Checklist of the vascular plants of CALIFORNIA
(excluding grasses and their allies)

ACANTHACEAE
Beloperone californica Benth.
  = Justicia californica
Carlowrightia arizonica Gray
  Arizona wrightwort
Justicia californica (Benth.) D. Gibson
  beloperone

ACERACEAE
Acer circinatum Pursh
  vine maple
Acer glabrum Torr.
  Rocky Mountain maple
Acer glabrum var. diffusum (Greene) Smiley
  Rocky Mountain maple
Acer glabrum var. greenei Keller
  Greene's maple
Acer glabrum var. glabrum Torr.
  Rocky Mountain maple
Acer glabrum var. torreyi (Greene) Smiley
  Torrey maple
Acer macrophyllum Pursh
  bigleaf maple
Acer negundo L.
  boxelder
Acer negundo var. californicum (Torr. & Gray) Sarg.
  California boxelder

ACORACEAE
Acorus americanus (Raf.) Raf.
  sweetflag
Acorus calamus auct. non L.
  = Acorus americanus

AGAVACEAE
Agave americana L.
  American century plant
Agave deserti Engelm.
  desert agave
Agave deserti ssp. deserti Engelm.
  desert agave
Agave deserti ssp. simplex Gentry
  desert agave
Agave shawii Engelm.
  coastal agave
Agave utahensis Engelm.
  Utah agave
Agave utahensis var. eborispina (Hester) Breitung
  Utah agave
Agave utahensis var. nevadensis Engelm. ex Greenm. & Roush
  Nevada agave
Nolina bigelovii (Torr.) S. Wats.
  Bigelow's nolina
Nolina bigelovii var. bigelovii (Torr.) S. Wats.
  Bigelow's nolina
Nolina interrata Gentry
  Dehesa beargrass
Nolina parryi S. Wats.
Yucca baccata Torr.
  banana yucca
Yucca baccata var. baccata Torr.
  banana yucca
Yucca brevifolia Engelm.
  Joshua tree
Yucca brevifolia var. brevifolia Engelm.
  Joshua tree
Yucca brevifolia var. jaegeriana McKelvey
  Jaeger's Joshua tree
Yucca schidigera Roezl ex Ortgies
  Mojave yucca
Yucca whipplei Torr.
  chaparral yucca
Yucca whipplei var. caespitosa M.E. Jones
  chaparral yucca
Yucca whipplei var. whipplei Torr.
  chaparral yucca

AIZOACEAE
Aptenia cordifolia (L. f.) Schwant.
  heartleaf iceplant
Carpobrotus aequilateralus (Haw.) N.E. Br.
  baby sunrose
Carpobrotus edulis (L.) N.E. Br.
  common hottentot fig
Cypselea humifusa Turp.
  panal
Disphyma crassifolium (L.) L. Bolus
  dewplant
Drosanthemum floribundum (Haw.) Schwant.
  showy dewflower
Drosanthemum speciosum (Haw.) Schwant.
  royal dewflower
Herrea elongata (Haw.) L. Bolus
  false iceplant
Lampranthus coccineus (Haw.) N.E. Br.
  redflush
Malephora crocea (Jacq.) Schwant.
  coppery mesemb
Mesembryanthemum cordifolium L. f.
  = Aptenia cordifolia
Mesembryanthemum coccineum Haw.
  = Lampranthus coccineus
Mesembryanthemum crystallinum L.
  common iceplant
Mesembryanthemum crassifolium L.
  = Disphyma crassifolium
Mesembryanthemum edule L.
  = Carpobrotus edulis
Mesembryanthemum elongatum Haw.
  = Herrea elongata
Mesembryanthemum floribundum Haw.
  = Drosanthemum floribundum
Mesembryanthemum nodiflorum L.
  slenderleaf iceplant
Sesuvium verrucosum Raf.
  verrucose seapurslane
Tetragonia tetragonioides (Pallas) Kuntze
  New Zealand spinach
Trianthema portulacastrum L.
  desert horsepurslane

ALISMATACEAE
Alisma gramineum Lej.
  narrowleaf water plantain
Alisma lanceolatum Withering
  lanceleaf water plantain
Alisma plantago-aquatica var. americanum J.A. Schultes
  = Alisma triviale
Alisma subcordatum Raf.
  American water plantain
Alisma triviale Pursh
  northern water plantain
Echinodorus berteroi (Spreng.) Fassett
  upright burrhead
Machaerocarpus californicus (Torr. ex Benth.) Small
  California damsonium
Sagittaria calycina Engelm.
  hooded arrowhead
Sagittaria calycina var. calycina Engelm.
  hooded arrowhead
Sagittaria cuneata Sheldon
  arumleaf arrowhead
Sagittaria latifolia Willd.
  broadleaf arrowhead
Sagittaria latifolia var. latifolia Willd.
  broadleaf arrowhead
Sagittaria longiloba Engelm. ex J.G. Sm.
  longbarb arrowhead
Sagittaria sanfordii Greene
  valley arrowhead

AMARANTHACEAE
Alternanthera caracasana Kunth
  washerwoman
Alternanthera philoxeroides (Mart.) Griseb.
  alligatorweed
Alternanthera pungens Kunth
  khakiweed
Amaranthus albus L.
  prostrate pigweed
Amaranthus arenicola I.M. Johnston
  sandhill amaranth
Amaranthus blitoides S. Wats.
  mat amaranth
Amaranthus californicus (Moq.) S. Wats.
  California amaranth
Amaranthus caudatus L.
  love-lies-bleeding
Amaranthus cruentus L.
  red amaranth
Amaranthus deflexus L.
  largefruit amaranth
Amaranthus fimbriatus (Torr.) Benth. ex S. Wats.
  fringed amaranth
Amaranthus hybridus L.
  slim amaranth
Amaranthus palmeri S. Wats.
  carelessweed
Amaranthus paniculatus L.
  = Amaranthus cruentus
Amaranthus powellii S. Wats.
  Powell's amaranth
Amaranthus pringlei S. Wats.
  Pringle's amaranth
Amaranthus retroflexus L.
  redroot amaranth
Amaranthus rudis Sauer
  tall amaranth
Amaranthus spinosus L.
  spiny amaranth
Amaranthus viridis L.
  slender amaranth
Amaranthus watsonii Standl.
  Watson's amaranth
Guilleminea densa (Humb. & Bonpl. ex Willd.) Moq.
  small matweed
Guilleminea densa var. densa (Humb. & Bonpl. ex Willd.) Moq.
  small matweed
Tidestromia lanuginosa (Nutt.) Standl.
  woolly tidestromia
Tidestromia oblongifolia (S. Wats.) Standl.
  Arizona honeysweet

ANACARDIACEAE
Lithrea molleoides (Vell.) Engl.
  aroeira blanca
Malosma laurina (Nutt.) Nutt. ex Abrams
  laurel sumac
Rhus diversiloba Torr. & Gray
  = Toxicodendron diversilobum
Rhus glabra L.
  smooth sumac
Rhus integrifolia (Nutt.) Benth. & Hook. f. ex Brewer & S. Wats.
  lemonade sumac
Rhus laurina Nutt.
  = Malosma laurina
Rhus ovata S. Wats.
  sugar sumac
Rhus trilobata Nutt.
  skunkbush sumac
Rhus trilobata var. anisophylla (Greene) Jepson
  skunkbush sumac
Rhus trilobata var. pilosissima Engelm.
  pubescent squawbush
Rhus trilobata var. quinata (Greene) Jepson
  skunkbush sumac
Rhus trilobata var. simplicifolia (Greene) Barkl.
  skunkbush sumac
Rhus trilobata var. trilobata Nutt.
  skunkbush sumac
Schinus molle L.
  Peruvian peppertree
Schinus terebinthifolius Raddi
  Christmasberry
Toxicodendron diversilobum (Torr. & Gray) Greene
  Pacific poison oak
Toxicodendron radicans ssp. diversilobum (Torr. & Gray) Thorne
  = Toxicodendron diversilobum

APOCYNACEAE
Amsonia tomentosa Torr. & Frem.
  woolly bluestar
Amsonia tomentosa var. tomentosa Torr. & Frem.
  woolly bluestar
Apocynum androsaemifolium L.
  spreading dogbane
Apocynum androsaemifolium ssp. androsaemifolium L.
  spreading dogbane
Apocynum androsaemifolium ssp. androsaemifolium var. androsaemifolium L.
  spreading dogbane
Apocynum androsaemifolium ssp. androsaemifolium var. incanum A. DC.
  spreading dogbane
Apocynum androsaemifolium ssp. pumilum (Gray) Boivin
  spreading dogbane
Apocynum androsaemifolium ssp. pumilum var. pumilum Gray
  low dogbane
Apocynum cannabinum L.
  Indianhemp
Apocynum X floribundum Greene (pro sp.)
  intermediate dogbane
Apocynum medium Greene
  = Apocynum X floribundum
Apocynum sibiricum Jacq.
  = Apocynum cannabinum
Apocynum suksdorfii Greene
  = Apocynum cannabinum
Cycladenia humilis Benth.
  Sacramento waxydogbane
Cycladenia humilis var. humilis Benth.
  Sacramento waxydogbane
Cycladenia humilis var. venusta (Eastw.) Woods. ex Munz
  Sacramento waxydogbane
Vinca major L.
  bigleaf periwinkle

APONOGETONACEAE
Aponogeton distachyos L. f.
  cape pondweed

ARACEAE
Arum italicum P. Mill.
  Italian lords and ladies
Lysichiton americanus Hulten & St. John
  American skunkcabbage
Lysichiton camtschatcensis auct. non (L.) Schott
  = Lysichiton americanus
Pistia stratiotes L.
  water lettuce
Zantedeschia aethiopica (L.) Spreng.
  calla lily

ARALIACEAE
Aralia californica S. Wats.
  California spikenard
Hedera helix L.
  English ivy

ARECACEAE
Neowashingtonia filamentosa (Fenzi) Sudworth
  = Washingtonia filifera
Phoenix canariensis hort. ex Chabaud
  Canary Island date palm
Washingtonia filamentosa (Fenzi) Kuntze
  = Washingtonia filifera
Washingtonia filifera (L. Linden) H. Wendl.
  California fan palm

ARISTOLOCHIACEAE
Aristolochia californica Torr.
  California dutchman's pipe
Asarum caudatum Lindl.
  British Columbia wildginger
Asarum caudatum var. caudatum Lindl.
  British Columbia wildginger
Asarum hartwegii S. Wats.
  Hartweg's wildginger
Asarum lemmonii S. Wats.
  Lemmon's wildginger
Asarum marmoratum Piper
  marbled wildginger

ASCLEPIADACEAE
Araujia sericifera Brot.
  white bladderflower
Asclepias albicans S. Wats.
  whitestem milkweed
Asclepias asperula (Dcne.) Woods.
  spider milkweed, inmortal
Asclepias asperula ssp. asperula (Dcne.) Woods.
  spider milkweed, inmortal
Asclepias californica Greene
  California milkweed
Asclepias californica ssp. californica Greene
  California milkweed
Asclepias californica ssp. greenei Woods.
  Greene's milkweed
Asclepias cordifolia (Benth.) Jepson
  heartleaf milkweed
Asclepias cryptoceras S. Wats.
  pallid milkweed
Asclepias cryptoceras ssp. cryptoceras S. Wats.
  pallid milkweed
Asclepias cryptoceras ssp. davisii (Woods.) Woods.
  Davis' milkweed
Asclepias curassavica L.
  bloodflower
Asclepias eriocarpa Benth.
  woollypod milkweed
Asclepias erosa Torr.
  desert milkweed
Asclepias fascicularis Dcne.
  Mexican whorled milkweed
Asclepias latifolia (Torr.) Raf.
  broadleaf milkweed
Asclepias nyctaginifolia Gray
  Mojave milkweed
Asclepias solanoana Woods.
  serpentine milkweed
Asclepias speciosa Torr.
  showy milkweed
Asclepias subulata Dcne.
  rush milkweed
Asclepias vestita Hook. & Arn.
  woolly milkweed
Asclepias vestita ssp. parishii (Jepson) Woods.
  Parish's woolly milkweed
Asclepias vestita ssp. vestita Hook. & Arn.
  woolly milkweed
Cynanchum utahense (Engelm.) Woods.
  Utah swallowwort
Funastrum 
  = Sarcostemma 
Gonolobus 
  = Matelea 
Matelea parvifolia (Torr.) Woods.
  spearleaf
Sarcostemma cynanchoides Dcne.
  fringed twinevine
Sarcostemma cynanchoides ssp. hartwegii (Vail) R. Holm
  Hartweg's twinevine
Sarcostemma hirtellum (Gray) R. Holm
  hairy milkweed
Solanoa purpurascens (Gray) Greene
  = Asclepias solanoana

ASPLENIACEAE
Asplenium septentrionale (L.) Hoffmann
  forked spleenwort
Asplenium trichomanes L.
  maidenhair spleenwort
Asplenium trichomanes-ramosum L.
  brightgreen spleenwort
Asplenium vespertinum Maxon
  western spleenwort

AZOLLACEAE
Azolla filiculoides Lam.
  Pacific azolla
Azolla mexicana Schlecht. & Cham. ex K. Presl
  Mexican azolla

BALSAMINACEAE
Impatiens balfourii Hook. f.
  Balfour's touchmenot
Impatiens glandulifera Royle
  ornamental jewelweed
Impatiens noli-tangere L.
  western touchmenot
Impatiens occidentalis Rydb.
  = Impatiens noli-tangere

BASELLACEAE
Anredera cordifolia (Ten.) Steenis
  heartleaf madeiravine

BATACEAE
Batis maritima L.
  turtleweed

BERBERIDACEAE
Achlys triphylla (Sm.) DC.
  vanilla leaf
Berberis amplectens (Eastw.) L.C. Wheeler
  = Mahonia repens
Berberis aquifolium Pursh
  = Mahonia aquifolium
Berberis californica Jepson
  = Mahonia californica
Berberis dictyota Jepson
  = Mahonia dictyota
Berberis fremontii Torr.
  = Mahonia fremontii
Berberis haematocarpa Woot.
  = Mahonia haematocarpa
Berberis nevinii Gray
  = Mahonia nevinii
Berberis nervosa Pursh
  = Mahonia nervosa var. nervosa
Berberis pinnata Lag.
  = Mahonia pinnata ssp. pinnata
Berberis repens Lindl.
  = Mahonia repens
Berberis sonnei (Abrams) McMinn
  = Mahonia repens
Mahonia aquifolium (Pursh) Nutt.
  hollyleaved barberry
Mahonia californica (Jepson) Ahrendt
  California Oregongrape
Mahonia dictyota (Jepson) Fedde
  shining netvein barberry
Mahonia fremontii (Torr.) Fedde
  Fremont's mahonia
Mahonia haematocarpa (Woot.) Fedde
  red barberry
Mahonia nervosa (Pursh) Nutt.
  Cascade Oregongrape
Mahonia nevinii (Gray) Fedde
  Nevin's barberry
Mahonia nervosa var. mendocinensis (J.B. Roof) J.B. Roof
  Mendocino Oregongrape
Mahonia nervosa var. nervosa (Pursh) Nutt.
  cascade Oregongrape
Mahonia pinnata (Lag.) Fedde
  wavyleaf Oregongrape
Mahonia pinnata ssp. insularis (Munz) J.B. Roof
  island barberry
Mahonia pinnata ssp. pinnata (Lag.) Fedde
  California barberry
Mahonia repens (Lindl.) G. Don
  Oregongrape
Vancouveria chrysantha Greene
  golden insideout flower
Vancouveria hexandra (Hook.) Morr. & Dcne.
  white insideout flower
Vancouveria planipetala Calloni
  redwood insideout flower

BETULACEAE
Alnus incana (L.) Moench
  mountain alder
Alnus incana ssp. tenuifolia (Nutt.) Breitung
  thinleaf alder
Alnus rhombifolia Nutt.
  white alder
Alnus rubra Bong.
  red alder
Alnus viridis (Vill.) Lam. & DC.
  sitka alder
Alnus viridis ssp. sinuata (Regel) A.& D. Love
  Sitka alder
Betula fontinalis Sarg.
  = Betula occidentalis
Betula nana L.
  bog birch
Betula occidentalis Hook.
  water birch
Betula papyrifera var. occidentalis (Hook.) Sarg.
  = Betula occidentalis
Corylus cornuta Marsh.
  beaked hazelnut
Corylus cornuta var. californica (A. DC.) Sharp
  California hazelnut

BIGNONIACEAE
Chilopsis linearis (Cav.) Sweet
  desert willow
Chilopsis linearis ssp. arcuata (Fosberg) Henrickson
  desert willow

BLECHNACEAE
Blechnum spicant (L.) Roth
  deer fern
Woodwardia fimbriata Sm.
  giant chainfern

BORAGINACEAE
Amsinckia douglasiana A. DC.
  Douglas' fiddleneck
Amsinckia eastwoodiae J.F. Macbr.
  Eastwood's fiddleneck
Amsinckia grandiflora (Kleeb. ex Gray) Kleeb. ex Greene
  largeflowered fiddleneck
Amsinckia intermedia Fisch. & C.A. Mey.
  = Amsinckia menziesii var. intermedia
Amsinckia lunaris J.F. Macbr.
  bentflower fiddleneck
Amsinckia lycopsoides Lehm.
  tarweed fiddleneck
Amsinckia menziesii (Lehm.) A. Nels. & J.F. Macbr.
  Menzies' fiddleneck
Amsinckia menziesii var. intermedia (Fisch & C.A. Mey.) Ganders
Amsinckia menziesii var. menziesii (Lehm.) A. Nels. & J.F. Macbr.
Amsinckia spectabilis Fisch. & C.A. Mey.
  woolly breeches
Amsinckia tessellata Gray
  bristly fiddleneck
Amsinckia tessellata var. gloriosa (Eastw. ex Suksdorf) Hoover
Amsinckia vernicosa Hook. & Arn.
  green fiddleneck
Amsinckia vernicosa var. furcata (Suksdorf) Hoover
Anchusa arvensis (L.) Bieb.
  small bugloss
Anchusa officinalis L.
  common bugloss
Asperugo procumbens L.
  madwort
Borago officinalis L.
  common borage
Buglossoides arvensis (L.) I.M. Johnston
  corn gromwell
Coldenia 
  = Tiquilia 
Cryptantha affinis (Gray) Greene
  quill catseye
Cryptantha ambigua (Gray) Greene
  basin catseye
Cryptantha angustifolia (Torr.) Greene
  Panamint catseye
Cryptantha barbigera (Gray) Greene
  bearded catseye
Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston
  cushion catseye
Cryptantha cinerea (Greene) Cronq.
  James' catseye
Cryptantha cinerea var. abortiva (Greene) Cronq.
  James' catseye
Cryptantha circumscissa var. circumscissa (Hook. & Arn.) I.M. Johnston
  cushion catseye
Cryptantha circumscissa var. hispida (J.F. Macbr.) I.M. Johnston
  cushion catseye
Cryptantha circumscissa var. rosulata J.T. Howell
  cushion catseye
Cryptantha clevelandii Greene
  Cleveland's catseye
Cryptantha clevelandii var. clevelandii Greene
  Cleveland's catseye
Cryptantha clevelandii var. dissita (I.M. Johnston) Jepson & Hoover
  Cleveland's catseye
Cryptantha clevelandii var. florosa I.M. Johnston
  Cleveland's catseye
Cryptantha confertiflora (Greene) Payson
  basin yellow catseye
Cryptantha costata Brandeg.
  ribbed catseye
Cryptantha corollata (I.M. Johnston) I.M. Johnston
  coast range catseye
Cryptantha crinita Greene
  Sacramento catseye
Cryptantha crymophila I.M. Johnston
  subalpine catseye
Cryptantha dumetorum (Greene ex Gray) Greene
  bushloving catseye
Cryptantha echinella Greene
  prickly catseye
Cryptantha excavata Brandeg.
  deepscar catseye
Cryptantha flaccida (Dougl. ex Lehm.) Greene
  weakstem catseye
Cryptantha flavoculata (A. Nels.) Payson
  roughseed catseye
Cryptantha ganderi I.M. Johnston
  Gander's catseye
Cryptantha glomeriflora Greene
  Truckee catseye
Cryptantha gracilis Osterhout
  narrowstem catseye
Cryptantha hispidula Greene ex Brand
  Napa catseye
Cryptantha hoffmannii I.M. Johnston
  Hoffmann's catseye
Cryptantha holoptera (Gray) J.F. Macbr.
  winged catseye
Cryptantha hooveri I.M. Johnston
  Hoover's catseye
Cryptantha humilis (Gray) Payson
  roundspike catseye
Cryptantha incana Greene
  Tulare catseye
Cryptantha intermedia (Gray) Greene
  Clearwater catseye
Cryptantha leiocarpa (Fisch. & C.A. Mey.) Greene
  coastal catseye
Cryptantha mariposae I.M. Johnston
  Mariposa catseye
Cryptantha maritima (Greene) Greene
  Guadalupe catseye
Cryptantha maritima var. maritima (Greene) Greene
  Guadalupe catseye
Cryptantha maritima var. pilosa I.M. Johnston
  Guadalupe catseye
Cryptantha micrantha (Torr.) I.M. Johnston
  redroot catseye
Cryptantha micromeres (Gray) Greene
  pygmyflower catseye
Cryptantha microstachys (Greene ex Gray) Greene
  Tejon catseye
Cryptantha milo-bakeri I.M. Johnston
  Milo Baker's catseye
Cryptantha micrantha var. lepida (Gray) I.M. Johnston
  redroot catseye
Cryptantha micrantha var. micrantha (Torr.) I.M. Johnston
  redroot catseye
Cryptantha mohavensis (Greene) Greene
  Mojave catseye
Cryptantha muricata (Hook. & Arn.) A. Nels. & J.F. Macbr.
  pointed catseye
Cryptantha muricata var. clokeyi (I.M. Johnston) Jepson
  Clokey's catseye
Cryptantha muricata var. denticulata (Greene) I.M. Johnston
  pointed catseye
Cryptantha muricata var. jonesii (Gray) I.M. Johnston
  Jones's catseye
Cryptantha muricata var. muricata (Hook. & Arn.) A. Nels. & J.F. Macbr.
  pointed catseye
Cryptantha nemaclada Greene
  Colusa catseye
Cryptantha nevadensis A. Nels. & Kennedy
  Nevada catseye
Cryptantha nevadensis var. nevadensis A. Nels. & Kennedy
  Nevada catseye
Cryptantha nevadensis var. rigida I.M. Johnston
  Nevada catseye
Cryptantha nubigena (Greene) Payson
  Sierran catseye
Cryptantha oxygona (Gray) Greene
  sharpnut catseye
Cryptantha pterocarya (Torr.) Greene
  wingnut catseye
Cryptantha pterocarya var. cycloptera (Greene) J.F. Macbr.
  wingnut catseye
Cryptantha pterocarya var. pterocarya (Torr.) Greene
  wingnut catseye
Cryptantha racemosa (S. Wats.) Greene
  bushy catseye
Cryptantha rattanii Greene
  Rattan's catseye
Cryptantha recurvata Coville
  curvenut catseye
Cryptantha roosiorum Munz
  bristlecone catseye
Cryptantha rostellata var. rostellata (Greene) Greene
  beaked catseye
Cryptantha scoparia A. Nels.
  Pinyon Desert catseye
Cryptantha simulans Greene
  pinewoods catseye
Cryptantha similis Mathew & Raven
  desert catseye
Cryptantha sobolifera Payson
  Waterton Lakes catseye
Cryptantha sparsiflora (Greene) Greene
  slender catseye
Cryptantha spiculifera (Piper) Payson
  Snake River catseye
Cryptantha torreyana (Gray) Greene
  Torrey's catseye
Cryptantha torreyana var. torreyana (Gray) Greene
  Torrey's catseye
Cryptantha traskiae I.M. Johnston
  Trask's catseye
Cryptantha tumulosa (Payson) Payson
  New York Mountain catseye
Cryptantha utahensis (Gray) Greene
  scented catseye
Cryptantha virginensis (M.E. Jones) Payson
  Virgin River catseye
Cryptantha watsonii (Gray) Greene
  Watson's catseye
Cynoglossum grande Dougl. ex Lehm.
  Pacific hound's tongue
Cynoglossum occidentale Gray
  western hound's tongue
Cynoglossum officinale L.
  gypsyflower
Echium fastuosum Ait.
  pride of Madeira
Echium plantagineum L.
  salvation jane
Hackelia amethystina J.T. Howell
  amethyst stickseed
Hackelia bella (J.F. Macbr.) I.M. Johnston
  greater showy stickseed
Hackelia brevicula (Jepson) J.L. Gentry
  Poison Canyon stickseed
Hackelia californica (Gray) I.M. Johnston
  California stickseed
Hackelia cusickii (Piper) Brand
  Cusick's stickseed
Hackelia floribunda (Lehm.) I.M. Johnston
  manyflower stickseed
Hackelia micrantha (Eastw.) J.L. Gentry
  Jessica sticktight
Hackelia mundula (Jepson) Ferris
  pink stickseed
Hackelia nervosa (Kellogg) I.M. Johnston
  Sierran stickseed
Hackelia patens (Nutt.) I.M. Johnston
  common stickseed
Hackelia patens var. patens (Nutt.) I.M. Johnston
  spotted stickseed
Hackelia setosa (Piper) I.M. Johnston
  bristly stickseed
Hackelia sharsmithii I.M. Johnston
  Sharsmith's stickseed
Hackelia velutina (Piper) I.M. Johnston
  velvet stickseed
Hackelia virginiana (L.) I.M. Johnston
  beggarslice
Harpagonella palmeri Gray
  Palmer's grapplinghook
Harpagonella palmeri var. palmeri Gray
  Palmer's grapplinghook
Heliotropium amplexicaule Vahl
  clasping heliotrope
Heliotropium convolvulaceum (Nutt.) Gray
  phlox heliotrope
Heliotropium curassavicum L.
  salt heliotrope
Heliotropium curassavicum var. oculatum (Heller) I.M. Johnston
  seaside heliotrope
Heliotropium europaeum L.
  European heliotrope
Lappula occidentalis (S. Wats.) Greene
  flatspine stickseed
Lappula occidentalis var. occidentalis (S. Wats.) Greene
  desert stickseed
Lappula squarrosa (Retz.) Dumort.
  European stickseed
Lithospermum arvense L.
  = Buglossoides arvensis
Lithospermum californicum Gray
  California gromwell
Lithospermum incisum Lehm.
  narrowleaf gromwell
Lithospermum ruderale Dougl. ex Lehm.
  western gromwell
Mertensia bella Piper
  beautiful bluebells
Mertensia ciliata (James ex Torr.) G. Don
  mountain bluebells
Mertensia ciliata var. stomatechoides (Kellogg) Jepson
  tall fringe bluebells
Mertensia cusickii Piper
  Toiyabe bluebells
Mertensia franciscana Heller
  Franciscan bluebells
Mertensia longiflora Greene
  small bluebells
Mertensia oblongifolia (Nutt.) G. Don
  oblongleaf bluebells
Myosotis discolor Pers.
  changing forget me not
Myosotis laxa Lehm.
  bay forget me not
Myosotis latifolia Poir.
  broadleaf forget me not
Myosotis scorpioides L.
  true forget me not
Myosotis stricta Link ex Roemer & J.A. Schultes
  strict forget me not
Myosotis sylvatica Ehrh. ex Hoffmann
  woodland forget me not
Myosotis verna Nutt.
  spring forget me not
Pectocarya heterocarpa (I.M. Johnston) I.M. Johnston
  chuckwalla combseed
Pectocarya linearis (Ruiz & Pavon) DC.
  sagebrush combseed
Pectocarya penicillata (Hook. & Arn.) A. DC.
  sleeping combseed
Pectocarya platycarpa (Munz & Johnston) Munz & Johnston
  broadfruit combseed
Pectocarya pusilla (A. DC.) Gray
  little combseed
Pectocarya recurvata I.M. Johnston
  curvenut combseed
Pectocarya setosa Gray
  moth combseed
Pentaglottis sempervirens (L.) Tausch ex Bailey
  evergreen bugloss
Plagiobothrys acanthocarpus (Piper) I.M. Johnston
  adobe popcornflower
Plagiobothrys arizonicus (Gray) Greene ex Gray
  Arizona popcornflower
Plagiobothrys austiniae (Greene) I.M. Johnston
  Austin's popcornflower
Plagiobothrys bracteatus (T.J. Howell) I.M. Johnston
  bracted popcornflower
Plagiobothrys bracteatus var. aculeolatus (Piper) I.M. Johnston
  bracted popcornflower
Plagiobothrys bracteatus var. bracteatus (T.J. Howell) I.M. Johnston
  bracted popcornflower
Plagiobothrys canescens Benth.
  valley popcornflower
Plagiobothrys canescens var. canescens Benth.
  valley popcornflower
Plagiobothrys canescens var. catalinensis (Gray) Jepson
  Catalina popcornflower
Plagiobothrys chorisianus (Cham.) I.M. Johnston
  artist's popcornflower
Plagiobothrys chorisianus var. chorisianus (Cham.) I.M. Johnston
  artist's popcornflower
Plagiobothrys chorisianus var. hickmanii (Greene) I.M. Johnston
  Hickman's popcornflower
Plagiobothrys chorisianus var. undulatus (Piper) Higgins, comb. nov. ined.
  artist's popcornflower
Plagiobothrys collinus (Phil.) I.M. Johnston
  Cooper's popcornflower
Plagiobothrys collinus var. californicus (Gray) Higgins
  California popcornflower
Plagiobothrys collinus var. fulvescens (I.M. Johnston) Higgins
  Cooper's popcornflower
Plagiobothrys collinus var. gracilis (I.M. Johnston) Higgins
  Cooper's popcornflower
Plagiobothrys collinus var. ursinus (Gray) Higgins
  Cooper's popcornflower
Plagiobothrys distantiflorus (Piper) I.M. Johnston ex M.E. Peck
  California popcornflower
Plagiobothrys fulvus (Hook. & Arn.) I.M. Johnston
  fulvous popcornflower
Plagiobothrys fulvus var. campestris (Greene) I.M. Johnston
  fulvous popcornflower
Plagiobothrys glaber (Gray) I.M. Johnston
  hairless popcornflower
Plagiobothrys glyptocarpus (Piper) I.M. Johnston
  sculptured popcornflower
Plagiobothrys glyptocarpus var. glyptocarpus (Piper) I.M. Johnston
  sculptured popcornflower
Plagiobothrys glyptocarpus var. modestus I.M. Johnston
  sculptured popcornflower
Plagiobothrys greenei (Gray) I.M. Johnston
  Greene's popcornflower
Plagiobothrys hispidus Gray
  Cascade popcornflower
Plagiobothrys humistratus (Greene) I.M. Johnston
  dwarf popcornflower
Plagiobothrys hystriculus (Piper) I.M. Johnston
  bearded popcornflower
Plagiobothrys infectivus I.M. Johnston
  dye popcornflower
Plagiobothrys jonesii Gray
  Mojave popcornflower
Plagiobothrys kingii (S. Wats.) Gray
  Great Basin popcornflower
Plagiobothrys kingii var. harknessii (Greene) Jepson
  Harness' popcornflower
Plagiobothrys kingii var. kingii (S. Wats.) Gray
  King's popcornflower
Plagiobothrys leptocladus (Greene) I.M. Johnston
  finebranched popcornflower
Plagiobothrys lithocaryus (Greene ex Gray) I.M. Johnston
  Mayacamas popcornflower
Plagiobothrys mollis (Gray) I.M. Johnston
  soft popcornflower
Plagiobothrys mollis var. mollis (Gray) I.M. Johnston
  soft popcornflower
Plagiobothrys mollis var. vestitus (Greene) I.M. Johnston
  soft popcornflower
Plagiobothrys myosotoides (Lehm.) Brand
  forget me not popcornflower
Plagiobothrys nothofulvus (Gray) Gray
  rusty popcornflower
Plagiobothrys parishii I.M. Johnston
  Parish's popcornflower
Plagiobothrys reticulatus (Piper) I.M. Johnston
  netted popcornflower
Plagiobothrys salsus (Brandeg.) I.M. Johnston
  salty popcornflower
Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston
  Scouler's popcornflower
Plagiobothrys scriptus (Greene) I.M. Johnston
  scribe popcornflower
Plagiobothrys scouleri var. cusickii (Greene) Higgins
  Cusick's popcornflower
Plagiobothrys scouleri var. hispidulus (Greene) Dorn
  sleeping popcornflower
Plagiobothrys scouleri var. scouleri (Hook. & Arn.) I.M. Johnston
  Scouler's popcornflower
Plagiobothrys shastensis Greene ex Gray
  Shasta popcornflower
Plagiobothrys stipitatus (Greene) I.M. Johnston
  slender popcornflower
Plagiobothrys strictus (Greene) I.M. Johnston
  Calistoga popcornflower
Plagiobothrys stipitatus var. micranthus (Piper) I.M. Johnston
  stalked popcornflower
Plagiobothrys stipitatus var. stipitatus (Greene) I.M. Johnston
  slender popcornflower
Plagiobothrys tenellus (Nutt. ex Hook.) Gray
  Pacific popcornflower
Plagiobothrys tener (Greene) I.M. Johnston
  slender popcornflower
Plagiobothrys tener var. subglaber I.M. Johnston
  slender popcornflower
Plagiobothrys tener var. tener (Greene) I.M. Johnston
  slender popcornflower
Plagiobothrys torreyi (Gray) Gray
  Torrey's popcornflower
Plagiobothrys torreyi var. diffusus (Greene) I.M. Johnston
Plagiobothrys trachycarpus (Gray) I.M. Johnston
  roughfruit popcornflower
Plagiobothrys uncinatus J.T. Howell
  Salinas Valley popcornflower
Symphytum asperum Lepechin
  prickly comfrey
Tiquilia canescens (DC.) A. Richards.
  woody crinklemat
Tiquilia canescens var. canescens (DC.) A. Richards.
  gray coldenia
Tiquilia canescens var. pulchella (I.M. Johnston) A. Richards.
  woody crinklemat
Tiquilia nuttallii (Hook.) A. Richards.
  Nuttall's coldenia
Tiquilia palmeri (Gray) A. Richards.
  Palmer's coldenia
Tiquilia plicata (Torr.) A. Richards.
  fanleaf crinklemat

BUDDLEJACEAE
Buddleja davidii Franch.
  orange eye butterflybush
Buddleja saligna Willd.
  squarestem butterflybush
Buddleja utahensis Coville
  Utah butterflybush

BURSERACEAE
Bursera microphylla Gray
  elephanttree

CABOMBACEAE
Brasenia schreberi J.F. Gmel.
  watershield

CACTACEAE
Bergerocactus emoryi (Engelm.) Engelm.
  golden snakecactus
Carnegia gigantea (Engelm.) Britt. & Rose
  saguaro
Echinocactus polycephalus Engelm. & Bigelow
  cottontop cactus
Echinocactus polycephalus var. polycephalus Engelm. & Bigelow
  cottontop cactus
Echinocereus coccineus Engelm.
  scarlet hedgehog cactus
Echinocereus coccineus var. coccineus Engelm.
  scarlet hedgehog cactus
Echinocereus engelmannii (Parry ex Engelm.) Lem.
  saints cactus
Echinocereus engelmannii var. acicularis L. Benson
  saints cactus
Echinocereus engelmannii var. armatus L. Benson
  saints cactus
Echinocereus engelmannii var. chrysocentrus (Engelm. & Bigelow) Rumpl.
  saints cactus
Echinocereus engelmannii var. engelmannii (Parry ex Engelm.) Lem.
  Engelmann's cactus
Echinocereus engelmannii var. howei L. Benson
  Howe's cactus
Echinocereus engelmannii var. munzii (Parish) Pierce & Fosberg
  Munz's cactus
Echinocereus triglochidiatus Engelm.
  kingcup cactus
Echinocereus triglochidiatus var. mojavensis (Engelm. & Bigelow) L. Benson
  Mojave kingcup cactus
Escobaria alversonii (Coult.) N.P. Taylor, comb. nov. ined.
  cushion foxtail cactus
Escobaria vivipara (Nutt.) Buxbaum
  spinystar
Escobaria vivipara var. arizonica (Engelm.) D.R. Hunt
  Arizona spinystar
Escobaria vivipara var. deserti (Engelm.) D.R. Hunt
  desert spinystar
Escobaria vivipara var. rosea (Clokey) D.R. Hunt
  spinystar
Ferocactus cylindraceus (Engelm.) Orcutt
  California barrelcactus
Ferocactus cylindraceus var. cylindraceus (Engelm.) Orcutt
  California barrelcactus
Ferocactus cylindraceus var. lecontei (Engelm.) H. Bravo
  Leconte's barrelcactus
Ferocactus viridescens (Torr. & Gray) Britt. & Rose
  San Diego barrelcactus
Mammillaria dioica K. Brandeg.
  strawberry cactus
Mammillaria grahamii Engelm.
  Graham's nipple cactus
Mammillaria grahamii var. grahamii Engelm.
  Graham's nipple cactus
Mammillaria tetrancistra Engelm.
  common fishhook cactus
Neolloydia johnsonii (Parry ex Engelm.) L. Benson
  = Sclerocactus johnsonii
Opuntia X demissa Griffiths (pro sp.)
  pricklypear
Opuntia X occidentalis Engelm. & Bigelow (pro sp.)
  pricklypear
Opuntia acanthocarpa Engelm. & Bigelow
  buckhorn cholla
Opuntia acanthocarpa var. acanthocarpa Engelm. & Bigelow
  buckhorn cholla
Opuntia acanthocarpa var. coloradensis L. Benson
  Colorado buckhorn cholla
Opuntia acanthocarpa var. ganderi (C.B. Wolf) L. Benson
  Gander's buckhorn cholla
Opuntia acanthocarpa var. major (Engelm. & Bigelow) L. Benson
  buckhorn cholla
Opuntia basilaris Engelm. & Bigelow
  beavertail pricklypear
Opuntia basilaris var. basilaris Engelm. & Bigelow
  beavertail pricklypear
Opuntia basilaris var. brachyclada (Griffiths) Munz
  beavertail pricklypear
Opuntia basilaris var. treleasei (Coult.) Coult. ex Toumey
  Trelease's beavertail pricklypear
Opuntia bigelovii Engelm.
  teddybear cholla
Opuntia bigelovii var. bigelovii Engelm.
  teddybear cholla
Opuntia chlorotica Engelm. & Bigelow
  dollarjoint pricklypear
Opuntia curvospina Griffiths
  Searchlight pricklypear
Opuntia echinocarpa Engelm. & Bigelow
  staghorn cholla
Opuntia echinocarpa var. echinocarpa Engelm. & Bigelow
  staghorn cholla
Opuntia engelmannii Salm-Dyck
  cactus apple
Opuntia engelmannii var. engelmannii Salm-Dyck
  cactus apple
Opuntia erinacea Engelm. & Bigelow ex Engelm.
  grizzlybear pricklypear
Opuntia erinacea var. erinacea Engelm. & Bigelow ex Engelm.
  grizzlybear pricklypear
Opuntia erinacea var. ursina (A. Weber) Parish
  grizzlybear pricklypear
Opuntia erinacea var. utahensis (Engelm.) L. Benson
  Utah grizzlybear pricklypear
Opuntia ficus-indica (L.) P. Mill.
  tuna cactus
Opuntia fosbergii C.B. Wolf
  Hoffmann's teddybear cholla
Opuntia fragilis (Nutt.) Haw.
  brittle pricklypear
Opuntia fragilis var. fragilis (Nutt.) Haw.
  pygmy pricklypear
Opuntia kunzei Rose
  devil's cholla
Opuntia littoralis (Engelm.) Cockerell
  coastal pricklypear
Opuntia littoralis var. austrocalifornica L. Benson & Walkington
  coastal pricklypear
Opuntia littoralis var. littoralis (Engelm.) Cockerell
  coastal pricklypear
Opuntia littoralis var. piercei (Fosberg) L. Benson & Walkington
  coastal pricklypear
Opuntia littoralis var. vaseyi (Coult.) L. Benson & Walkington
  Vasey's coastal pricklypear
Opuntia macrorhiza Engelm.
  twistspine pricklypear
Opuntia macrorhiza var. macrorhiza Engelm.
  twistspine pricklypear
Opuntia martiniana (L. Benson) Parfitt
  seashore cactus
Opuntia munzii C.B. Wolf
  Munz's cholla
Opuntia oricola Philbrick
  chaparral pricklypear
Opuntia parishii Orcutt
  matted cholla
Opuntia parryi Engelm.
  brownspined pricklypear
Opuntia parryi var. parryi Engelm.
  brownspined pricklypear
Opuntia parryi var. serpentina (Engelm.) L. Benson
  serpentine cholla
Opuntia phaeacantha Engelm.
  tulip pricklypear
Opuntia phaeacantha var. major Engelm.
  Mojave pricklypear
Opuntia polyacantha Haw.
  plains pricklypear
Opuntia polyacantha var. rufispina (Engelm. & Bigelow ex Engelm.) L. Benson
  hairspine pricklypear
Opuntia prolifera Engelm.
  coastal cholla
Opuntia pulchella Engelm.
  sagebrush cholla
Opuntia ramosissima Engelm.
  branched pencil cholla
Opuntia wigginsii L. Benson
  Wiggins' cholla
Opuntia wolfii (L. Benson) M.A. Baker
  Wolf's opuntia
Sclerocactus johnsonii (Parry ex Engelm.) N.P. Taylor
  Johnson's fishhook cactus
Sclerocactus polyancistrus (Engelm. & Bigelow) Britt. & Rose
  redspined fishhook cactus

CALLITRICHACEAE
Callitriche hermaphroditica L.
  northern waterstarwort
Callitriche heterophylla Pursh
  larger waterstarwort
Callitriche heterophylla ssp. bolanderi (Hegelm.) Calder & Taylor
  Bolander's waterstarwort
Callitriche heterophylla ssp. heterophylla Pursh
  twoheaded waterstarwort
Callitriche longipedunculata Morong
  longstock waterstarwort
Callitriche marginata Torr.
  winged waterstarwort
Callitriche palustris L.
  vernal waterstarwort
Callitriche peploides Nutt.
  matted waterstarwort
Callitriche stagnalis Scop.
  pond waterstarwort
Callitriche trochlearis Fassett
  effluent waterstarwort

CALYCANTHACEAE
Calycanthus occidentalis Hook. & Arn.
  western sweetshrub

CAMPANULACEAE
Asyneuma prenanthoides (Dur.) McVaugh
  California harebell
Campanula angustiflora Eastw.
  Eastwood's bellflower
Campanula californica (Kellogg) Heller
  swamp bellflower
Campanula exigua Rattan
  chaparral bellflower
Campanula griffinii Morin
  Griffin's bellflower
Campanula rotundifolia L.
  bluebell bellflower
Campanula scabrella Engelm.
  rough bellflower
Campanula scouleri Hook. ex A. DC.
  pale bellflower
Campanula sharsmithiae Morin
  Mt. Hamilton bellflower
Campanula shetleri Heckard
  Castle Crags bellflower
Campanula wilkinsiana Greene
  Wilkins' bellflower
Downingia bacigalupii Weiler
  Bach's calicoflower
Downingia bella Hoover
  Hoover's calicoflower
Downingia bicornuta Gray
  doublehorn calicoflower
Downingia bicornuta var. bicornuta Gray
  doublehorn calicoflower
Downingia bicornuta var. picta Hoover
  doublehorn calicoflower
Downingia concolor Greene
  maroonspot calicoflower
Downingia concolor var. brevior McVaugh
  maroonspot calicoflower
Downingia concolor var. concolor Greene
  maroonspot calicoflower
Downingia concolor var. tricolor (Greene) Jepson
  maroonspot calicoflower
Downingia cuspidata (Greene) Greene ex Jepson
  toothed calicoflower
Downingia elegans (Dougl. ex Lindl.) Torr.
  elegant calicoflower
Downingia elegans var. brachypetala (Gandog.) McVaugh
  elegant calicoflower
Downingia elegans var. elegans (Dougl. ex Lindl.) Torr.
  elegant calicoflower
Downingia insignis Greene
  harlequin calicoflower
Downingia laeta (Greene) Greene
  Great Basin calicoflower
Downingia montana Greene
  Sierran calicoflower
Downingia ornatissima Greene
  folded calicoflower
Downingia ornatissima var. eximia (Hoover) McVaugh
  folded calicoflower
Downingia ornatissima var. ornatissima Greene
  folded calicoflower
Downingia pulchella (Lindl.) Torr.
  flatface calicoflower
Downingia pusilla (G. Don) Torr.
  dwarf calicoflower
Downingia yina Applegate
  cascade calicoflower
Githopsis diffusa Gray
  San Gabriel bluecup
Githopsis diffusa ssp. candida (Ewan) Morin
  San Gabriel bluecup
Githopsis diffusa ssp. diffusa Gray
  San Gabriel bluecup
Githopsis diffusa ssp. filicaulis (Ewan) Morin
  San Gabriel bluecup
Githopsis diffusa ssp. robusta Morin
  San Gabriel bluecup
Githopsis pulchella Vatke
  Sierran bluecup
Githopsis pulchella ssp. campestris Morin
  Sierran bluecup
Githopsis pulchella ssp. pulchella Vatke
  Sierran bluecup
Githopsis pulchella ssp. pulchella var. glabra (Jepson) Morin
  Sierran bluecup
Githopsis pulchella ssp. pulchella var. pulchella Vatke
  Sierran bluecup
Githopsis pulchella ssp. serpentinicola Morin
  serpentine bluecup
Githopsis specularioides Nutt.
  common bluecup
Githopsis tenella Morin
  tubeflower bluecup
Heterocodon rariflorum Nutt.
  rareflower heterocodon
Howellia aquatilis Gray
  water howellia
Legenere limosa (Greene) McVaugh
  false venus' looking glass
Legousia speculum-veneris (L.) Fisch. ex A. DC.
  European venus' looking glass
Lobelia cardinalis L.
  cardinalflower
Lobelia cardinalis ssp. graminea (Lam.) McVaugh
  cardinalflower
Lobelia cardinalis ssp. graminea var. graminea (Lam.) McVaugh
  cardinalflower
Lobelia cardinalis ssp. graminea var. propinqua (Paxton) Bowden
  cardinalflower
Lobelia dunnii Greene
  Dunn's lobelia
Lobelia dunnii ssp. dunnii Greene
  Dunn's lobelia
Lobelia dunnii ssp. dunnii var. serrata (Gray) McVaugh
  Dunn's lobelia
Lobelia erinus L.
  edging lobelia
Nemacladus capillaris Greene
  common threadplant
Nemacladus glanduliferus Jepson
  glandular threadplant
Nemacladus glanduliferus var. glanduliferus Jepson
  glandular threadplant
Nemacladus glanduliferus var. orientalis McVaugh
  glandular threadplant
Nemacladus gracilis Eastw.
  slender threadplant
Nemacladus interior (Munz) G.T. Robbins
  Sierran threadplant
Nemacladus longiflorus Gray
  longflower threadplant
Nemacladus longiflorus var. breviflorus McVaugh
  longflower threadplant
Nemacladus longiflorus var. longiflorus Gray
  longflower threadplant
Nemacladus montanus Greene
  mountain threadplant
Nemacladus pinnatifidus Greene
  combleaf threadplant
Nemacladus ramosissimus Nutt.
  smallflower threadplant
Nemacladus rigidus Curran
  stoutstem threadplant
Nemacladus rubescens Greene
  desert threadplant
Nemacladus rubescens var. rubescens Greene
  desert threadplant
Nemacladus rubescens var. tenuis McVaugh
  desert threadplant
Nemacladus secundiflorus G.T. Robbins
  onesided threadplant
Nemacladus sigmoideus G.T. Robbins
  sigmoid threadplant
Nemacladus twisselmannii J.T. Howell
  Twisselmann's threadplant
Parishella californica Gray
  Mojave dwarf
Porterella carnosula (Hook. & Arn.) Torr.
  fleshy porterella
Triodanis perfoliata (L.) Nieuwl.
  clasping Venus' lookingglass
Triodanis perfoliata var. biflora (Ruiz & Pavon) Bradley
  clasping Venus' lookingglass
Triodanis perfoliata var. perfoliata (L.) Nieuwl.
  clasping Venus' lookingglass

CANNABACEAE
Cannabis sativa L.
  marijuana
Humulus lupulus L.
  common hop
Humulus lupulus var. lupulus L.
  common hop
Humulus lupulus var. neomexicanus A. Nels. & Cockerell
  common hop

CAPPARACEAE
Cleome isomeris Greene
  bladderpod spiderflower
Cleome lutea Hook.
  yellow spiderflower
Cleome lutea var. lutea Hook.
  yellow spiderflower
Cleome platycarpa Torr.
  golden spiderflower
Cleome serrulata Pursh
  Rocky Mountain beeplant
Cleome sparsifolia S. Wats.
  fewleaf spiderflower
Cleomella brevipes S. Wats.
  shortstalk stinkweed
Cleomella hillmanii A. Nels.
  Hillman's stinkweed
Cleomella obtusifolia Torr. & Frem.
  Mojave cleomella
Cleomella parviflora Gray
  slender cleomella
Cleomella plocasperma S. Wats.
  twisted cleomella
Isomeris arborea Nutt.
  = Cleome isomeris
Koeberlinia spinosa Zucc.
  crown of thorns
Koeberlinia spinosa var. spinosa Zucc.
  crown of thorns
Koeberlinia spinosa var. tenuispina Kearney & Peebles
  crown of thorns
Oxystylis lutea Torr. & Frem.
  spiny caper
Polanisia dodecandra (L.) DC.
  roughseed clammyweed
Polanisia dodecandra ssp. dodecandra (L.) DC.
  redwhisker clammyweed
Polanisia dodecandra ssp. trachysperma (Torr. & Gray) Iltis
  sandyseed clammyweed
Wislizenia refracta Engelm.
  jackass clover
Wislizenia refracta ssp. californica (Greene) Keller
  spectacle fruit
Wislizenia refracta ssp. palmeri (Gray) Keller
  Palmer's wislizenia
Wislizenia refracta ssp. refracta Engelm.
  spectacle fruit

CAPRIFOLIACEAE
Leycesteria formosa Wallich
  Himalayan honeysuckle
Linnaea borealis L.
  twinflower
Linnaea borealis ssp. longiflora (Torr.) Hulten
  longtube twinflower
Lonicera caerulea L.
  sweetberry honeysuckle
Lonicera caerulea var. cauriana (Fern.) Boivin
  bluefly honeysuckle
Lonicera ciliosa (Pursh) Poir. ex DC.
  orange honeysuckle
Lonicera conjugialis Kellogg
  purpleflower honeysuckle
Lonicera etrusca Santi
  Etruscan honeysuckle
Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray
  California honeysuckle
Lonicera hispidula var. vacillans (Benth.) Gray
  pink honeysuckle
Lonicera interrupta Benth.
  chaparral honeysuckle
Lonicera involucrata Banks ex Spreng.
  twinberry honeysuckle
Lonicera involucrata var. ledebourii (Eschsch.) Zabel
Lonicera japonica Thunb.
  Japanese honeysuckle
Lonicera subspicata Hook. & Arn.
  southern honeysuckle
Lonicera subspicata var. denudata Rehd.
  Santa Barbara honeysuckle
Lonicera subspicata var. johnstonii Keck
  Johnston's honeysuckle
Lonicera subspicata var. subspicata Hook. & Arn.
  southern honeysuckle
Lonicera tatarica L.
  Tatarian honeysuckle
Lonicera utahensis S. Wats.
  Utah honeysuckle
Sambucus canadensis L.
  = Sambucus nigra ssp. canadensis
Sambucus cerulea Raf.
  = Sambucus nigra ssp. cerulea
Sambucus cerulea var. cerulea Raf.
  blue elderberry
Sambucus mexicana K. Presl ex DC.
  = Sambucus nigra ssp. canadensis
Sambucus nigra L.
  European black elder
Sambucus nigra ssp. canadensis (L.) R. Bolli
Sambucus nigra ssp. cerulea (Raf.) R. Bolli
Sambucus racemosa L.
  scarlet elderberry
Sambucus racemosa ssp. pubens var. arborescens (Torr. & Gray) Gray
  Pacific red elder
Sambucus racemosa ssp. pubens var. melanocarpa (Gray) McMinn
  black elderberry
Sambucus racemosa ssp. pubens var. microbotrys (Rydb.) Kearney & Peebles
  European red elderberry
Sambucus racemosa var. racemosa L.
Symphoricarpos acutus (Gray) Dieck
  sharpleaf snowberry
Symphoricarpos albus (L.) Blake
  common snowberry
Symphoricarpos albus var. laevigatus (Fern.) Blake
  common snowberry
Symphoricarpos hesperius G.N. Jones
  trailing snowberry
Symphoricarpos longiflorus Gray
  desert snowberry
Symphoricarpos mollis Nutt.
  creeping snowberry
Symphoricarpos oreophilus Gray
  whortleleaf snowberry
Symphoricarpos oreophilus var. utahensis (Rydb.) A. Nels.
  Utah snowberry
Symphoricarpos rotundifolius Gray
  roundleaf snowberry
Symphoricarpos rotundifolius var. parishii (Rydb.) Dempster
  Parish's snowberry
Viburnum ellipticum Hook.
  common viburnum
Viburnum tinus L.
  laurustinus

CARYOPHYLLACEAE
Achyronychia cooperi Torr. & Gray
  onyxflower
Agrostemma githago L.
  common corncockle
Arenaria aculeata S. Wats.
  prickly sandwort
Arenaria congesta Nutt.
  ballhead sandwort
Arenaria congesta var. charlestonensis Maguire
  Charleston sandwort
Arenaria congesta var. crassula Maguire
  ballhead sandwort
Arenaria congesta var. congesta Nutt.
  ballhead sandwort
Arenaria congesta var. simulans Maguire
  ballhead sandwort
Arenaria congesta var. subcongesta (S. Wats.) S. Wats.
  subcongesta sandwort
Arenaria congesta var. suffrutescens (Gray) B.L. Robins.
  suffrutescent sandwort
Arenaria kingii (S. Wats.) M.E. Jones
  King's sandwort
Arenaria kingii ssp. compacta (Coville) Maguire
  King's compact sandwort
Arenaria lanuginosa (Michx.) Rohrb.
  spreading sandwort
Arenaria lanuginosa ssp. saxosa (Gray) Maguire
  spreading sandwort
Arenaria macradenia S. Wats.
  Mojave sandwort
Arenaria macradenia ssp. macradenia var. arcuifolia Maguire
  Mojave sandwort
Arenaria macradenia ssp. ferrisiae Abrams
  Ferris' sandwort
Arenaria macradenia ssp. macradenia var. kuschei (Eastw.) Maguire
  Mojave sandwort
Arenaria macradenia ssp. macradenia S. Wats.
  Mojave sandwort
Arenaria macradenia ssp. macradenia var. macradenia S. Wats.
  Mojave sandwort
Arenaria paludicola B.L. Robins.
  marsh sandwort
Arenaria pumicola Coville & Leib.
  Crater Lake sandwort
Arenaria serpyllifolia L.
  thymeleaf sandwort
Arenaria ursina B.L. Robins.
  Bear Valley sandwort
Cardionema ramosissimum (Weinm.) A. Nels. & J.F. Macbr.
  sandcarpet
Cerastium arvense L.
  field chickweed
Cerastium arvense ssp. maximum (Hollick & Britt.) Ugborogho
  field chickweed
Cerastium arvense ssp. strictum (L.) Ugborogho
  field chickweed
Cerastium beeringianum Cham. & Schlecht.
  Bering chickweed
Cerastium beeringianum ssp. beeringianum Cham. & Schlecht.
  Bering chickweed
Cerastium beeringianum ssp. beeringianum var. beeringianum Cham. & Schlecht.
  Bering chickweed
Cerastium dichotomum L.
  forked chickweed
Cerastium fontanum Baumg.
  common chickweed
Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet
  big chickweed
Cerastium glomeratum Thuill.
  sticky chickweed
Dianthus armeria L.
  Deptford pink
Dianthus barbatus L.
  sweetwilliam
Dianthus deltoides L.
  maiden pink
Gypsophila paniculata L.
  babysbreath gypsophila
Herniaria hirsuta L.
  hairy rupturewort
Herniaria hirsuta ssp. cinerea (DC.) Coutinho
  hairy rupturewort
Holosteum umbellatum L.
  jagged chickweed
Loeflingia squarrosa Nutt.
  spreading pygmyleaf
Loeflingia squarrosa ssp. artemisiarum Barneby & Twisselmann
  spreading pygmyleaf
Loeflingia squarrosa ssp. squarrosa Nutt.
  spreading pygmyleaf
Lychnis coronaria (L.) Desr.
  rose campion
Minuartia californica (Gray) Mattf.
  California sandwort
Minuartia decumbens T.W. & J.P. Nelson
  lassicus stitchwort
Minuartia douglasii (Fenzl ex Torr. & Gray) Mattf.
  Douglas' stitchwort
Minuartia howellii (S. Wats.) Mattf.
  Howell's stitchwort
Minuartia nuttallii (Pax) Briq.
  Nuttall's sandwort
Minuartia nuttallii ssp. fragilis (Maguire & A. Holmgren) McNeill
  brittle sandwort
Minuartia nuttallii ssp. gracilis (B.L. Robins.) McNeill
  brittle sandwort
Minuartia nuttallii ssp. gregaria (Heller) McNeill
  brittle sandwort
Minuartia obtusiloba (Rydb.) House
  twinflower sandwort
Minuartia pusilla (S. Wats.) Mattf.
  annual sandwort
Minuartia pusilla var. diffusa (Maguire) McNeill
  annual sandwort
Minuartia pusilla var. pusilla (S. Wats.) Mattf.
  annual sandwort
Minuartia rosei (Maguire & Barneby) McNeill
  peanut stitchwort
Minuartia rossii (R. Br. ex Richards.) Graebn.
  Ross' sandwort
Minuartia rubella (Wahlenb.) Hiern
  beautiful sandwort
Moenchia erecta (L.) P.G. Gaertn., B. Mey. & Scherb.
  upright chickweed
Moehringia lateriflora (L.) Fenzl
  bluntleaf sandwort
Moehringia macrophylla (Hook.) Fenzl
  largeleaf sandwort
Paronychia ahartii Ertter
  Ahart's nailwort
Paronychia franciscana Eastw.
  San Francisco nailwort
Petrorhagia dubia (Raf.) G. Lopez & Romo
  hairypink
Petrorhagia nanteuilii (Burnat) P.W. Ball & Heywood
  proliferous pink
Petrorhagia prolifera (L.) P.W. Ball & Heywood
  childing pink
Polycarpon depressum Nutt.
  California manyseed
Polycarpon tetraphyllum (L.) L.
  fourleaf manyseed
Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartman
  tuber starwort
Sagina apetala Ard.
  annual pearlwort
Sagina decumbens (Ell.) Torr. & Gray
  beach pearlwort
Sagina decumbens ssp. occidentalis (S. Wats.) Crow
  western pearlwort
Sagina maxima Gray
  stickystem pearlwort
Sagina maxima ssp. crassicaulis (S. Wats.) Crow
  stickystem pearlwort
Saponaria officinalis L.
  bouncingbet
Sagina procumbens L.
  birdeye pearlwort
Sagina saginoides (L.) Karst.
  arctic pearlwort
Scleranthus annuus L.
  German knotgrass
Scopulophila rixfordii (Brandeg.) Munz & Johnston
  Rixford's rockwort
Silene antirrhina L.
  sleepy silene
Silene aperta Greene
  naked catchfly
Silene bernardina S. Wats.
  Palmer's catchfly
Silene bernardina ssp. bernardina S. Wats.
  Palmer's catchfly
Silene bernardina ssp. maguirei Bocquet
  Maguire's catchfly
Silene bernardina ssp. maguirei var. rigidula (B.L. Robins.) Tiehm
  mountain silene
Silene bernardina ssp. maguirei var. sierrae (C.L. Hitchc. & Maguire) Bocquet
  Palmer's catchfly
Silene bridgesii Rohrb.
  Bridges' catchfly
Silene californica Dur.
  Indian pink
Silene campanulata S. Wats.
  Red Mountain catchfly
Silene campanulata ssp. campanulata S. Wats.
  Red Mountain catchfly
Silene campanulata ssp. glandulosa C.L. Hitchc. & Maguire
  Red Mountain catchfly
Silene campanulata ssp. greenei (S. Wats.) C.L. Hitchc. & Maguire
  Greene's catchfly
Silene conoidea L.
  weed silene
Silene dichotoma Ehrh.
  dichotoma silene
Silene douglasii Hook.
  Douglas's campion
Silene douglasii var. douglasii Hook.
  Douglas's campion
Silene gallica L.
  common catchfly
Silene grayi S. Wats.
  Maui catchfly
Silene hookeri Nutt.
  Hooker's silene
Silene hookeri ssp. bolanderi (Gray) Abrams
  Bolander's silene
Silene hookeri ssp. hookeri Nutt.
  Hooker's silene
Silene hookeri ssp. pulverulenta (M.E. Peck) C.L. Hitchc. & Maguire
  Hooker's silene
Silene invisa C.L. Hitchc. & Maguire
  red fir catchfly
Silene laciniata Cav.
  Mexican campion
Silene latifolia Poir.
  bladder campion
Silene laciniata ssp. major var. angustifolia C.L. Hitchc. & Maguire
  cardinal catchfly
Silene latifolia ssp. alba (P. Mill.) Greuter & Burdet
  bladder campion
Silene laciniata ssp. major var. latifolia C.L. Hitchc. & Maguire
  cardinal catchfly
Silene laciniata ssp. major C.L. Hitchc. & Maguire
  cardinal catchfly
Silene lemmonii S. Wats.
  Lemmon's catchfly
Silene marmorensis Kruckeberg
  Marble Mountain catchfly
Silene menziesii Hook.
  Menzies' campion
Silene menziesii ssp. dorrii (Kellogg) C.L. Hitchc. & Maguire
  Dorr's campion
Silene menziesii ssp. menziesii Hook.
  Menzies' campion
Silene menziesii ssp. menziesii var. menziesii Hook.
  Menzies' campion
Silene menziesii ssp. menziesii var. viscosa (Greene) C.L. Hitchc. & Maguire
  Menzies' campion
Silene multinervia S. Wats.
  manynerve catchfly
Silene noctiflora L.
  nightflowering silene
Silene nuda (S. Wats.) C.L. Hitchc. & Maguire
  barestem silene
Silene nuda ssp. insectivora (Henderson) C.L. Hitchc. & Maguire
  insecteating silene
Silene nuda ssp. nuda (S. Wats.) C.L. Hitchc. & Maguire
  western fringed catchfly
Silene occidentalis S. Wats.
  western catchfly
Silene occidentalis ssp. longistipitata C.L. Hitchc. & Maguire
  western catchfly
Silene occidentalis ssp. occidentalis S. Wats.
  western catchfly
Silene oregana S. Wats.
  Oregon silene
Silene parishii S. Wats.
  Parish's catchfly
Silene parishii var. latifolia C.L. Hitchc. & Maguire
  Parish's catchfly
Silene parishii var. parishii S. Wats.
  Parish's catchfly
Silene parishii var. viscida C.L. Hitchc. & Maguire
  Parish's catchfly
Silene sargentii S. Wats.
  Sargent's catchfly
Silene scouleri Hook.
  Scouler's campion
Silene scouleri ssp. scouleri var. pacifica (Eastw.) C.L. Hitchc.
  Scouler's campion
Silene scouleri ssp. scouleri Hook.
  Scouler's campion
Silene scouleri ssp. scouleri var. scouleri Hook.
  Scouler's campion
Silene suksdorfii B.L. Robins.
  Suksdorf's silene
Silene uralensis (Rupr.) Bocquet
  apetalous catchfly
Silene uralensis ssp. montana (S. Wats.) McNeill
  apetalous catchfly
Silene verecunda S. Wats.
  San Francisco campion
Silene verecunda ssp. andersonii (Clokey) C.L. Hitchc. & Maguire
  Anderson's campion
Silene verecunda ssp. platyota var. eglandulosa C.L. Hitchc. & Maguire
  San Francisco campion
Silene verecunda ssp. platyota (S. Wats.) C.L. Hitchc. & Maguire
  San Francisco campion
Silene verecunda ssp. platyota var. platyota (S. Wats.) Jepson
  San Francisco campion
Silene verecunda ssp. verecunda S. Wats.
  San Francisco campion
Silene vulgaris (Moench) Garcke
  maidenstears
Spergula arvense L.
  corn spurry
Spergularia atrosperma R.P. Rossb.
  blackseed sandspurry
Spergularia bocconii (Scheele) Foucaud ex Merino
  Boccone's sandspurry
Spergularia canadensis (Pers.) G. Don
  Canadian sandspurry
Spergularia canadensis var. occidentalis R.P. Rossb.
  western sandspurry
Spergularia macrotheca (Hornem.) Heynh.
  sticky sandspurry
Spergularia maritima (All.) Chiov.
  media sandspurry
Spergularia macrotheca var. leucantha (Greene) B.L. Robins.
  sticky sandspurry
Spergularia macrotheca var. longistyla R.P. Rossb.
  sticky sandspurry
Spergularia macrotheca var. macrotheca (Hornem.) Heynh.
  sticky sandspurry
Spergularia platensis (Camb.) Fenzl
  La Plata sandspurry
Spergularia rubra (L.) J.& K. Presl
  red sandspurry
Spergularia salina J.& K. Presl
  salt sandspurry
Spergularia salina var. salina J.& K. Presl
  salt sandspurry
Spergularia salina var. tenuis (Greene) Jepson
  salt sandspurry
Spergularia villosa (Pers.) Camb.
  hairy sandspurry
Stellaria borealis Bigelow
  boreal starwort
Stellaria borealis ssp. borealis Bigelow
  boreal starwort
Stellaria borealis ssp. sitchana (Steud.) Piper
  Sitka starwort
Stellaria calycantha (Ledeb.) Bong.
  northern starwort
Stellaria crispa Cham. & Schlecht.
  curled starwort
Stellaria graminea L.
  grasslike starwort
Stellaria jamesiana Torr.
  = Pseudostellaria jamesiana
Stellaria littoralis Torr.
  beach starwort
Stellaria longipes Goldie
  longstalk starwort
Stellaria longipes ssp. longipes Goldie
  longstalk starwort
Stellaria media (L.) Vill.
  common chickweed
Stellaria nitens Nutt.
  shiny chickweed
Stellaria obtusa Engelm.
  Rocky Mountain chickweed
Stellaria umbellata Turcz. ex Kar. & Kir.
  umbrella starwort
Vaccaria hispanica (P. Mill.) Rauschert
  cow soapwort
Velezia rigida L.
  velezia

CELASTRACEAE
Euonymus occidentalis Nutt. ex Torr.
  western wahoo
Euonymus occidentalis var. occidentalis Nutt. ex Torr.
  western wahoo
Euonymus occidentalis var. parishii (Trel.) Jepson
  western wahoo
Mortonia scabrella var. utahensis Coville ex Gray
  = Mortonia utahensis
Mortonia utahensis (Coville ex Gray) A. Nels.
  Utah mortonia
Paxistima myrsinites (Pursh) Raf.
  boxleaf myrtle

CERATOPHYLLACEAE
Ceratophyllum demersum L.
  coon's tail

CHENOPODIACEAE
Allenrolfea occidentalis (S. Wats.) Kuntze
  iodinebush
Aphanisma blitoides Nutt. ex Moq.
  San Diego coastalcreeper
Arthrocnemum subterminale (Parish) Standl.
  Parish's glasswort
Atriplex argentea Nutt.
  silverscale saltbush
Atriplex argentea ssp. argentea Nutt.
  silverscale saltbush
Atriplex argentea ssp. expansa (S. Wats.) Hall & Clements
  silverscale saltbush
Atriplex californica Moq.
  California saltbush
Atriplex canescens (Pursh) Nutt.
  fourwing saltbush
Atriplex canescens var. canescens (Pursh) Nutt.
  fourwing saltbush
Atriplex confertifolia (Torr. & Frem.) S. Wats.
  shadscale saltbush
Atriplex cordulata Jepson
  heartscale
Atriplex coronata S. Wats.
  crownscale
Atriplex coulteri (Moq.) D. Dietr.
  Coulter's saltbush
Atriplex coronata var. notatior Jepson
  crownscale
Atriplex elegans (Moq.) D. Dietr.
  wheelscale saltbush
Atriplex elegans var. fasciculata (S. Wats.) M.E. Jones
  wheelscale saltbush
Atriplex falcata (M.E. Jones) Standl.
  sickle saltbush
Atriplex fruticulosa Jepson
  ball saltbush
Atriplex gmelinii C.A. Mey. ex Bong.
  Gmelin's saltbush
Atriplex hortensis L.
  garden orache
Atriplex hymenelytra (Torr.) S. Wats.
  desertholly
Atriplex joaquiniana A. Nels.
Atriplex lentiformis (Torr.) S. Wats.
  big saltbush
Atriplex leucophylla (Moq.) D. Dietr.
  beach saltbush
Atriplex lentiformis ssp. breweri (S. Wats.) Hall & Clements
  quailbush
Atriplex lentiformis ssp. lentiformis (Torr.) S. Wats.
  big saltbush
Atriplex lindleyi Moq.
  Lindley's saltbush
Atriplex linearis S. Wats.
  thinleaf fourwing saltbush
Atriplex micrantha Ledeb.
  twoscale saltbush
Atriplex nummularia Lindl.
  bluegreen saltbush
Atriplex pacifica A. Nels.
  Davidson's saltbush
Atriplex parishii S. Wats.
  Parish's saltbush
Atriplex parryi S. Wats.
  Parry's saltbush
Atriplex patula L.
  spear saltbush
Atriplex patula ssp. patula L.
  spear saltbush
Atriplex phyllostegia (Torr. ex S. Wats.) S. Wats.
  leafcover saltweed
Atriplex polycarpa (Torr.) S. Wats.
  cattle saltbush
Atriplex prostrata Boucher ex DC.
  triangle orache
Atriplex pusilla (Torr. ex S. Wats.) S. Wats.
  smooth saltbush
Atriplex rosea L.
  tumbling saltweed
Atriplex semibaccata R. Br.
  Australian saltbush
Atriplex serenana A. Nels.
  bractscale
Atriplex serenana var. davidsonii (Standl.) Munz
  Davidson's bractscale
Atriplex serenana var. serenana A. Nels.
  bractscale
Atriplex spinifera J.F. Macbr.
  spinescale saltbush
Atriplex suberecta I. Verd.
  peregrine saltbush
Atriplex torreyi (S. Wats.) S. Wats.
  Torrey's saltbush
Atriplex truncata (Torr. ex S. Wats.) Gray
  wedgescale saltbush
Atriplex tularensis Coville
  Tulare saltbush
Atriplex vallicola Hoover
  Lost Hills saltbush
Atriplex vesicaria Heward ex Benth.
  aboriginal saltbush
Atriplex watsonii A. Nels.
  Watson's saltbush
Bassia hyssopifolia (Pallas) Kuntz
  fivehorn smotherweed
Beta vulgaris L.
  common beet
Beta vulgaris ssp. maritima (L.) Arcang.
  sea beet
Chenopodium album L.
  lambsquarters
Chenopodium album var. album L.
  lambsquarters
Chenopodium album var. missouriense (Aellen) I.J. Bassett & C.W. Crompton
  Missouri lambsquarters
Chenopodium ambrosioides L.
  Mexican tea
Chenopodium ambrosioides var. anthelminticum (L.) Aellen
  = Chenopodium ambrosioides var. ambrosioides
Chenopodium ambrosioides var. ambrosioides L.
  Mexican tea
Chenopodium atrovirens Rydb.
  pinyon goosefoot
Chenopodium berlandieri Moq.
  pitseed goosefoot
Chenopodium berlandieri var. sinuatum (J. Murr) H.A. Wahl
  pitseed goosefoot
Chenopodium berlandieri var. zschackii (J. Murr) J. Murr ex Aschers.
  Zschack's goosefoot
Chenopodium botrys L.
  Jerusalem oak goosefoot
Chenopodium carnosulum Moq.
  ridged goosefoot
Chenopodium californicum (S. Wats.) S. Wats.
  California goosefoot
Chenopodium capitatum (L.) Ambrosi
  blite goosefoot
Chenopodium carnosulum var. patagonicum (Phil.) H.A. Wahl
  ridged goosefoot
Chenopodium chenopodioides (L.) Aellen
Chenopodium desiccatum A. Nels.
  aridland goosefoot
Chenopodium fremontii S. Wats.
  Fremont's goosefoot
Chenopodium fremontii var. fremontii S. Wats.
  Fremont's goosefoot
Chenopodium hians Standl.
  hians goosefoot
Chenopodium humile Hook.
  marshland goosefoot
Chenopodium incanum (S. Wats.) Heller
  mealy goosefoot
Chenopodium incanum var. incanum (S. Wats.) Heller
  mealy goosefoot
Chenopodium incanum var. occidentale Crawford
  mealy goosefoot
Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats.
  narrowleaf goosefoot
Chenopodium macrospermum Hook. f.
  largeseed goosefoot
Chenopodium macrospermum var. farinosum (S. Wats.) J.T. Howell
  largeseed goosefoot
Chenopodium macrospermum var. halophilum (Phil.) Standl.
  saltloving goosefoot
Chenopodium multifidum L.
  cutleaf goosefoot
Chenopodium murale L.
  nettleleaf goosefoot
Chenopodium nevadense Standl.
  Nevada goosefoot
Chenopodium opulifolium Schrad. ex Koch & Ziz
  seaport goosefoot
Chenopodium overi Aellen
  Over's goosefoot
Chenopodium polyspermum L.
  manyseed goosefoot
Chenopodium pratericola Rydb.
  desert goosefoot
Chenopodium pumilio R. Br.
  clammy goosefoot
Chenopodium rubrum L.
  red goosefoot
Chenopodium salinum Standl.
  Rocky Mountain goosefoot
Chenopodium simplex (Torr.) Raf.
  mapleleaf goosefoot
Chenopodium strictum Roth
  lateflowering goosefoot
Chenopodium strictum ssp. glaucophyllum (Aellen) Aellen & Just.
  lateflowering goosefoot
Chenopodium vulvaria L.
  stinking goosefoot
Corispermum hyssopifolium L.
  common bugseed
Cycloloma atriplicifolium (Spreng.) Coult.
  winged pigweed
Eurotia lanata (Pursh) Moq.
  = Krascheninnikovia lanata
Grayia spinosa (Hook.) Moq.
  spiny hopsage
Halogeton glomeratus (Bieb.) C.A. Mey.
  halogeton
Kochia americana S. Wats.
  greenmolly
Kochia californica S. Wats.
  rusty molly kochia
Kochia scoparia (L.) Schrad.
  common kochia
Krascheninnikovia lanata (Pursh) Guldenstaedt
  winterfat
Monolepis nuttalliana (J.A. Schultes) Greene
  Nuttall's povertyweed
Monolepis pusilla Torr. ex S. Wats.
  small monolepis
Monolepis spathulata Gray
  beaver monolepis
Nitrophila mohavensis Munz & Roos
  Amargosa alkaliplant
Nitrophila occidentalis (Moq.) S. Wats.
  western miterwort
Salicornia bigelovii Torr.
  dwarf saltwort
Salsola kali L.
  prickly Russian thistle
Salicornia maritima Wolff & Jefferies
  slender grasswort
Salsola paulsenii Litv.
  barbwire Russian thistle
Salicornia rubra A. Nels.
  red swampfire
Salsola soda L.
  oppositeleaf Russian thistle
Sarcocornia utahensis (Tidestrom) A.J. Scott
  Utah swampfire
Sarcobatus vermiculatus (Hook.) Torr.
  greasewood
Salicornia virginica L.
  Virginia glasswort
Spinacia oleracea L.
  spinach
Suaeda californica S. Wats.
  California seablite
Suaeda calceoliformis (Hook.) Moq.
  Pursh seepweed
Suaeda californica var. californica S. Wats.
  California seablite
Suaeda esteroa Ferren & Whitmore
  seablite
Suaeda moquinii (Torr.) Greene
  Mojave seablite
Suaeda taxifolia (Standl.) Standl.
  seepweed

CISTACEAE
Cistus incanus L.
  hairy rockrose
Cistus incanus ssp. corsicus (Loisel.) Heywood
  hairy rockrose
Cistus incanus ssp. incanus L.
  hairy rockrose
Cistus ladaniferus L.
  gum rockrose
Helianthemum greenei B.L. Robins.
  island rushrose
Helianthemum scoparium Nutt.
  Amador rushrose
Tuberaria guttata (L.) Fourr.
  European frostweed

CLUSIACEAE
Hypericum anagalloides Cham. & Schlecht.
  trailing St. Johnswort
Hypericum calycinum L.
  Aaron's beard
Hypericum canariense L.
  Canary Island St. Johnswort
Hypericum concinnum Benth.
  goldwire
Hypericum formosum ssp. scouleri (Hook.) C.L. Hitchc.
  = Hypericum scouleri ssp. scouleri
Hypericum mutilum L.
  dwarf St. Johnswort
Hypericum perforatum L.
  common St. Johnswort
Hypericum scouleri Hook.
  Scouler's St. Johnswort
Hypericum scouleri ssp. scouleri Hook.
  Scouler's St. Johnswort

COMMELINACEAE
Tradescantia fluminensis Vell.
  smallleaf spiderwort
Tradescantia virginiana L.
  Virginia spiderwort

COMPOSITAE
Acamptopappus shockleyi Gray
  Shockley's goldenhead
Acamptopappus sphaerocephalus (Harvey & Gray ex Gray) Gray
  rayless goldenhead
Acamptopappus sphaerocephalus var. hirtellus Blake
  rayless goldenhead
Acamptopappus sphaerocephalus var. sphaerocephalus (Harvey & Gray ex Gray) Gray
  rayless goldenhead
Achillea borealis Bong.
  = Achillea millefolium var. borealis
Achillea lanulosa Nutt.
  = Achillea millefolium var. occidentalis
Achillea millefolium L.
  common yarrow
Achillea millefolium var. alpicola (Rydb.) Garrett
  common yarrow
Achillea millefolium var. arenicola (Heller) Nobs
  common yarrow
Achillea millefolium var. borealis (Bong.) Farw.
  boreal yarrow
Achillea millefolium var. californica (Pollard) Jepson
  California yarrow
Achillea millefolium var. gigantea (Pollard) Nobs
  giant yarrow
Achillea millefolium var. millefolium L.
  common yarrow
Achillea millefolium var. occidentalis DC.
  western yarrow
Achillea millefolium var. pacifica (Rydb.) G.N. Jones
  Pacific yarrow
Achillea millefolium var. puberula (Rydb.) Nobs
  common yarrow
Achyrachaena mollis Schauer
  blow wives
Acourtia microcephala DC.
  sacapellote
Acroptilon repens (L.) DC.
  hardheads
Adenocaulon bicolor Hook.
  American trailplant
Adenophyllum cooperi (Gray) Strother
  Cooper's dogweed
Adenophyllum porophylloides (Gray) Strother
  San Felipe dogweed
Ageratina adenophora (Spreng.) King & H.E. Robins.
  sticky snakeroot
Ageratina herbacea (Gray) King & H.E. Robins.
  fragrant snakeroot
Ageratina occidentalis (Hook.) King & H.E. Robins.
  western snakeroot
Ageratina shastensis (Taylor & Stebbins) King & H.E. Robins.
  Shasta snakeroot
Ageratum conyzoides L.
  tropical whiteweed
Agoseris apargioides (Less.) Greene
  woolly goat chicory
Agoseris apargioides var. apargioides (Less.) Greene
  woolly goat chicory
Agoseris apargioides var. eastwoodiae (Fedde) Munz
  woolly goat chicory
Agoseris apargioides var. maritima (Sheldon) Q. Jones
Agoseris aurantiaca (Hook.) Greene
  orange agoseris
Agoseris aurantiaca var. aurantiaca (Hook.) Greene
  orange agoseris
Agoseris elata (Nutt.) Greene
  tall agoseris
Agoseris glauca (Pursh) Raf.
  pale agoseris
Agoseris glauca var. glauca (Pursh) Raf.
  pale agoseris
Agoseris glauca var. laciniata (D.C. Eat.) Smiley
  false agoseris
Agoseris glauca var. monticola (Greene) Q. Jones ex Cronq.
  pale agoseris
Agoseris grandiflora (Nutt.) Greene
  bigflower agoseris
Agoseris heterophylla (Nutt.) Greene
  annual agoseris
Agoseris heterophylla var. crenulata Jepson
  annual agoseris
Agoseris heterophylla var. heterophylla (Nutt.) Greene
  annual agoseris
Agoseris heterophylla var. turgida (Hall) Jepson
  annual agoseris
Agoseris retrorsa (Benth.) Greene
  spearleaf agoseris
Almutaster pauciflorus (Nutt.) A.& D. Love
Amberboa moschata (L.) DC.
  sweetsultan
Amblyopappus pusillus Hook. & Arn.
  dwarf coastweed
Ambrosia acanthicarpa Hook.
  flatspine burr ragweed
Ambrosia ambrosioides (Cav.) Payne
  ambrosia leaf burr ragweed
Ambrosia artemisiifolia L.
  annual ragweed
Ambrosia chamissonis (Less.) Greene
  silver burr ragweed
Ambrosia chenopodiifolia (Benth.) Payne
  San Diego burr ragweed
Ambrosia confertiflora DC.
  weakleaf burr ragweed
Ambrosia dumosa (Gray) Payne
  white burrobush
Ambrosia eriocentra (Gray) Payne
  woolly fruit burr ragweed
Ambrosia ilicifolia (Gray) Payne
  hollyleaf burr ragweed
Ambrosia psilostachya DC.
  Cuman ragweed
Ambrosia pumila (Nutt.) Gray
  dwarf burr ragweed
Ambrosia trifida L.
  great ragweed
Amphipappus fremontii Torr. & Gray
  Fremont's chaffbush
Amphipappus fremontii ssp. fremontii Torr. & Gray
  Fremont's chaffbush
Amphipappus fremontii ssp. spinosus (A. Nels.) Keck
  Fremont's chaffbush
Anaphalis margaritacea (L.) Benth. & Hook. f.
  western pearlyeverlasting
Ancistrocarphus filagineus Gray
  false neststraw
Anisocoma acaulis Torr. & Gray
  scalebud
Antennaria argentea Benth.
  silver pussytoes
Antennaria corymbosa E. Nels.
  flattop pussytoes
Antennaria densa Greene
  = Antennaria media
Antennaria dimorpha (Nutt.) Torr. & Gray
  low pussytoes
Antennaria flagellaris (Gray) Gray
  whip pussytoes
Antennaria geyeri Gray
  pinewoods pussytoes
Antennaria howellii Greene
  Howell's pussytoes
Antennaria howellii ssp. howellii Greene
  Howell's pussytoes
Antennaria luzuloides Torr. & Gray
  rush pussytoes
Antennaria marginata Greene
  whitemargin pussytoes
Antennaria media Greene
  Rocky Mountain pussytoes
Antennaria microphylla Rydb.
  littleleaf pussytoes
Antennaria racemosa Hook.
  raceme pussytoes
Antennaria rosea Greene
  rosy pussytoes
Antennaria rosea ssp. confinis (Greene) Bayer
  rosy pussytoes
Antennaria rosea ssp. rosea Greene
  rosy pussytoes
Antennaria suffrutescens Greene
  evergreen everlasting
Antennaria umbrinella Rydb.
  umber pussytoes
Anthemis arvensis L.
  corn chamomile
Anthemis cotula L.
  stinking chamomile
Anthemis tinctoria L.
  golden chamomile
Antheropeas lanosum (Gray) Rydb.
  white easterbonnets
Antheropeas wallacei (Gray) Rydb.
  woolly easterbonnets
Arctium lappa L.
  greater burrdock
Arctium minus Bernh.
  lesser burrdock
Arctotis stoechadifolia Berg.
  African daisy
Argyranthemum foeniculum (Willd.) Schultz-Bip.
Arnica X diversifolia Greene (pro sp.)
  rayless arnica
Arnica amplexicaulis Nutt.
  clasping arnica
Arnica cernua T.J. Howell
  serpentine arnica
Arnica chamissonis Less.
  chamisso arnica
Arnica chamissonis ssp. foliosa (Nutt.) Maguire
  chamisso arnica
Arnica chamissonis ssp. foliosa var. andina (Nutt.) Ediger & Barkl.
  chamisso arnica
Arnica chamissonis ssp. foliosa var. bernardina (Greene) Maguire
  chamisso arnica
Arnica chamissonis ssp. foliosa var. incana (Gray) Hulten
  chamisso arnica
Arnica cordifolia Hook.
  heartleaf arnica
Arnica discoidea Benth.
  rayless arnica
Arnica fulgens Pursh
  foothill arnica
Arnica gracilis Rydb.
  smallhead arnica
Arnica latifolia Bong.
  broadleaf arnica
Arnica longifolia D.C. Eat.
  spearleaf arnica
Arnica mollis Hook.
  hairy arnica
Arnica nevadensis Gray
  Nevada arnica
Arnica parryi Gray
  Parry's arnica
Arnica parryi ssp. parryi Gray
  Parry's arnica
Arnica parryi ssp. sonnei (Greene) Maguire
  Sonne's arnica
Arnica rydbergii Greene
  Rydberg's arnica
Arnica sororia Greene
  twin arnica
Arnica spathulata Greene
  Klamath arnica
Arnica venosa Hall
  Shasta County arnica
Arnica viscosa Gray
  Mt. Shasta arnica
Artemisia arbuscula Nutt.
  low sagebrush
Artemisia arbuscula ssp. arbuscula Nutt.
  gray low sagebrush
Artemisia arctica Less.
  boreal sagebrush
Artemisia arctica ssp. arctica Less.
  boreal sagebrush
Artemisia biennis Willd.
  biennial wormwood
Artemisia bigelovii Gray
  Bigelow's sagebrush
Artemisia californica Less.
  California sagebrush
Artemisia campestris L.
  field sagewort
Artemisia campestris ssp. borealis (Pallas) Hall & Clements
  northern sagewort
Artemisia campestris ssp. borealis var. wormskioldii (Bess. ex Hook.) Cronq.
  Wormskiold's wormwood
Artemisia cana Pursh
  silver sagebrush
Artemisia cana ssp. bolanderi (Gray) G.H. Ward
  Bolander's silver sagebrush
Artemisia cana ssp. cana Pursh
  silver sagebrush
Artemisia douglasiana Bess.
  California mugwort
Artemisia dracunculus L.
  false tarragon
Artemisia furcata Bieb.
  forked sagewort
Artemisia ludoviciana Nutt.
  estafiate
Artemisia ludoviciana ssp. albula (Woot.) Keck
  white sagebrush
Artemisia ludoviciana ssp. candicans (Rydb.) Keck
  gray sagewort
Artemisia ludoviciana ssp. incompta (Nutt.) Keck
  mountain sagewort
Artemisia ludoviciana ssp. ludoviciana Nutt.
  estafiate
Artemisia michauxiana Bess.
  Michaux's sagebrush
Artemisia nesiotica Raven
  island sagebrush
Artemisia nova A. Nels.
  black sagebrush
Artemisia palmeri Gray
  San Diego sage
Artemisia pycnocephala (Less.) DC.
  beach wormwood
Artemisia rothrockii Gray
  timberline sagebrush
Artemisia spinescens D.C. Eat.
  bud sagebrush
Artemisia suksdorfii Piper
  coastal wormwood
Artemisia tridentata Nutt.
  big sagebrush
Artemisia tridentata ssp. tridentata Nutt.
  basin big sagebrush
Artemisia tridentata ssp. vaseyana (Rydb.) Beetle
  mountain big sagebrush
Artemisia tripartita Rydb.
  threetip sagebrush
Artemisia tripartita ssp. tripartita Rydb.
  Idaho threetip sagebrush
Aster ascendens Lindl.
  Chile aster
Aster brickellioides var. brickellioides Greene
  brickellbush aster
Aster campestris Nutt.
  meadow aster
Aster campestris var. bloomeri (Gray) Gray
  Bloomer's aster
Aster chilensis Nees
  creeping aster
Aster chilensis var. chilensis Nees
  creeping aster
Aster chilensis var. invenustus (Greene) Jepson
  Pacific aster
Aster chilensis var. medius Jepson
  Pacific aster
Aster defoliatus Parish
  San Bernardino aster
Aster eatonii (Gray) T.J. Howell
  Eaton's aster
Aster foliaceus Lindl. ex DC.
  alpine leafybract aster
Aster foliaceus var. apricus Gray
  leafybract aster
Aster foliaceus var. canbyi Gray
  Canby's aster
Aster foliaceus var. parryi (D.C. Eat.) Gray
  Parry's aster
Aster greatae Parish
  Greata's aster
Aster hendersonii Fern.
  Lyall aster
Aster integrifolius Nutt.
  thickstem aster
Aster laevis L.
  smooth aster
Aster laevis var. geyeri Gray
  Geyer's smooth aster
Aster lanceolatus Willd.
  white panicle aster
Aster lanceolatus ssp. hesperius (Gray) Semple & Chmielewski
  Siskiyou aster
Aster ledophyllus (Gray) Gray
  Cascade aster
Aster lentus Greene
  Suisun Marsh aster
Aster occidentalis (Nutt.) Torr. & Gray
  western aster
Aster occidentalis var. delectabilis (Hall) Ferris
  delectable aster
Aster occidentalis var. intermedius Gray
  intermediate aster
Aster occidentalis var. occidentalis (Nutt.) Torr. & Gray
  western aster
Aster occidentalis var. parishii (Gray) Ferris
  Parish's aster
Aster occidentalis var. yosemitanus (Gray) Cronq.
  Yosemite aster
Aster oregonensis ssp. oregonensis (Nutt.) Cronq.
  Oregon aster
Aster radulinus Gray
  roughleaf aster
Aster shastensis (Gray) Gray
  = Machaeranthera canescens ssp. canescens var. shastensis
Aster subspicatus Nees
  Douglas aster
Aster subspicatus var. subspicatus Nees
  leafybract aster
Aster subulatus Michx.
  annual saltmarsh aster
Aster subulatus var. ligulatus Shinners
  annual saltmarsh aster
Atrichoseris platyphylla (Gray) Gray
  parachute plant
Baccharis brachyphylla Gray
  shortleaf baccharis
Baccharis douglasii DC.
  saltmarsh baccharis
Baccharis emoryi Gray
  Emory's baccharis
Baccharis pilularis DC.
  coyotebrush
Baccharis pilularis var. pilularis DC.
  coyotebrush
Baccharis plummerae Gray
  Plummer's baccharis
Baccharis salicifolia (Ruiz & Pavon) Pers.
  mule's fat
Baccharis sarothroides Gray
  desertbroom
Baccharis sergiloides Gray
  squaw waterweed baccharis
Baccharis vanessae Beauchamp
  Encinitis falsewillow
Bahia dissecta (Gray) Britt.
  ragleaf bahia
Baileya multiradiata Harvey & Gray ex Gray
  desert marigold
Baileya pauciradiata Harvey & Gray ex Gray
  laxflower
Baileya pleniradiata Harvey & Gray ex Gray
  woolly desert marigold
Balsamita major Desf.
  costmary
Balsamorhiza X terebinthacea (Hook.) Nutt. (pro sp.)
  balsamroot
Balsamorhiza deltoidea Nutt.
  deltoid balsamroot
Balsamorhiza hookeri (Hook.) Nutt.
  Hooker's balsamroot
Balsamorhiza hookeri var. hookeri (Hook.) Nutt.
  Hooker's balsamroot
Balsamorhiza hookeri var. neglecta (Sharp) Cronq.
  neglected balsamroot
Balsamorhiza incana Nutt.
  hoary balsamroot
Balsamorhiza macrolepis Sharp
  California balsamroot
Balsamorhiza macrolepis var. macrolepis Sharp
  California balsamroot
Balsamorhiza macrolepis var. platylepis (Sharp) Ferris
  California balsamroot
Balsamorhiza sagittata (Pursh) Nutt.
  arrowleaf balsamroot
Balsamorhiza sericea W.A. Weber
  silky balsamroot
Balsamorhiza serrata A. Nels. & J.F. Macbr.
  serrate balsamroot
Bebbia juncea (Benth.) Greene
  sweetbush
Bebbia juncea var. aspera Greene
  sweetbush
Bellis perennis L.
  lawndaisy
Bidens cernua L.
  nodding beggartick
Bidens connata Muhl. ex Willd.
  purplestem beggarticks
Bidens frondosa L.
  devil's beggartick
Bidens laevis (L.) B.S.P.
  smooth beggartick
Bidens pilosa L.
  Spanish needles
Bidens vulgata Greene
  big devils beggartick
Blennosperma bakeri Heiser
  Baker's stickyseed
Blennosperma nanum (Hook.) Blake
  common stickyseed
Blennosperma nanum var. nanum (Hook.) Blake
  common stickyseed
Blennosperma nanum var. robustum J.T. Howell
  common stickyseed
Blepharipappus scaber Hook.
  rough eyelashweed
Blepharipappus scaber ssp. laevis (Gray) Keck
  rough eyelashweed
Blepharipappus scaber ssp. scaber Hook.
  rough eyelashweed
Blepharizonia plumosa (Kellogg) Greene
  big tarweed
Blepharizonia plumosa ssp. plumosa (Kellogg) Greene
  big tarweed
Blepharizonia plumosa ssp. viscida Keck
  big tarweed
Brachyactis frondosa (Nutt.) Gray
  leafy rayless aster
Brickellia arguta B.L. Robins.
Brickellia arguta var. arguta B.L. Robins.
Brickellia atractyloides Gray
  spearleaf brickellbush
Brickellia atractyloides var. atractyloides Gray
  spearleaf brickellia
Brickellia californica (Torr. & Gray) Gray
  California brickellbush
Brickellia californica var. californica (Torr. & Gray) Gray
  California brickellbush
Brickellia californica var. jepsonii B.L. Robins.
  Jepson's brickellbush
Brickellia desertorum Coville
Brickellia frutescens Gray
  shrubby brickellbush
Brickellia grandiflora (Hook.) Nutt.
  tasselflower brickellbush
Brickellia greenei Gray
  Greene brickellbush
Brickellia incana Gray
  woolly brickellbush
Brickellia knappiana E. Drew
  Knapp brickellbush
Brickellia longifolia S. Wats.
  longleaf brickellbush
Brickellia longifolia var. multiflora (Kellogg) Cronq.
Brickellia microphylla (Nutt.) Gray
  littleleaf brickellbush
Brickellia microphylla var. microphylla (Nutt.) Gray
  littleleaf brickellbush
Brickellia microphylla var. watsonii (B.L. Robins.) Welsh
  Watson's brickellbush
Brickellia nevinii Gray
  Nevin's brickellbush
Brickellia oblongifolia Nutt.
  Mojave brickellbush
Brickellia oblongifolia var. linifolia (D.C. Eat.) B.L. Robins.
  narrowleaf brickellbush
Cacaliopsis nardosmia (Gray) Gray
  silvercrown
Calendula arvensis L.
  field marigold
Calendula officinalis L.
  pot marigold
Calycadenia fremontii Gray
  Fremont's western rosinweed
Calycadenia hispida ssp. hispida (Greene) Greene
  hispid western rosinweed
Calycadenia hooveri G.D. Carr
  Hoover's western rosinweed
Calycadenia mollis Gray
  soft western rosinweed
Calycadenia multiglandulosa DC.
  sticky western rosinweed
Calycadenia oppositifolia (Greene) Greene
  Butte County western rosinweed
Calycadenia pauciflora Gray
  smallflower western rosinweed
Calycadenia spicata (Greene) Greene
  spiked western rosinweed
Calycadenia truncata DC.
  Oregon western rosinweed
Calycadenia truncata ssp. microcephala Hall ex Keck
  Oregon western rosinweed
Calycadenia truncata ssp. scabrella (E. Drew) Keck
  Oregon western rosinweed
Calycadenia truncata ssp. truncata DC.
  Oregon western rosinweed
Calycadenia villosa DC.
  dwarf western rosinweed
Calycoseris parryi Gray
  yellow tackstem
Calycoseris wrightii Gray
  white tackstem
Carduus acanthoides L.
  spiny plumeless thistle
Carduus nutans L.
  nodding plumeless thistle
Carduus nutans ssp. leiophyllus (Petrovic) Stojanov & Stef.
  nodding plumeless thistle
Carduus nutans ssp. nutans L.
  nodding plumeless thistle
Carduus pycnocephalus L.
  Italian plumeless thistle
Carduus tenuiflorus W. Curtis
  winged plumeless thistle
Carthamus lanatus L.
  woolly distaff thistle
Carthamus lanatus ssp. baeticus (Boiss. & Reut.) Nyman
  woolly distaff thistle
Carthamus lanatus ssp. lanatus L.
  woolly distaff thistle
Carthamus tinctorius L.
  safflower
Centaurea biebersteinii DC.
  spotted knapweed
Centaurea calcitrapa L.
  red star thistle
Centaurea calcitrapoides L.
  smallhead star thistle
Centaurea cineraria L.
  dusty miller
Centaurea cyanus L.
  garden cornflower
Centaurea debeauxii Gren. & Godr.
  meadow knapweed
Centaurea debeauxii ssp. thuillieri Dostal
  meadow knapweed
Centaurea diffusa Lam.
  white knapweed
Centaurea diluta Ait.
  North African knapweed
Centaurea eriophora L.
  wild sandheath
Centaurea iberica Trev. ex Spreng.
  Iberian knapweed
Centaurea jacea L.
  brownray knapweed
Centaurea melitensis L.
  Maltese star thistle
Centaurea nigra L.
  lesser knapweed
Centaurea solstitialis L.
  yellow star thistle
Centaurea sulphurea Willd.
  sulphur knapweed
Centaurea triumfettii All.
  squarrose knapweed
Chaenactis alpigena C.W. Sharsmith
  southern Sierran pincushion
Chaenactis artemisiifolia (Harvey & Gray ex Gray) Gray
  white pincushion
Chaenactis carphoclinia Gray
  pebble pincushion
Chaenactis carphoclinia var. carphoclinia Gray
  pebble pincushion
Chaenactis carphoclinia var. peirsonii (Jepson) Munz
  Peirson's pincushion
Chaenactis douglasii (Hook.) Hook. & Arn.
  Douglas' dustymaiden
Chaenactis douglasii var. alpina Gray
  alpine dustymaiden
Chaenactis douglasii var. douglasii (Hook.) Hook. & Arn.
  Douglas' dustymaiden
Chaenactis fremontii Gray
  pincushion flower
Chaenactis glabriuscula DC.
  yellow chaenactis
Chaenactis glabriuscula var. glabriuscula DC.
  yellow pincushion
Chaenactis glabriuscula var. heterocarpha (Torr. & Gray ex Gray) Hall
  yellow pincushion
Chaenactis glabriuscula var. lanosa (DC.) Hall
  yellow pincushion
Chaenactis glabriuscula var. orcuttiana (Greene) Hall
  Orcutt's yellow pincushion
Chaenactis macrantha D.C. Eat.
  bighead dustymaiden
Chaenactis nevadensis (Kellogg) Gray
  Nevada dustymaiden
Chaenactis parishii Gray
  Parish's chaenactis
Chaenactis santolinoides Greene
  Santolina pincushion
Chaenactis stevioides Hook. & Arn.
  Steve's dustymaiden
Chaenactis suffrutescens Gray
  Shasta chaenactis
Chaenactis xantiana Gray
  fleshcolor pincushion
Chaetadelpha Gray ex S. Wats.
  skeletonweed
Chaetadelpha wheeleri Gray ex S. Wats.
  Wheeler's skeletonweed
Chaetopappa ericoides (Torr.) Nesom
  rose heath
Chamaemelum fuscatum (Brot.) Vasc.
  dusky dogfennel
Chamaemelum nobile (L.) All.
  garden dogfennel
Chloracantha spinosa (Benth.) Nesom
  spiny chloracantha
Chondrilla juncea L.
  hogbite
Chrysanthemum balsamita (L.) Baill., non L.
  = Balsamita major
Chrysanthemum carinatum Schousboe
  tricolor daisy
Chrysanthemum coronarium L.
  crowndaisy
Chrysanthemum frutescens L.
  marguerite
Chrysanthemum leucanthemum L.
  = Leucanthemum vulgare
Chrysanthemum parthenium (L.) Bernh.
  = Tanacetum parthenium
Chrysanthemum segetum L.
  corndaisy
Chrysothamnus albidus (M.E. Jones ex Gray) Greene
  whiteflower rabbitbrush
Chrysothamnus depressus Nutt.
  longflower rabbitbrush
Chrysothamnus gramineus Hall
  Panamint rock goldenrod
Chrysothamnus humilis Greene
  Truckee rabbitbrush
Chrysothamnus nauseosus (Pallas ex Pursh) Britt.
  = Ericameria nauseosa ssp. nauseosa var. nauseosa
Chrysothamnus paniculatus (Gray) Hall
  = Ericameria paniculata
Chrysothamnus parryi (Gray) Greene
  = Ericameria parryi var. parryi
Chrysothamnus viscidiflorus (Hook.) Nutt.
  green rabbitbrush
Chrysothamnus viscidiflorus ssp. axillaris (Keck) L.C. Anders.
  green rabbitbrush
Chrysothamnus viscidiflorus ssp. puberulus (D.C. Eat.) Hall & Clements
  green rabbitbrush
Chrysothamnus viscidiflorus ssp. viscidiflorus (Hook.) Nutt.
  green rabbitbrush
Chrysothamnus viscidiflorus ssp. viscidiflorus var. stenophyllus (Gray) Hall
  green rabbitbrush
Chrysothamnus viscidiflorus ssp. viscidiflorus var. viscidiflorus (Hook.) Nutt.
  green rabbitbrush
Cichorium endivia L.
  cultivated endive
Cichorium intybus L.
  chicory
Cirsium amblylepis Petrak
  Mt. Tamalpais thistle
Cirsium andersonii (Gray) Petrak
  rose thistle
Cirsium andrewsii (Gray) Jepson
  Franciscan thistle
Cirsium arizonicum (Gray) Petrak
  Arizona thistle
Cirsium arizonicum var. nidulum (M.E. Jones) Welsh
  Arizona thistle
Cirsium arvense (L.) Scop.
  Canadian thistle
Cirsium brevistylum Cronq.
  clustered thistle
Cirsium californicum var. californicum Gray
  California thistle
Cirsium callilepis var. callilepis (Greene) Jepson
  fringebract thistle
Cirsium ciliolatum (Henderson) J.T. Howell
  Ashland thistle
Cirsium congdonii Moore & Frankton
  rosette thistle
Cirsium crassicaule (Greene) Jepson
  slough thistle
Cirsium cymosum (Greene) J.T. Howell
  peregrine thistle
Cirsium douglasii DC.
  Douglas' thistle
Cirsium douglasii var. breweri (Petrak) Keil & C. Turner
Cirsium douglasii var. douglasii DC.
  Douglas' thistle
Cirsium drummondii Torr. & Gray
  dwarf thistle
Cirsium eatonii (Gray) B.L. Robins.
  Eaton's thistle
Cirsium foliosum (Hook.) DC.
  elk thistle
Cirsium fontinale (Greene) Jepson
  fountain thistle
Cirsium fontinale var. campylon (H.K. Sharsmith) Pilz ex Keil & C. Turner
Cirsium fontinale var. fontinale (Greene) Jepson
  fountain thistle
Cirsium fontinale var. obispoense J.T. Howell
  fountain thistle
Cirsium humboldtense Rydb.
  Humboldt County thistle
Cirsium hydrophilum (Greene) Jepson
  Suisun thistle
Cirsium hydrophilum var. hydrophilum (Greene) Jepson
  Suisun thistle
Cirsium hydrophilum var. vaseyi (Gray) J.T. Howell
  Vasey's thistle
Cirsium loncholepis Petrak
  la graciosa thistle
Cirsium mendocinum Petrak
  Mendocino thistle
Cirsium mohavense (Greene) Petrak
  Mojave thistle
Cirsium neomexicanum Gray
  New Mexico thistle
Cirsium neomexicanum var. neomexicanum Gray
  New Mexico thistle
Cirsium neomexicanum var. utahense (Petrak) Welsh
  Utah thistle
Cirsium occidentale (Nutt.) Jepson
  cobwebby thistle
Cirsium occidentale var. californicum (Gray) Keil & C. Turner
Cirsium occidentale var. compactum Hoover
  cobwebby thistle
Cirsium occidentale var. occidentale (Nutt.) Jepson
  cobwebby thistle
Cirsium occidentale var. venustum (Greene) Jepson
Cirsium ochrocentrum Gray
  yellowspine thistle
Cirsium pastoris J.T. Howell
  snowy thistle
Cirsium praeteriens J.F. Macbr.
  Palo Alto thistle
Cirsium quercetorum (Gray) Jepson
  Alameda County thistle
Cirsium quercetorum var. quercetorum (Gray) Jepson
  Alameda County thistle
Cirsium quercetorum var. walkerianum (Petrak) Jepson
  Walker's thistle
Cirsium quercetorum var. xerolepis Petrak
  Alameda County thistle
Cirsium remotifolium (Hook.) DC.
  fewleaf thistle
Cirsium remotifolium ssp. oregonense Petrak
Cirsium remotifolium ssp. pseudocarlinoides Petrak
Cirsium remotifolium ssp. remotifolium (Hook.) DC.
Cirsium rhothophilum Blake
  surf thistle
Cirsium scabrum (Poir.) Bonnet & Barratte
  rough thistle
Cirsium tioganum (Congd.) Petrak
  stemless thistle
Cirsium undulatum (Nutt.) Spreng.
  wavyleaf thistle
Cirsium undulatum var. undulatum (Nutt.) Spreng.
  wavyleaf thistle
Cirsium vulgare (Savi) Ten.
  bull thistle
Cnicus benedictus L.
  blessed thistle
Conyza bonariensis (L.) Cronq.
  asthmaweed
Conyza bonariensis var. bonariensis (L.) Cronq.
  asthmaweed
Conyza bonariensis var. leiotheca (Blake) Cuatrec.
  asthmaweed
Conyza canadensis (L.) Cronq.
  Canadian horseweed
Conyza canadensis var. canadensis (L.) Cronq.
  Canadian horseweed
Conyza canadensis var. glabrata (Gray) Cronq.
  Canadian horseweed
Coreopsis bigelovii (Gray) Hall
  Bigelow's tickseed
Coreopsis californica (Nutt.) H.K. Sharsmith
  California tickseed
Coreopsis californica var. californica (Nutt.) H.K. Sharsmith
  California tickseed
Coreopsis calliopsidea (DC.) Gray
  leafstem tickseed
Coreopsis douglasii (DC.) Hall
  Douglas' tickseed
Coreopsis gigantea (Kellogg) Hall
  giant coreopsis
Coreopsis hamiltonii (Elmer) H.K. Sharsmith
  Mt. Hamilton tickseed
Coreopsis lanceolata L.
  lanceleaf tickseed
Coreopsis maritima (Nutt.) Hook. f.
  sea dahlia
Coreopsis stillmanii (Gray) Blake
  Stillman's tickseed
Coreopsis tinctoria Nutt.
  golden tickseed
Coreopsis tinctoria var. atkinsoniana (Dougl. ex Lindl.) H.M. Parker
  Atkinson's tickseed
Coreopsis tinctoria var. tinctoria Nutt.
  golden tickseed
Corethrogyne californica var. californica DC.
  California sandaster
Corethrogyne filaginifolia var. filaginifolia (Hook. & Arn.) Nutt.
  common sandaster
Cosmos bipinnatus Cav.
  garden cosmos
Cosmos sulphureus Cav.
  sulphur cosmos
Cotula australis (Sieber) Hook. f.
  Australian waterbuttons
Cotula coronopifolia L.
  common brassbuttons
Crepis acuminata Nutt.
  longleaf hawksbeard
Crepis acuminata ssp. acuminata Nutt.
  longleaf hawksbeard
Crepis bakeri Greene
  Baker's hawksbeard
Crepis bakeri ssp. bakeri Greene
  Baker's hawksbeard
Crepis bakeri ssp. cusickii (Eastw.) Babcock & Stebbins
  Cusick's hawksbeard
Crepis bursifolia L.
  Italian hawksbeard
Crepis capillaris Wallr.
  smooth hawksbeard
Crepis intermedia Gray
  limestone hawksbeard
Crepis modocensis Greene
  Siskiyou hawksbeard
Crepis modocensis ssp. modocensis Greene
  Modoc hawksbeard
Crepis modocensis ssp. subacaulis (Kellogg) Babcock & Stebbins
  Siskiyou hawksbeard
Crepis monticola Coville
  mountain hawksbeard
Crepis nana Richards.
  dwarf alpine hawksbeard
Crepis nana ssp. nana Richards.
  dwarf alpine hawksbeard
Crepis nana ssp. ramosa Babcock
  dwarf alpine hawksbeard
Crepis occidentalis Nutt.
  largeflower hawksbeard
Crepis occidentalis ssp. conjuncta (Jepson) Babcock & Stebbins
  largeflower hawksbeard
Crepis occidentalis ssp. costata (Gray) Babcock & Stebbins
  largeflower hawksbeard
Crepis occidentalis ssp. occidentalis Nutt.
  largeflower hawksbeard
Crepis occidentalis ssp. pumila (Rydb.) Babcock & Stebbins
  largeflower hawksbeard
Crepis pleurocarpa Gray
  nakedstem hawksbeard
Crepis rubra L.
  red hawksbeard
Crepis runcinata (James) Torr. & Gray
  fiddleleaf hawksbeard
Crepis runcinata ssp. andersonii (Gray) Babcock & Stebbins
  Anderson's hawksbeard
Crepis runcinata ssp. hallii Babcock & Stebbins
  Hall's hawksbeard
Crepis setosa Haller f.
  bristly hawksbeard
Crepis vesicaria L.
  beaked hawksbeard
Crepis vesicaria ssp. taraxacifolia (Thuill.) Thellung ex Schinz & R. Keller
Crocidium multicaule Hook.
  common springgold
Cyanopsis muricata (L.) Dostal
  Morocco knapweed
Cynara cardunculus L.
  cardoon
Cynara scolymus L.
  globe artichoke
Dicoria canescens Gray
  desert twinbugs
Dicoria canescens ssp. canescens Gray
  desert twinbugs
Dicoria canescens ssp. clarkiae (Kennedy) Keck
  desert twinbugs
Dicoria canescens ssp. hispidula (Rydb.) Keck
  desert twinbugs
Dimeresia howellii Gray
  doublet
Dugaldia hoopesii (Gray) Rydb.
  = Hymenoxys hoopesii
Dyssodia papposa (Vent.) A.S. Hitchc.
  fetid marigold
Eastwoodia elegans Brandeg.
  yellow aster
Eatonella nivea (D.C. Eat.) Gray
  white false tickhead
Echinops sphaerocephalus L.
  great globethistle
Eclipta alba (L.) Hassk.
  = Eclipta prostrata
Eclipta prostrata (L.) L.
  false daisy
Encelia californica Nutt.
  California brittlebush
Encelia farinosa Gray ex Torr.
  goldenhills
Encelia farinosa var. farinosa Gray ex Torr.
  goldenhills
Encelia farinosa var. phenicodonta (Blake) I.M. Johnston
  goldenhills
Encelia farinosa var. radians Brandeg. ex Blake
  goldenhills
Encelia frutescens (Gray) Gray
  button brittlebush
Encelia frutescens var. frutescens (Gray) Gray
  button brittlebush
Encelia virginensis A. Nels.
  Virgin River brittlebush
Encelia virginensis var. actonii (Elmer) B.L. Turner
  Acton's brittlebush
Encelia virginensis var. virginensis A. Nels.
  Virgin River brittlebush
Enceliopsis covillei (A. Nels.) Blake
  Panamint daisy
Enceliopsis nudicaulis (Gray) A. Nels.
  nakedstem sunray
Enceliopsis nudicaulis var. nudicaulis (Gray) A. Nels.
  nakedstem sunray
Erechtites glomerata (Desf. ex Poir.) DC.
  cutleaf burnweed
Erechtites minima (Poir.) DC.
  coastal burnweed
Ericameria arborescens (Gray) Greene
  goldenfleece
Ericameria bloomeri (Gray) J.F. Macbr.
  rabbitbush heathgoldenrod
Ericameria brachylepis (Gray) Hall
  chaparral heathgoldenrod
Ericameria cooperi (Gray) Hall
  Cooper's heathgoldenrod
Ericameria cuneata (Gray) McClatchie
  cliff heathgoldenrod
Ericameria cuneata var. cuneata (Gray) McClatchie
  cliff heathgoldenrod
Ericameria cuneata var. macrocephala Urbatsch
  cliff heathgoldenrod
Ericameria cuneata var. spathulata (Gray) Hall
  cliff heathgoldenrod
Ericameria discoidea (Nutt.) Nesom
  whitestem heathgoldenrod
Ericameria discoidea var. discoidea (Nutt.) Nesom
  whitestem heathgoldenrod
Ericameria ericoides (Less.) Jepson
  California heathgoldenrod
Ericameria fasciculata (Eastw.) J.F. Macbr.
  Eastwood's heathgoldenrod
Ericameria gilmanii (Blake) Nesom
  whiteflower heathgoldenrod
Ericameria greenei (Gray) Nesom
  Greene's heathgoldenrod
Ericameria laricifolia (Gray) Shinners
  turpentine bush
Ericameria linearifolia (DC.) Urbatsch & Wussow
  narrowleaf heathgoldenrod
Ericameria nana Nutt.
  dwarf heathgoldenrod
Ericameria nauseosa (Pallas ex Pursh) Nesom & Baird
Ericameria nauseosa ssp. consimilis (Greene) Nesom & Baird
Ericameria nauseosa ssp. consimilis var. ceruminosa 
Ericameria nauseosa ssp. consimilis var. leiosperma 
Ericameria nauseosa ssp. consimilis var. mohavensis 
Ericameria nauseosa ssp. consimilis var. oreophila 
Ericameria nauseosa ssp. nauseosa (Pallas ex Pursh) Nesom & Baird
Ericameria nauseosa ssp. nauseosa var. bernardina 
Ericameria nauseosa ssp. nauseosa var. hololeuca 
Ericameria nauseosa ssp. nauseosa var. nauseosa 
Ericameria nauseosa ssp. nauseosa var. speciosa 
Ericameria ophitidis (J.T. Howell) Nesom
  serpentine heathgoldenrod
Ericameria palmeri (Gray) Hall
  Palmer's heathgoldenrod
Ericameria palmeri var. pachylepis (Hall) Nesom
  Palmer's heathgoldenrod
Ericameria palmeri var. palmeri (Gray) Hall
  Palmer's heathgoldenrod
Ericameria paniculata (Gray) Rydb.
Ericameria parishii (Greene) Hall
  Parish's heathgoldenrod
Ericameria parryi (Gray) Nesom
Ericameria parryi var. aspra (Greene) Nesom & Baird
Ericameria parryi var. imula (Hall & Clements) Nesom & Baird
Ericameria parryi var. latior (Hall & Clements) Nesom & Baird
Ericameria parryi var. monocephala (A. Nels & Kennedy) Nesom & Baird
Ericameria parryi var. nevadensis (Gray) Nesom & Baird
Ericameria parryi var. parryi (Gray) Nesom
Ericameria parryi var. vulcanica (Greene) Nesom & Baird
Ericameria pinifolia (Gray) Hall
  pinebush
Ericameria suffruticosa (Nutt.) Nesom
  singlehead heathgoldenrod
Ericameria teretifolia (Dur. & Hilg.) Jepson
Erigeron acris L.
Erigeron acris ssp. acris L.
Erigeron acris ssp. acris var. debilis 
Erigeron aequifolius Hall
  Hall's fleabane
Erigeron algidus Jepson
  stalked fleabane
Erigeron aliceae T.J. Howell
  Alice Eastwood's fleabane
Erigeron annuus (L.) Pers.
  eastern daisy fleabane
Erigeron aphanactis (Gray) Greene
  rayless shaggy fleabane
Erigeron aphanactis var. aphanactis (Gray) Greene
  rayless shaggy fleabane
Erigeron aphanactis var. congestus (Greene) Cronq.
  rayless shaggy fleabane
Erigeron argentatus Gray
  silver fleabane
Erigeron austiniae Greene
  dwarf yellow fleabane
Erigeron barbellulatus Greene
  shining fleabane
Erigeron biolettii Greene
  Biolett's erigeron
Erigeron blochmaniae Greene
  Blochman's erigeron
Erigeron bloomeri Gray
  scabland fleabane
Erigeron bloomeri var. bloomeri Gray
  scabland fleabane
Erigeron bloomeri var. nudatus (Gray) Cronq.
  scabland fleabane
Erigeron bloomeri var. pubens Keck
  scabland fleabane
Erigeron breweri Gray
  Brewer's fleabane
Erigeron breweri var. breweri Gray
  Brewer's fleabane
Erigeron breweri var. covillei (Greene) Nesom
  Coville's erigeron
Erigeron breweri var. jacinteus (Hall) Cronq.
  Brewer's fleabane
Erigeron breweri var. porphyreticus (M.E. Jones) Cronq.
  Brewer's fleabane
Erigeron canadensis L.
  = Conyza canadensis var. canadensis
Erigeron cervinus Greene
  Siskiyou fleabane
Erigeron chrysopsidis Gray
  dwarf yellow fleabane
Erigeron clokeyi Cronq.
  Clokey's fleabane
Erigeron compactus Blake
  fernleaf fleabane
Erigeron compositus Pursh
  cutleaf daisy
Erigeron concinnus (Hook. & Arn.) Torr. & Gray
  Navajo fleabane
Erigeron concinnus var. concinnus (Hook. & Arn.) Torr. & Gray
  Navajo fleabane
Erigeron concinnus var. condensatus D.C. Eat.
  Navajo fleabane
Erigeron coulteri Porter
  large mountain fleabane
Erigeron decumbens Nutt.
  Willamette fleabane
Erigeron decumbens var. robustior (Cronq.) Cronq.
  Willamette fleabane
Erigeron divergens Torr. & Gray
  spreading fleabane
Erigeron eatonii Gray
  Eaton's fleabane
Erigeron eatonii var. plantagineus (Greene) Cronq.
  Eaton's fleabane
Erigeron eatonii var. sonnei (Greene) Nesom
Erigeron elegantulus Greene
  blue dwarf fleabane
Erigeron elmeri (Greene) Greene
  Elmer's erigeron
Erigeron filifolius (Hook.) Nutt.
  threadleaf fleabane
Erigeron filifolius var. filifolius (Hook.) Nutt.
  threadleaf fleabane
Erigeron foliosus Nutt.
  leafy fleabane
Erigeron foliosus var. confinis (T.J. Howell) Jepson
  leafy fleabane
Erigeron foliosus var. foliosus Nutt.
  leafy fleabane
Erigeron foliosus var. hartwegii (Greene) Jepson
  Hartweg's fleabane
Erigeron glaucus Ker-Gawl.
  seaside fleabane
Erigeron inornatus (Gray) Gray
  California rayless fleabane
Erigeron inornatus var. inornatus (Gray) Gray
  California rayless fleabane
Erigeron karvinskianus DC.
  Latin American fleabane
Erigeron lassenianus Greene
  Mt. Lassen fleabane
Erigeron linearis (Hook.) Piper
  desert yellow fleabane
Erigeron lobatus A. Nels.
  lobed fleabane
Erigeron lonchophyllus Hook.
Erigeron miser Gray
  starved fleabane
Erigeron multiceps Greene
  Kern River fleabane
Erigeron nevadincola Blake
  Nevada fleabane
Erigeron parishii Gray
  Parish's fleabane
Erigeron peregrinus (Banks ex Pursh) Greene
  subalpine fleabane
Erigeron peregrinus ssp. callianthemus (Greene) Cronq.
  subalpine fleabane
Erigeron peregrinus ssp. callianthemus var. angustifolius (Gray) Cronq.
  subalpine fleabane
Erigeron peregrinus ssp. callianthemus var. hirsutus Cronq.
  subalpine fleabane
Erigeron peregrinus ssp. peregrinus (Banks ex Pursh) Greene
  subalpine fleabane
Erigeron peregrinus ssp. peregrinus var. peregrinus (Banks ex Pursh) Greene
  subalpine fleabane
Erigeron petrophilus Greene
  cliff fleabane
Erigeron petrophilus var. viscidulus (Gray) Nesom
  rockloving erigeron
Erigeron philadelphicus L.
  Philadelphia fleabane
Erigeron pumilus Nutt.
  shaggy fleabane
Erigeron pumilus ssp. intermedius Cronq.
  shaggy fleabane
Erigeron pumilus ssp. intermedius var. gracilior Cronq.
  shaggy fleabane
Erigeron pumilus ssp. intermedius var. intermedius (Cronq.) Cronq.
  shaggy fleabane
Erigeron pygmaeus (Gray) Greene
  pygmy fleabane
Erigeron reductus (Cronq.) Nesom
  fleabane
Erigeron reductus var. angustatus (Gray) Nesom
  fleabane
Erigeron reductus var. reductus (Cronq.) Nesom
  fleabane
Erigeron sanctarum S. Wats.
  saints fleabane
Erigeron strigosus Muhl. ex Willd.
  prairie fleabane
Erigeron strigosus var. septentrionalis (Fern. & Wieg.) Fern.
  prairie fleabane
Erigeron strigosus var. strigosus Muhl. ex Willd.
  prairie fleabane
Erigeron supplex Gray
  supple fleabane
Erigeron tener (Gray) Gray
  slender fleabane
Erigeron uncialis Blake
  lone fleabane
Erigeron uncialis ssp. conjugans (Blake) Cronq.
  lone fleabane
Erigeron uncialis ssp. uncialis Blake
  lone fleabane
Erigeron utahensis Gray
  Utah fleabane
Erigeron vagus Payson
  rambling fleabane
Eriophyllum ambiguum (Gray) Gray
  beautiful woollysunflower
Eriophyllum ambiguum var. ambiguum (Gray) Gray
  beautiful woollysunflower
Eriophyllum ambiguum var. paleaceum (Brandeg.) Ferris
  beautiful woollysunflower
Eriophyllum confertiflorum (DC.) Gray
  yellow yarrow
Eriophyllum confertiflorum var. tanacetiflorum (Greene) Jepson
Eriophyllum congdonii Brandeg.
  Congdon's woollysunflower
Eriophyllum jepsonii Greene
  Jepson's woollysunflower
Eriophyllum lanatum (Pursh) Forbes
  woolly eriophyllum
Eriophyllum lanatum var. achillaeoides (DC.) Jepson
  common woollysunflower
Eriophyllum lanatum var. aphanactis J.T. Howell
  common woollysunflower
Eriophyllum lanatum var. arachnoideum (Fisch. & Ave-Lall.) Jepson
  common woollysunflower
Eriophyllum lanatum var. croceum (Greene) Jepson
  common woollysunflower
Eriophyllum lanatum var. cuneatum (Kellogg) Jepson
  common woollysunflower
Eriophyllum lanatum var. grandiflorum (Gray) Jepson
  common woollysunflower
Eriophyllum lanatum var. hallii Constance
  Hall's woollysunflower
Eriophyllum lanatum var. integrifolium (Hook.) Smiley
  common woollysunflower
Eriophyllum lanatum var. lanceolatum (T.J. Howell) Jepson
  common woollysunflower
Eriophyllum lanatum var. leucophyllum (DC.) W.R. Carter
  common woollysunflower
Eriophyllum lanatum var. obovatum (Greene) Hall
  common woollysunflower
Eriophyllum latilobum Rydb.
  San Mateo woollysunflower
Eriophyllum mohavense (I.M. Johnston) Jepson
  Mojave woollysunflower
Eriophyllum multicaule (DC.) Gray
  manystem woollysunflower
Eriophyllum nevinii Gray
  Nevin's woollysunflower
Eriophyllum nubigenum Greene ex Gray
  Yosemite woollysunflower
Eriophyllum pringlei Gray
  Pringle's woollysunflower
Eriophyllum stoechadifolium Lag.
  seaside woollysunflower
Eucephalus breweri (Gray) Nesom
Eucephalus brickellioides (Greene) Nesom
Eucephalus engelmannii (D.C. Eat.) Greene
Eucephalus glabratus (Greene) Greene
Euchiton gymnocephalus (DC.) A. Anderb.
Euchiton japonicus (Thunb.) A. Anderb.
Eupatorium herbaceum (Gray) Greene
  = Ageratina herbacea
Eupatorium occidentale Hook.
  = Ageratina occidentalis
Euthamia occidentalis Nutt.
  western goldentop
Evax caulescens (Benth.) Gray
  involucrate pygmycudweed
Evax sparsiflora var. sparsiflora (Gray) Jepson
  erect pygmycudweed
Filago arizonica Gray
  Arizona cottonrose
Filago californica Nutt.
  California cottonrose
Filago depressa Gray
  dwarf cottonrose
Filago gallica L.
  narrowleaf cottonrose
Filago minima (Sm.) Pers.
  little cottonrose
Filago pyramidata L.
  broadleaf cottonrose
Flaveria trinervia (Spreng.) C. Mohr
  clustered yellowtops
Franseria 
  = Ambrosia 
Gaillardia aristata Pursh
  common gaillardia
Gaillardia pulchella Foug.
  firewheel
Galinsoga Ruiz & Pavon
  galinsoga
Galinsoga parviflora Cav.
  gallantsoldier
Gamochaeta pensylvanica (Willd.) Cabrera
  Pennsylvania everlasting
Gamochaeta purpurea (L.) Cabrera
  spoonleaf purple everlasting
Gazania linearis (Thunb.) Druce
  treasureflower
Geraea canescens Torr. & Gray
  hairy desertsunflower
Geraea canescens var. canescens Torr. & Gray
  hairy desertsunflower
Geraea viscida (Gray) Blake
  sticky desertsunflower
Glyptopleura marginata D.C. Eat.
  carveseed
Glyptopleura setulosa Gray
  holy dandelion
Gnaphalium palustre Nutt.
  western marsh cudweed
Grindelia aphanactis Rydb.
  = Grindelia nuda var. aphanactis
Grindelia camporum Greene
  Great Valley gumweed
Grindelia camporum var. bracteosa (J.T. Howell) M.A. Lane
  bract gumweed
Grindelia camporum var. camporum Greene
  Great Valley gumweed
Grindelia fraxinopratensis Reveal & Beatley
  Ash Meadows gumweed
Grindelia hirsutula Hook. & Arn.
  hairy gumweed
Grindelia hirsutula ssp. hirsutula Hook. & Arn.
  hairy gumweed
Grindelia hirsutula var. hallii (Steyermark ex Rothrock) M.A. Lane
  Hall's gumweed
Grindelia hirsutula var. hirsutula Hook. & Arn.
  hairy gumweed
Grindelia hirsutula var. maritima (Greene) M.A. Lane
  coastal gumweed
Grindelia integrifolia DC.
  Puget Sound gumweed
Grindelia latifolia Kellogg
  coastal gumweed
Grindelia latifolia var. latifolia Kellogg
  coastal gumweed
Grindelia nana Nutt.
  Idaho gumweed
Grindelia nana var. nana Nutt.
  Idaho gumweed
Grindelia nuda Wood
  curlytop gumweed
Grindelia nuda var. aphanactis (Rydb.) Nesom
  curlytop gumweed
Grindelia nuda var. nuda Wood
  curlytop gumweed
Grindelia papposa Nesom & Suh
Grindelia robusta var. robusta Nutt.
  shore gumweed
Grindelia squarrosa (Pursh) Dunal
  curlycup gumweed
Grindelia squarrosa var. quasiperennis Lunell
  curlycup gumweed
Grindelia squarrosa var. serrulata (Rydb.) Steyermark
  curlycup gumweed
Grindelia stricta DC.
Grindelia stricta var. platyphylla (Greene) M.A. Lane
Grindelia stricta var. stricta DC.
Guizotia abyssinica (L. f.) Cass.
  ramtilla
Gutierrezia californica (DC.) Torr. & Gray
  San Joaquin snakeweed
Gutierrezia microcephala (DC.) Gray
  threadleaf snakeweed
Gutierrezia sarothrae (Pursh) Britt. & Rusby
  broom snakeweed
Haplopappus acaulis (Nutt.) Gray
  = Stenotus acaulis var. acaulis
Haplopappus arborescens (Gray) Hall
  = Ericameria arborescens
Haplopappus carthamoides (Hook.) Gray
  = Pyrrocoma carthamoides var. carthamoides
Haplopappus contractus Hall
  = Pyrrocoma uniflora var. uniflora
Haplopappus cooperi (Gray) Hall
  = Ericameria cooperi
Haplopappus cuneatus Gray
  = Ericameria cuneata var. cuneata
Haplopappus ericoides (Less.) Hook. & Arn.
  = Ericameria ericoides
Haplopappus eximius Hall
  = Tonestus eximius
Haplopappus gracilis (Nutt.) Gray
  = Machaeranthera gracilis
Haplopappus laricifolius Gray
  = Ericameria laricifolia
Haplopappus linearifolius DC.
  = Ericameria linearifolia
Haplopappus lyallii Gray
  = Tonestus lyallii
Haplopappus nanus (Nutt.) D.C. Eat.
  = Ericameria nana
Haplopappus peirsonii (Keck) J.T. Howell
  = Tonestus peirsonii
Haplopappus racemosus (Nutt.) Torr.
  = Pyrrocoma racemosa var. racemosa
Haplopappus spinulosus var. gooddingii (A. Nels.) Blake
  = Machaeranthera pinnatifida ssp. gooddingii var. gooddingii
Haplopappus suffruticosus (Nutt.) Gray
  = Ericameria suffruticosa
Haplopappus uniflorus (Hook.) Torr. & Gray
  = Pyrrocoma uniflora var. uniflora
Hazardia brickellioides (Blake) W.D. Clark
  brickellbush goldenweed
Hazardia cana (Gray) Greene
  island hazardia
Hazardia detonsa (Greene) Greene
  island bristleweed
Hazardia orcuttii (Gray) Greene
  Orcutt's bristleweed
Hazardia squarrosa (Hook. & Arn.) Greene
  sawtooth goldenbush
Hazardia squarrosa var. grindelioides (DC.) W.D. Clark
  sawtooth bristleweed
Hazardia squarrosa var. obtusa (Greene) Jepson
  sawtooth bristleweed
Hazardia squarrosa var. squarrosa (Hook. & Arn.) Greene
  sawtooth goldenbush
Hazardia stenolepis (Hall) Hoover
  serpentine bristleweed
Hazardia whitneyi (Gray) Greene
  Whitney's bristleweed
Hazardia whitneyi var. discoidea (J.T. Howell) W.D. Clark
  Whitney's bristleweed
Hazardia whitneyi var. whitneyi (Gray) Greene
  Whitney's bristleweed
Hecastocleis Gray
  hecastocleis
Hecastocleis shockleyi Gray
  prickleleaf
Hedypnois cretica (L.) Dum.-Cours.
  cretanweed
Helenium amarum (Raf.) H. Rock
  yellowdicks
Helenium autumnale L.
  common sneezeweed
Helenium autumnale var. grandiflorum (Nutt.) Torr. & Gray
  fall sneezeweed
Helenium autumnale var. montanum (Nutt.) Fern.
  mountain sneezeweed
Helenium bigelovii Gray
  Bigelow's sneezeweed
Helenium bolanderi Gray
  coastal sneezeweed
Helenium hoopesii Gray
  = Hymenoxys hoopesii
Helenium puberulum DC.
  rosilla
Helianthella californica Gray
  California helianthella
Helianthella californica var. californica Gray
  California helianthella
Helianthella californica var. nevadensis (Greene) Jepson
  Nevada helianthella
Helianthella californica var. shastensis W.A. Weber
  Shasta helianthella
Helianthella castanea Greene
  Mt. Diablo helianthella
Helianthus annuus L.
  common sunflower
Helianthus bolanderi Gray
  serpentine sunflower
Helianthus californicus DC.
Helianthus ciliaris DC.
  Texas blueweed
Helianthus cusickii Gray
  Cusick's sunflower
Helianthus gracilentus Gray
  slender sunflower
Helianthus maximiliani Schrad.
  Maximilian sunflower
Helianthus niveus (Benth.) Brandeg.
  showy sunflower
Helianthus niveus ssp. canescens (Gray) Heiser
  showy sunflower
Helianthus niveus ssp. tephrodes (Gray) Heiser
  Algodones sunflower
Helianthus nuttallii Torr. & Gray
  Nuttall's sunflower
Helianthus nuttallii ssp. nuttallii Torr. & Gray
  Nuttall's sunflower
Helianthus nuttallii ssp. parishii (Gray) Heiser
  Parish's sunflower
Helianthus petiolaris Nutt.
  prairie sunflower
Helianthus petiolaris ssp. petiolaris Nutt.
  prairie sunflower
Heliomeris hispida (Gray) Cockerell
  hairy falsegoldeneye
Heliomeris multiflora Nutt.
  showy goldeneye
Heliomeris multiflora var. nevadensis (A. Nels.) Yates
  Nevada goldeneye
Hemizonia arida Keck
  redrock tarweed
Hemizonia clementina Brandeg.
  Catalina tarweed
Hemizonia congesta DC.
  hayfield tarweed
Hemizonia congesta ssp. calyculata Babcock & Hall
Hemizonia congesta ssp. clevelandii (Greene) Babcock & Hall
Hemizonia congesta ssp. congesta DC.
  hayfield tarweed
Hemizonia congesta ssp. luzulifolia (DC.) Babcock & Hall
Hemizonia congesta ssp. tracyi Babcock & Hall
Hemizonia congesta ssp. vernalis (Keck) Tanowitz
  hayfield tarweed
Hemizonia conjugens Keck
  Otay tarweed
Hemizonia corymbosa (DC.) Torr. & Gray
  coastal tarweed
Hemizonia corymbosa ssp. corymbosa (DC.) Torr. & Gray
  coastal tarweed
Hemizonia corymbosa ssp. macrocephala (Nutt.) Keck
  coastal tarweed
Hemizonia fasciculata (DC.) Torr. & Gray
  clustered tarweed
Hemizonia fitchii Gray
  Fitch's tarweed
Hemizonia floribunda Gray
  Tecate tarweed
Hemizonia halliana Keck
  Hall's tarweed
Hemizonia increscens (Hall ex Keck) Tanowitz
  grassland tarweed
Hemizonia increscens ssp. foliosa (Hoover) Tanowitz
  grassland tarweed
Hemizonia increscens ssp. increscens (Hall ex Keck) Tanowitz
  grassland tarweed
Hemizonia increscens ssp. villosa Tanowitz
  grassland tarweed
Hemizonia kelloggii Greene
  Kellogg's tarweed
Hemizonia lobbii Greene
  threeray tarweed
Hemizonia luzulifolia ssp. luzulifolia DC.
  hayfield tarweed
Hemizonia minthornii Jepson
  Santa Susana tarweed
Hemizonia mohavensis Keck
  Mojave tarweed
Hemizonia pallida Keck
  Kern tarweed
Hemizonia paniculata Gray
  San Diego tarweed
Hemizonia parryi Greene
  pappose tarweed
Hemizonia parryi ssp. australis Keck
Hemizonia parryi ssp. congdonii (Robins. & Greenm.) Keck
  Congdon's tarweed
Hemizonia parryi ssp. parryi Greene
  Parry's tarweed
Hemizonia parryi ssp. rudis (Greene) Keck
  pappose tarweed
Hemizonia pentactis (Keck) Keck
  Salinas River tarweed
Hemizonia pungens (Hook. & Arn.) Torr. & Gray
  common spikeweed
Hemizonia pungens ssp. laevis Keck
Hemizonia pungens ssp. maritima (Greene) Keck
  common tarweed
Hemizonia pungens ssp. pungens (Hook. & Arn.) Torr. & Gray
  common tarweed
Hemizonia pungens ssp. septentrionalis Keck
  common tarweed
Hesperevax acaulis (Kellogg) Greene
  hesperevax
Hesperevax acaulis var. acaulis (Kellogg) Greene
  hesperevax
Hesperevax sparsiflora (Gray) Greene
  fewflower hesperevax
Hesperevax sparsiflora var. brevifolia (Gray) Morefield
  shortflower hesperevax
Hesperevax sparsiflora var. sparsiflora (Gray) Greene
  fewflower hesperevax
Heterotheca camphorata (Eastw.) Harms
  = Heterotheca sessiliflora ssp. echioides var. camphorata
Heterotheca grandiflora Nutt.
  telegraphweed
Heterotheca oregona (Nutt.) Shinners
  Oregon goldenaster
Heterotheca oregona var. compacta (Keck) Semple
  Oregon goldenaster
Heterotheca oregona var. oregona (Nutt.) Shinners
  Oregon goldenaster
Heterotheca oregona var. rudis (Greene) Semple
  Oregon goldenaster
Heterotheca oregona var. scaberrima (Gray) Semple
  Oregon goldenaster
Heterotheca sessiliflora (Nutt.) Shinners
  sessileflower falsegoldenaster
Heterotheca sessiliflora ssp. bolanderi (Gray) Semple
Heterotheca sessiliflora ssp. echioides (Nutt.) Shinner
Heterotheca sessiliflora ssp. echioides var. camphorata 
Heterotheca sessiliflora ssp. echioides var. echioides 
Heterotheca sessiliflora ssp. fastigiata (Greene) Semple
Heterotheca sessiliflora ssp. fastigiata var. fastigiata 
Heterotheca subaxillaris (Lam.) Britt. & Rusby
  camphorweed
Heterotheca villosa (Pursh) Shinners
  hairy goldenaster
Heterotheca villosa var. hispida (Hook.) Harms
  bristly hairy goldaster
Heterotheca villosa var. villosa (Pursh) Shinners
  hairy goldenaster
Hieracium albiflorum Hook.
  white hawkweed
Hieracium argutum Nutt.
  southern hawkweed
Hieracium argutum var. argutum Nutt.
  southern hawkweed
Hieracium aurantiacum L.
  orange hawkweed
Hieracium bolanderi Gray
  Bolander's hawkweed
Hieracium cynoglossoides Arv.-Touv.
  houndstongue hawkweed
Hieracium gracile Hook.
  slender hawkweed
Hieracium gracile var. detonsum (Gray) Gray
  low alpine hawkweed
Hieracium gracile var. gracile Hook.
  slender hawkweed
Hieracium greenei Gray
  Greene's hawkweed
Hieracium horridum Fries
  prickly hawkweed
Hieracium scouleri Hook.
  woollyweed
Hieracium scouleri var. nudicaule (Gray) Cronq.
  woollyweed
Hieracium scouleri var. scouleri Hook.
  Scouler's woollyweed
Holocarpha heermannii (Greene) Keck
  Heermann's tarweed
Holocarpha macradenia (DC.) Greene
  Santa Cruz tarplant
Holocarpha obconica (J.C. Clausen & Keck) Keck
  San Joaquin tarweed
Holocarpha obconica ssp. autumnalis Keck
  San Joaquin tarweed
Holocarpha obconica ssp. obconica (J.C. Clausen & Keck) Keck
  San Joaquin tarweed
Holocarpha virgata (Gray) Keck
  yellowflower tarweed
Holocarpha virgata ssp. elongata Keck
  wand tarbush
Holocarpha virgata ssp. virgata (Gray) Keck
  yellowflower tarweed
Holozonia filipes (Hook. & Arn.) Greene
  whitecrown
Hulsea algida Gray
  pain hulsea
Hulsea brevifolia Gray
  shortleaf alpinegold
Hulsea californica Torr. & Gray
  San Diego alpinegold
Hulsea heterochroma Gray
  redray alpinegold
Hulsea mexicana Rydb.
  Mexican alpinegold
Hulsea nana Gray
  dwarf alpinegold
Hulsea vestita Gray
  pumice alpinegold
Hulsea vestita ssp. callicarpha (Hall) Wilken
  pumice alpinegold
Hulsea vestita ssp. gabrielensis Wilken
  pumice alpinegold
Hulsea vestita ssp. inyoensis (Keck) Wilken
  pumice alpinegold
Hulsea vestita ssp. parryi (Gray) Wilken
  Parry's alpinegold
Hulsea vestita ssp. pygmaea (Gray) Wilken
  pygmy alpinegold
Hulsea vestita ssp. vestita Gray
  pumice alpinegold
Hymenoclea monogyra Torr. & Gray ex Gray
  singlewhorl burrobush
Hymenoclea salsola Torr. & Gray ex Gray
  white burrobush
Hymenoclea salsola var. fasciculata (A. Nels.) K.M. Peterson & Payne
  white burrobush
Hymenoclea salsola var. pentalepis (Rydb.) L. Benson
  white burrobush
Hymenoclea salsola var. salsola Torr. & Gray ex Gray
  white burrobush
Hymenopappus filifolius Hook.
  fineleaf hymenopappus
Hymenopappus filifolius var. eriopodus (A. Nels.) B.L. Turner
  fineleaf hymenopappus
Hymenopappus filifolius var. lugens (Greene) Jepson
  Idaho hymenopappus
Hymenopappus filifolius var. megacephalus B.L. Turner
  fineleaf hymenopappus
Hymenopappus filifolius var. nanus (Rydb.) B.L. Turner
  fineleaf hymenopappus
Hymenothrix loomisii Blake
  Loomis' thimblehead
Hymenothrix wrightii Gray
  Wright's thimblehead
Hymenoxys cooperi (Gray) Cockerell
  Cooper's hymenoxys
Hymenoxys cooperi var. canescens (D.C. Eat.) Parker
  Cooper's hymenoxys
Hymenoxys cooperi var. cooperi (Gray) Cockerell
  Cooper's hymenoxys
Hymenoxys hoopesii (Gray) Bierner
Hymenoxys lemmonii (Greene) Cockerell
  Lemmon's rubberweed
Hymenoxys odorata DC.
  bitter rubberweed
Hypochaeris glabra L.
  smooth catsear
Hypochaeris radicata L.
  hairy catsear
Inula helenium L.
  elecampane inula
Ionactis alpina (Nutt.) Greene
  alpine ionactis
Isocoma acradenia (Greene) Greene
  alkali jimmyweed
Isocoma acradenia var. acradenia (Greene) Greene
  alkali goldenbush
Isocoma acradenia var. bracteosa (Greene) Nesom
  alkali goldenbush
Isocoma acradenia var. eremophila (Greene) Nesom
  alkali goldenbush
Isocoma arguta Greene
  jimmyweed
Isocoma menziesii (Hook. & Arn.) Nesom
  Menzies' jimmyweed
Isocoma menziesii var. decumbens (Greene) Nesom
  Menzies' jimmyweed
Isocoma menziesii var. menziesii (Hook. & Arn.) Nesom
  Menzies' jimmyweed
Isocoma menziesii var. sedoides (Greene) Nesom
  Menzies' jimmyweed
Isocoma menziesii var. vernonioides (Nutt.) Nesom
  Menzies' jimmyweed
Iva axillaris Pursh
  povertyweed
Iva hayesiana Gray
  San Diego povertyweed
Iva nevadensis M.E. Jones
  Nevada sumpweed
Jaumea carnosa (Less.) Gray
  marsh jaumea
Lactuca biennis (Moench) Fern.
  tall blue lettuce
Lactuca canadensis L.
  Canada lettuce
Lactuca canadensis var. canadensis L.
  Canada lettuce
Lactuca canadensis var. longifolia (Michx.) Farw.
  Canada lettuce
Lactuca ludoviciana (Nutt.) Riddell
  biannual lettuce
Lactuca saligna L.
  willowleaf lettuce
Lactuca sativa L.
  garden lettuce
Lactuca scariola L.
  = Lactuca serriola
Lactuca serriola L.
  prickly lettuce
Lactuca tatarica (L.) C.A. Mey.
  blue lettuce
Lactuca tatarica var. pulchella (Pursh) Breitung
  blue lettuce
Laennecia coulteri (Gray) Nesom
  conyza
Lagophylla dichotoma Benth.
  forked hareleaf
Lagophylla glandulosa Gray
  glandular hareleaf
Lagophylla glandulosa ssp. glandulosa Gray
  glandular hareleaf
Lagophylla minor (Keck) Keck
  lesser hareleaf
Lagophylla ramosissima Nutt.
  branched lagophylla
Lagophylla ramosissima ssp. congesta (Greene) Keck
  branched lagophylla
Lapsana communis L.
  common nipplewort
Lasthenia burkei (Greene) Greene
  Burke's baeria
Lasthenia californica DC. ex Lindl.
  California goldfields
Lasthenia chrysantha (Greene ex Gray) Greene
  alkalisink goldfields
Lasthenia conjugens Greene
  Contra Costa goldfields
Lasthenia coronaria (Nutt.) Ornduff
  royal goldfields
Lasthenia debilis (Greene ex Gray) Ornduff
  Greene's goldfields
Lasthenia ferrisiae Ornduff
  Ferris' goldfields
Lasthenia fremontii (Torr. ex Gray) Greene
  Fremont's goldfields
Lasthenia glaberrima DC.
  smooth goldfields
Lasthenia glabrata Lindl.
  yellowray goldfields
Lasthenia glabrata ssp. coulteri (Gray) Ornduff
  Coulter's goldfields
Lasthenia glabrata ssp. glabrata Lindl.
  yellowray goldfields
Lasthenia leptalea (Gray) Ornduff
  Salinas Valley goldfields
Lasthenia macrantha (Gray) Greene
  pickleweed
Lasthenia macrantha ssp. bakeri (J.T. Howell) Ornduff
  Baker's goldfields
Lasthenia macrantha ssp. macrantha (Gray) Greene
  perennial goldfields
Lasthenia maritima (Gray) Ornduff
  seaside goldfields
Lasthenia microglossa (DC.) Greene
  smallray goldfields
Lasthenia minor (DC.) Ornduff
  coastal goldfields
Lasthenia platycarpha (Gray) Greene
  alkali goldfields
Layia carnosa (Nutt.) Torr. & Gray
  beach tidytips
Layia chrysanthemoides (DC.) Gray
  smooth tidytips
Layia chrysanthemoides ssp. chrysanthemoides (DC.) Gray
  smooth tidytips
Layia discoidea (Keck) Keck
  rayless tidytips
Layia fremontii (Torr. & Gray) Gray
  Fremont's tidytips
Layia gaillardioides (Hook. & Arn.) DC.
  woodland tidytips
Layia glandulosa (Hook.) Hook. & Arn.
  whitedaisy tidytips
Layia glandulosa ssp. glandulosa (Hook.) Hook. & Arn.
  whitedaisy tidytips
Layia heterotricha (DC.) Hook. & Arn.
  paleyellow tidytips
Layia hieracioides (DC.) Hook. & Arn.
  tall tidytips
Layia jonesii Gray
  Jones' tidytips
Layia leucopappa Keck
  Comanche Point tidytips
Layia munzii Keck
  Munz's tidytips
Layia pentachaeta Gray
  Sierran tidytips
Layia pentachaeta ssp. albida Keck
  Sierran tidytips
Layia pentachaeta ssp. pentachaeta Gray
  Sierran tidytips
Layia platyglossa (Fisch. & C.A. Mey.) Gray
  coastal tidytips
Layia platyglossa ssp. platyglossa (Fisch. & C.A. Mey.) Gray
  coastal tidytips
Layia septentrionalis Keck
  Colusa tidytips
Lembertia congdonii (Gray) Greene
  San Joaquin woollythread
Leontodon hirtus L.
  rough hawkbit
Leontodon taraxacoides (Vill.) Merat
  lesser hawkbit
Lepidospartum latisquamum S. Wats.
  Nevada broomsage
Lepidospartum squamatum (Gray) Gray
  California broomsage
Lessingia arachnoidea Greene
Lessingia filaginifolia (Hook. & Arn.) M.A. Lane
Lessingia filaginifolia var. californica (DC.) M.A. Lane
Lessingia filaginifolia var. filaginifolia (Hook. & Arn.) M.A. Lane
Lessingia germanorum Cham.
  San Francisco vinegarweed
Lessingia germanorum var. germanorum Cham.
  San Francisco vinegarweed
Lessingia glandulifera Gray
  valley vinegarweed
Lessingia glandulifera var. glandulifera Gray
  valley vinegarweed
Lessingia glandulifera var. pectinata (Greene) Jepson
  valley vinegarweed
Lessingia glandulifera var. tomentosa (Greene) Ferris
  valley vinegarweed
Lessingia hololeuca Greene
  woollyhead vinegarweed
Lessingia hololeuca var. hololeuca Greene
  woollyhead vinegarweed
Lessingia lemmonii Gray
  Lemmon's vinegarweed
Lessingia lemmonii var. lemmonii Gray
  Lemmon's vinegarweed
Lessingia lemmonii var. peirsonii (J.T. Howell) Ferris
  Peirson's vinegarweed
Lessingia lemmonii var. ramulosissima (A. Nels.) Ferris
  Lemmon's vinegarweed
Lessingia leptoclada Gray
  Sierran vinegarweed
Lessingia micradenia Greene
  Mt. Tamalpais vinegarweed
Lessingia micradenia var. glabrata (Keck) Ferris
  Mt. Tamalpais vinegarweed
Lessingia micradenia var. micradenia Greene
  Mt. Tamalpais vinegarweed
Lessingia nana Gray
  dwarf vinegarweed
Lessingia nemaclada Greene
  slenderstem vinegarweed
Lessingia nemaclada var. albiflora (Eastw.) J.T. Howell
  slenderstem vinegarweed
Lessingia nemaclada var. mendocina (Greene) J.T. Howell
  Mendocino vinegarweed
Lessingia nemaclada var. nemaclada Greene
  slenderstem vinegarweed
Lessingia occidentalis (Hall) M.A. Lane
Lessingia ramulosa Gray
  Sonoma vinegarweed
Lessingia ramulosa var. adenophora (Greene) Gray
  Sonoma vinegarweed
Lessingia ramulosa var. ramulosa Gray
  Sonoma vinegarweed
Lessingia tenuis (Gray) Coville
Lessingia virgata Gray
  wand vinegarweed
Lessingia virgata var. glomerata (Greene) J.T. Howell
  wand vinegarweed
Lessingia virgata var. virgata Gray
  wand vinegarweed
Leucanthemum leucanthemum (L.) Rydb.
  = Leucanthemum vulgare
Leucanthemum vulgare Lam.
  oxeyedaisy
Luina hypoleuca Benth.
  littleleaf silverback
Lygodesmia 
  = Stephanomeria 
Machaeranthera arida B.L. Turner & Horne
  arid tansyaster
Machaeranthera canescens (Pursh) Gray
  hoary aster
Machaeranthera canescens ssp. canescens (Pursh) Gray
  hoary aster
Machaeranthera canescens ssp. canescens var. canescens (Pursh) Gray
  cutleaf goldenweed
Machaeranthera canescens ssp. canescens var. incana (Lindl.) Gray
  cutleaf goldenweed
Machaeranthera canescens ssp. canescens var. leucanthemifolia (Greene) Welsh
  whiteflower machaeranthera
Machaeranthera canescens ssp. canescens var. shastensis (Gray) B.L. Turner
  Shasta machaeranthera
Machaeranthera canescens ssp. canescens var. ziegleri (Munz) B.L. Turner
  Ziegler's machaeranthera
Machaeranthera carnosa (Gray) Nesom
  shrubby alkali aster
Machaeranthera coulteri (Gray) B.L. Turner & Horne
  Silver Lake daisy
Machaeranthera gracilis (Nutt.) Shinners
  slender goldenweed
Machaeranthera juncea (Greene) Shinners
  rush bristleweed
Machaeranthera pinnatifida (Hook.) Shinners
  lacy tansyaster
Machaeranthera pinnatifida ssp. gooddingii (A. Nels.) B.L. Turner & Hartman
  Goodding's aster
Machaeranthera pinnatifida ssp. gooddingii var. gooddingii (A. Nels.) B.L. Turner & Hartman
  Goodding's aster
Machaeranthera tanacetifolia (Kunth) Nees
  tanseyleaf aster
Madia anomala Greene
  plumpseeded madia
Madia bolanderi (Gray) Gray
  Bolander's madia
Madia citrigracilis Keck
  Shasta tarweed
Madia citriodora Greene
  lemonscented madia
Madia doris-nilesiae T.W. & J.P. Nelson
  serpentine tarweed
Madia elegans D. Don ex Lindl.
  common madia
Madia elegans ssp. densifolia (Greene) Keck
  showy tarweed
Madia elegans ssp. elegans D. Don ex Lindl.
  common madia
Madia elegans ssp. vernalis Keck
  spring madia
Madia elegans ssp. wheeleri (Gray) Keck
  Wheeler's tarweed
Madia exigua (Sm.) Gray
  small tarweed
Madia glomerata Hook.
  mountain tarweed
Madia gracilis (Sm.) Keck & J. Clausen ex Applegate
  grassy tarweed
Madia gracilis ssp. gracilis (Sm.) Keck & J. Clausen ex Applegate
  grassy tarweed
Madia hallii Keck
  Hall's madia
Madia madioides (Nutt.) Greene
  woodland madia
Madia minima (Gray) Keck
  oppositeleaved tarweed
Madia nutans (Greene) Keck
  nodding madia
Madia radiata Kellogg
  golden madia
Madia rammii Greene
  Ramm's madia
Madia sativa Molina
  coast tarweed
Madia stebbinsii T.W. & J.P. Nelson
  Stebbins' tarweed
Madia subspicata Keck
  slender tarweed
Madia yosemitana Parry ex Gray
  Yosemite tarweed
Malacothrix californica DC.
  California desertdandelion
Malacothrix clevelandii Gray
  Cleveland's desertdandelion
Malacothrix coulteri Harvey & Gray
  snake's head
Malacothrix floccifera (DC.) Blake
  woolly desertdandelion
Malacothrix foliosa Gray
  leafy desertdandelion
Malacothrix foliosa ssp. foliosa Gray
  leafy desertdandelion
Malacothrix glabrata (Gray ex D.C. Eat.) Gray
  smooth desertdandelion
Malacothrix incana (Nutt.) Torr. & Gray
  dandelion
Malacothrix indecora Greene
  Santa Cruz Island desertdandelion
Malacothrix saxatilis (Nutt.) Torr. & Gray
  cliffaster
Malacothrix saxatilis var. arachnoidea (McGregor) E. Williams
  cliff desertdandelion
Malacothrix saxatilis var. commutata (Torr. & Gray) Ferris
  cliff desertdandelion
Malacothrix saxatilis var. implicata (Eastw.) Hall
  cliff desertdandelion
Malacothrix saxatilis var. saxatilis (Nutt.) Torr. & Gray
  cliff desertdandelion
Malacothrix saxatilis var. tenuifolia (Nutt.) Gray
  cliff desertdandelion
Malacothrix similis W.S. Davis & Raven
  twin desertdandelion
Malacothrix sonchoides (Nutt.) Torr. & Gray
  sowthistle desertdandelion
Malacothrix squalida Greene
  Santa Cruz desertdandelion
Malacothrix stebbinsii W.S. Davis & Raven
  Stebbins' desertdandelion
Malacothrix torreyi Gray
  Torrey's desertdandelion
Malperia tenuis S. Wats.
  brownturbans
Mantisalca salmantica (L.) Briq. & Cavillier
  dagger flower
Matricaria discoidea DC.
  disc mayweed
Matricaria matricarioides (Less.) Porter
  = Matricaria discoidea
Matricaria occidentalis Greene
  valley mayweed
Melampodium perfoliatum (Cav.) Kunth
  perfoliate blackfoot
Micropus amphibola Gray
  micropus
Micropus californicus Fisch. & C.A. Mey.
  q tips
Micropus californicus var. californicus Fisch. & C.A. Mey.
  slender cottonweed
Micropus californicus var. subvestitus Gray
  slender cottonweed
Microseris acuminata Greene
  Sierran foothill silverpuffs
Microseris bigelovii (Gray) Schultz-Bip.
  coastal silverpuffs
Microseris borealis (Bong.) Schultz-Bip.
  apargidium
Microseris campestris Greene
  San Joaquin silverpuffs
Microseris douglasii (DC.) Schultz-Bip.
  Douglas' silverpuffs
Microseris douglasii ssp. douglasii (DC.) Schultz-Bip.
  Douglas' silverpuffs
Microseris douglasii ssp. platycarpha (Gray) Chambers
  Douglas' silverpuffs
Microseris douglasii ssp. tenella (Gray) Chambers
  Douglas' silverpuffs
Microseris elegans Greene ex Gray
  elegant silverpuffs
Microseris howellii Gray
  Howell's silverpuffs
Microseris laciniata (Hook.) Schultz-Bip.
  cutleaf silverpuffs
Microseris laciniata ssp. laciniata (Hook.) Schultz-Bip.
  cutleaf silverpuffs
Microseris laciniata ssp. leptosepala (Nutt.) Chambers
  cutleaf silverpuffs
Microseris laciniata var. siskiyouensis Chambers
Microseris nutans (Hook.) Schultz-Bip.
  nodding microceris
Microseris nutans ssp. nutans (Hook.) Schultz-Bip.
  nodding silverpuffs
Microseris paludosa (Greene) J.T. Howell
  marsh silverpuffs
Microseris sylvatica (Benth.) Schultz-Bip.
  sylvan scorzonella
Monolopia gracilens Gray
  woodland false turtleback
Monolopia lanceolata Nutt.
  common false turtleback
Monolopia major DC.
  cupped false turtleback
Monolopia stricta Crum
  Crum's false turtleback
Monoptilon bellidiforme Torr. & Gray ex Gray
  daisy desertstar
Monoptilon bellioides (Gray) Hall
  Mojave desertstar
Nicolletia occidentalis Gray
  Mojave hole in the sand plant
Nothocalais alpestris (Gray) Chambers
  alpine lake prairiedandelion
Nothocalais troximoides (Gray) Greene
  weevil microseris
Onopordum acanthium L.
  Scotch cottonthistle
Onopordum tauricum Willd.
  taurus cottonthistle
Oreostemma alpigenum (Torr. & Gray) Nesom
Oreostemma alpigenum var. alpigenum (Torr. & Gray) Nesom
Oreostemma alpigenum var. andersonii (Gray) Nesom
Oreostemma elatum (Greene) Greene
Oreostemma peirsonii (C.W. Sharsmith) Nesom
Orochaenactis thysanocarpha (Gray) Coville
  California mountainpincushion
Osmadenia tenella Nutt.
  false rosinweed
Osteospermum ecklonis (DC.) Norl.
  blue and white daisybush
Osteospermum sinuatum (DC.) Norl.
  glandular cape marigold
Palafoxia arida B.L. Turner & Morris
  desert palafox
Palafoxia arida var. arida B.L. Turner & Morris
  desert palafox
Palafoxia arida var. gigantea (M.E. Jones) B.L. Turner & Morris
  desert palafox
Pectis papposa Harvey & Gray
  cinchweed fetidmarigold
Pentachaeta alsinoides Greene
  tiny pygmydaisy
Pentachaeta aurea Nutt.
  golden chaetopappa
Pentachaeta bellidiflora Greene
  whiteray pygmydaisy
Pentachaeta exilis (Gray) Gray
  meager pygmydaisy
Pentachaeta exilis ssp. aeolica Van Horn & Ornduff
  meager pygmydaisy
Pentachaeta exilis ssp. exilis (Gray) Gray
  meager pygmydaisy
Pentachaeta fragilis Brandeg.
  fragile pygmydaisy
Pentachaeta lyonii Gray
  Lyon's pygmydaisy
Pericome caudata Gray
  mountain leaftail
Perityle emoryi Torr.
  Emory's rocklily
Perityle inyoensis (Ferris) A. Powell
  Inyo rockdaisy
Perityle megalocephala (S. Wats.) J.F. Macbr.
  limestone rockdaisy
Perityle megalocephala var. megalocephala (S. Wats.) J.F. Macbr.
  limestone rockdaisy
Perityle megalocephala var. oligophylla A. Powell
  limestone rockdaisy
Perityle villosa (Blake) Shinners
  Hanaupah laphamia
Petasites frigidus (L.) Fries
  Arctic sweet coltsfoot
Petasites frigidus var. palmatus (Ait.) Cronq.
  Arctic sweet coltsfoot
Petasites palmatus (Ait.) Gray
  = Petasites frigidus var. palmatus
Petradoria pumila (Nutt.) Greene
  grassy rockgoldenrod
Peucephyllum schottii Gray
  Schott's pygmycedar
Phalacroseris bolanderi Gray
  Bolander's mock dandelion
Phalacroseris bolanderi var. bolanderi Gray
  Bolander's mock dandelion
Phalacroseris bolanderi var. coronata Hall
  Bolander's mock dandelion
Picris echioides L.
  bristly oxtongue
Pleurocoronis pluriseta (Gray) King & H.E. Robins.
  bush arrowleaf
Pluchea camphorata (L.) DC.
  camphor pluchea
Pluchea odorata (L.) Cass.
  sweetscent
Pluchea odorata var. odorata (L.) Cass.
  sweetscent
Pluchea purpurascens (Sw.) DC.
  = Pluchea odorata var. odorata
Pluchea sericea (Nutt.) Coville
  arrowweed
Porophyllum gracile Benth.
  slender poreleaf
Prenanthella exigua (Gray) Rydb.
  brightwhite
Psathyrotes annua (Nutt.) Gray
  annual psathyrotes
Psathyrotes ramosissima (Torr.) Gray
  velvet turtleback
Pseudobahia bahiifolia (Benth.) Rydb.
  Hartweg's blanketstem
Pseudobahia heermannii (Dur.) Rydb.
  foothill blanketstem
Pseudobahia peirsonii Munz
  Tulare blanketstem
Pseudognaphalium bicolor (Bioletti) A. Anderb.
Pseudognaphalium californicum (DC.) A. Anderb.
Pseudognaphalium canescens (DC.) W.A. Weber
Pseudognaphalium canescens ssp. canescens (DC.) W.A. Weber
Pseudognaphalium canescens ssp. microcephalum (Nutt.) Kartesz, comb. nov. ined.
Pseudognaphalium leucocephalum (Gray) A. Anderb.
Pseudognaphalium luteoalbum (L.) Hilliard & Burtt
Pseudognaphalium ramosissimum (Nutt.) A. Anderb.
Pseudognaphalium stramineum (Kunth) W.A. Weber
Pseudognaphalium viscosum (Kunth) W.A. Weber
Psilactis asteroides Gray
Psilocarphus brevissimus Nutt.
  short woollyheads
Psilocarphus brevissimus var. brevissimus Nutt.
  short woollyheads
Psilocarphus brevissimus var. multiflorus Cronq.
  dwarf woollyheads
Psilocarphus oregonus Nutt.
  Oregon woollyheads
Psilocarphus tenellus Nutt.
  slender woollyheads
Psilocarphus tenellus var. globiferus (Bertero ex DC.) Morefield
  slender woollyheads
Psilocarphus tenellus var. tenellus Nutt.
  slender woollyheads
Psilostrophe cooperi (Gray) Greene
  whitestem paperflower
Pulicaria paludosa Link
  Spanish false fleabane
Pyrrocoma apargioides (Gray) Greene
  alpineflames
Pyrrocoma carthamoides Hook.
  largeflower goldenweed
Pyrrocoma carthamoides var. carthamoides Hook.
  loved goldenweed
Pyrrocoma carthamoides var. cusickii (Gray) Kartesz & Gandhi
  narrowhead goldenweed
Pyrrocoma hirta (Gray) Greene
  tacky goldenweed
Pyrrocoma hirta var. hirta (Gray) Greene
  hairy goldenweed
Pyrrocoma lanceolata (Hook.) Greene
  lanceleaf goldenweed
Pyrrocoma lucida (Keck) Kartesz & Gandhi
  sticky goldenweed
Pyrrocoma racemosa (Nutt.) Torr. & Gray
  clustered goldenweed
Pyrrocoma racemosa var. paniculata (Nutt.) Kartesz & Gandhi
  clustered goldenweed
Pyrrocoma racemosa var. pinetorum (Keck) Kartesz & Gandhi
  clustered goldenweed
Pyrrocoma racemosa var. racemosa (Nutt.) Torr. & Gray
  clustered goldenweed
Pyrrocoma uniflora (Hook.) Greene
  plantain goldenweed
Pyrrocoma uniflora var. gossypina (Greene) Kartesz & Gandhi
  plantain goldenweed
Pyrrocoma uniflora var. uniflora (Hook.) Greene
  plantain goldenweed
Rafinesquia californica Nutt.
  California plumseed
Rafinesquia neomexicana Gray
  New Mexico plumseed
Raillardella argentea (Gray) Gray
  silky raillardella
Raillardella pringlei Greene
  showy raillardella
Raillardella scaposa (Gray) Gray
  stem raillardella
Raillardiopsis muirii (Gray) Rydb.
  Muir's raillardiopsis
Raillardiopsis scabrida (Eastw.) Rydb.
  leafy raillardiopsis
Rhagadiolus stellatus (L.) Gaertn.
  endive daisy
Rigiopappus leptocladus Gray
  wireweed
Rudbeckia californica Gray
  California coneflower
Rudbeckia californica var. californica Gray
  California coneflower
Rudbeckia glaucescens Eastw.
Rudbeckia hirta L.
  blackeyed Susan
Rudbeckia hirta var. pulcherrima Farw.
  blackeyed Susan
Rudbeckia klamathensis Cox & Urbatsch
Rudbeckia occidentalis Nutt.
  western coneflower
Rudbeckia occidentalis var. occidentalis Nutt.
  western coneflower
Santolina chamaecyparissus L.
  lavender cotton
Sanvitalia abertii Gray
  Albert's creeping zinnia
Sanvitalia procumbens Lam.
  Mexican creeping zinnia
Saussurea americana D.C. Eat.
  American saussurea
Schkuhria multiflora Hook. & Arn.
  manyflower false threadleaf
Scolymus hispanicus L.
  common goldenthistle
Scorzonera hispanica L.
  black salsify
Senecio aphanactis Greene
  chaparral ragwort
Senecio aronicoides DC.
  rayless groundsel
Senecio astephanus Greene
  San Gabriel ragwort
Senecio bernardinus Greene
  San Bernardino ragwort
Senecio bicolor (Willd.) Todaro
  silver ragwort
Senecio bicolor ssp. cineraria (DC.) Chater
  silver ragwort
Senecio blochmaniae Greene
  dune senecio
Senecio bolanderi Gray
  Bolander's ragwort
Senecio bolanderi var. bolanderi Gray
  Bolander's ragwort
Senecio breweri Burtt-Davy
  Brewer's ragwort
Senecio californicus DC.
  California ragwort
Senecio canus Hook.
  woolly groundsel
Senecio clarkianus Gray
  Clark's ragwort
Senecio clevelandii Greene
  Cleveland's ragwort
Senecio cymbalarioides Buek
  cleftleaf groundsel
Senecio elegans L.
  redpurple ragwort
Senecio eurycephalus Torr. & Gray ex Gray
  widehead groundsel
Senecio eurycephalus var. eurycephalus Torr. & Gray ex Gray
  Siskiyou ragwort
Senecio eurycephalus var. lewisrosei (J.T. Howell) T.M. Barkl.
  Lewis' groundsel
Senecio flaccidus Less.
  threadleaf ragwort
Senecio flaccidus var. douglasii (DC.) B.L. Turner & T.M. Barkl.
  Douglas' groundsel
Senecio flaccidus var. flaccidus Less.
  threadleaf groundsel
Senecio flaccidus var. monoensis (Greene) B.L. Turner & T.M. Barkl.
  Mono groundsel
Senecio fremontii Torr. & Gray
  Fremont's groundsel
Senecio fremontii var. fremontii Torr. & Gray
  Fremont's groundsel
Senecio fremontii var. occidentalis Gray
  western groundsel
Senecio ganderi T.M. Barkl. & Beauchamp
  Gander's ragwort
Senecio greenei Gray
  flame ragwort
Senecio hybridus (Willd.) Regel
  common ragwort
Senecio hydrophiloides Rydb.
  tall groundwel
Senecio hydrophilus Nutt.
  water groundsel
Senecio indecorus Greene
  elegant groundsel
Senecio integerrimus Nutt.
  lambstongue groundsel
Senecio integerrimus var. exaltatus (Nutt.) Cronq.
  Columbia groundsel
Senecio integerrimus var. major (Gray) Cronq.
  lambstongue groundsel
Senecio integerrimus var. ochroleucus (Gray) Cronq.
  paleyellow groundsel
Senecio ionophyllus Greene
  Tehachapi ragwort
Senecio jacobaea L.
  stinking willie
Senecio layneae Greene
  Layne's ragwort
Senecio lyonii Gray
  island senecio
Senecio macounii Greene
  Siskiyou Mountain ragwort
Senecio mikanioides Otto ex Walp.
  capeivy
Senecio mohavensis Gray
  Mojave ragwort
Senecio multilobatus Torr. & Gray ex Gray
  lobeleaf groundsel
Senecio pattersonensis Hoover
  Patterson's senecio
Senecio pauciflorus Pursh
  alpine groundsel
Senecio pseudaureus Rydb.
  falsegold groundsel
Senecio pseudaureus var. pseudaureus Rydb.
  falsegold groundsel
Senecio scorzonella Greene
  Sierran ragwort
Senecio serra Hook.
  butterweed groundsel
Senecio serra var. serra Hook.
  tall ragwort
Senecio spartioides Torr. & Gray
  broom groundsel
Senecio streptanthifolius Greene
  cleftleaf groundsel
Senecio streptanthifolius var. laetiflorus (Greene) J.F. Bain
  Rocky Mountain groundsel
Senecio sylvaticus L.
  woodland ragwort
Senecio triangularis Hook.
  arrowleaf groundsel
Senecio vulgaris L.
  common groundsel
Senecio werneriifolius (Gray) Gray
  hoary groundsel
Sericocarpus Greene
Sericocarpus oregonensis Nutt.
Sericocarpus oregonensis var. californicus (Dur.) Nesom
Sericocarpus oregonensis var. oregonensis Nutt.
Silybum marianum (L.) Gaertn.
  blessed milkthistle
Solidago californica Nutt.
  California goldenrod
Solidago canadensis L.
  Canada goldenrod
Solidago canadensis var. salebrosa (Piper) M.E. Jones
  salebrosa goldenrod
Solidago canadensis var. scabra Torr. & Gray
  Canada goldenrod
Solidago guiradonis Gray
  Guirado goldenrod
Solidago missouriensis Nutt.
  Missouri goldenrod
Solidago multiradiata Ait.
  mountain goldenrod
Solidago simplex Kunth
  Mt. Albert goldenrod
Solidago simplex ssp. simplex Kunth
  Mt. Albert goldenrod
Solidago simplex ssp. simplex var. nana (Gray) Ringius
  dwarf goldenrod
Solidago simplex ssp. simplex var. spathulata 
Solidago spathulata var. spathulata DC.
  coastaldune goldenrod
Solidago spectabilis (D.C. Eat.) Gray
  Nevada goldenrod
Solidago spectabilis var. confinis (Gray) Cronq.
Soliva sessilis Ruiz & Pavon
  field soliva
Sonchus arvensis L.
  field sowthistle
Sonchus asper (L.) Hill
  spiny sowthistle
Sonchus oleraceus L.
  common sowthistle
Sonchus tenerrimus L.
  slender sowthistle
Sphaeromeria cana (D.C. Eat.) Heller
  rod tansy
Sphaeromeria potentilloides (Gray) Heller
  powerful tansy
Sphaeromeria potentilloides var. potentilloides (Gray) Heller
  fivefinger chickensage
Stebbinoseris decipiens (Nutt.) Chambers
Stebbinoseris gen. nov. ined.
Stebbinoseris heterocarpa (Nutt.) Chambers
Stenotus acaulis (Nutt.) Nutt.
  stemless mock goldenweed
Stenotus acaulis var. acaulis (Nutt.) Nutt.
  stemless goldenweed
Stenotus stenophyllus (Gray) Greene
  narrowleaf goldenweed
Stephanomeria blairii Munz & Johnston
  Blair's cliffaster
Stephanomeria cichoriacea Gray
  chicoryleaf wirelettuce
Stephanomeria diegensis Gottlieb
  wreathplant
Stephanomeria elata Nutt.
  Santa Barbara wirelettuce
Stephanomeria exigua Nutt.
  small wirelettuce
Stephanomeria exigua ssp. carotifera (Hoover) Gottlieb
  whiteplume wirelettuce
Stephanomeria exigua ssp. coronaria (Greene) Gottlieb
  whiteplume wirelettuce
Stephanomeria exigua ssp. deanei (J.F. Macbr.) Gottlieb
  Deane's wirelettuce
Stephanomeria exigua ssp. exigua Nutt.
  small wirelettuce
Stephanomeria exigua ssp. macrocarpa Gottlieb
  whiteplume wirelettuce
Stephanomeria lactucina Gray
  lettuce wirelettuce
Stephanomeria paniculata Nutt.
  tufted wirelettuce
Stephanomeria parryi Gray
  Parry's wirelettuce
Stephanomeria pauciflora (Torr.) A. Nels.
  brownplume wirelettuce
Stephanomeria spinosa (Nutt.) S. Tomb
  thorn skeletonweed
Stephanomeria tenuifolia (Raf.) Hall
  narrowleaf wirelettuce
Stephanomeria tenuifolia var. myrioclada (D.C. Eat.) Cronq.
  narrowleaf wirelettuce
Stephanomeria tenuifolia var. tenuifolia (Raf.) Hall
  narrowleaf wirelettuce
Stephanomeria virgata Benth.
  rod wirelettuce
Stephanomeria virgata ssp. pleurocarpa (Greene) Gottlieb
  wand wirelettuce
Stephanomeria virgata ssp. virgata Benth.
  rod wirelettuce
Stylocline gnaphalioides Nutt.
  mountain neststraw
Stylocline micropoides Gray
  woollyhead neststraw
Stylocline psilocarphoides M.E. Peck
  baretwig stylocline
Stylocline sonorensis Wiggins
  Sonoran neststraw
Syntrichopappus fremontii Gray
  yellowray Fremontsgold
Syntrichopappus lemmonii (Gray) Gray
  pinkray Fremontsgold
Tagetes minuta L.
  muster John Henry
Tagetes patula L.
  French marigold
Tanacetum balsamita L.
  = Balsamita major
Tanacetum camphoratum Less.
  camphor tansy
Tanacetum parthenium (L.) Schultz-Bip.
  feverfew
Tanacetum vulgare L.
  common tansy
Taraxacum californicum Munz & Johnston
  California dandelion
Taraxacum laevigatum (Willd.) DC.
  rock dandelion
Taraxacum officinale G.H. Weber ex Wiggers
  common dandelion
Taraxacum officinale ssp. ceratophorum (Ledeb.) Schinz ex Thellung
  fleshy dandelion
Taraxacum officinale ssp. officinale G.H. Weber ex Wiggers
  wandering dandelion
Tessaria sericea (Nutt.) Shinners
  = Pluchea sericea
Tetradymia argyraea Munz & Roos
  striped cottonthorn
Tetradymia axillaris A. Nels.
  longspine horsebrush
Tetradymia canescens DC.
  spineless horsebrush
Tetradymia comosa Gray
  hairy horsebrush
Tetradymia glabrata Torr. & Gray
  littleleaf horsebrush
Tetradymia spinosa Hook. & Arn.
  shortspine horsebrush
Tetradymia stenolepis Greene
  Mojave cottonthorn
Tetradymia tetrameres (Blake) Strother
  fourpart horsebrush
Tetraneuris acaulis (Pursh) Greene
  stemless hymenoxys
Tetraneuris acaulis var. arizonica (Greene) Parker
  Arizona hymenoxys
Thelesperma gracile (Torr.) Gray
  = Thelesperma megapotamicum
Thelesperma megapotamicum (Spreng.) Kuntze
  Hopi tea greenthread
Thymophylla pentachaeta (DC.) Small
  fiveneedle pricklyleaf
Thymophylla pentachaeta var. belenidium (DC.) Strother
  fiveneedle pricklyleaf
Tolpis barbata (L.) Gaertn.
  European umbrella milkwort
Tonestus eximius (Hall) A. Nels. & J.F. Macbr.
  Lake Tahoe serpentweed
Tonestus lyallii (Gray) A. Nels.
  Lyall's goldenweed
Tonestus peirsonii (Keck) Nesom & Morgan
  Peirson's serpentweed
Townsendia condensata Parry ex Gray
  hairy townsendia
Townsendia leptotes (Gray) Osterhout
  common townsendia
Townsendia parryi D.C. Eat.
  Parry's townsend daisy
Townsendia scapigera D.C. Eat.
  tufted townsend daisy
Tracyina rostrata Blake
  Indian headdress
Tragopogon dubius Scop.
  yellow salsify
Tragopogon porrifolius L.
  salsify
Tragopogon pratensis L.
  meadow salsify
Trichocoronis wrightii (Torr. & Gray) Gray
  limestone bugheal
Trichoptilium incisum (Gray) Gray
  yellowdome
Trimorpha acris (L.) Nesom
  bitter boreal daisy
Trimorpha lonchophylla var. lonchophylla (Hook.) Nesom
  spearleaf fleabane
Trixis californica Kellogg
  California trixis
Uropappus linearifolius Nutt.
Urospermum picroides (L.) Scop. ex F.W. Schmidt
  prickly goldenfleece
Venegasia carpesioides DC.
  canyon sunflower
Venidium fastuosum (Jacq.) Stapf
  monarch of the veld
Verbesina dissita Gray
  bigleaf crownbeard
Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray
  golden crownbeard
Verbesina encelioides ssp. exauriculata (Robins. & Greenm.) J.R. Coleman
  golden crownbeard
Viguiera laciniata Gray
  torhleaf goldeneye
Viguiera parishii Greene
  Parish's goldeneye
Viguiera reticulata S. Wats.
  netvein goldeneye
Whitneya dealbata Gray
  mock leopardbane
Wyethia angustifolia (DC.) Nutt.
  California compassplant
Wyethia bolanderi (Gray) W.A. Weber
  Bolander's mulesears
Wyethia elata Hall
  Hall's mulesears
Wyethia glabra Gray
  Coast Range mulesears
Wyethia helenioides (DC.) Nutt.
  whitehead wyethia
Wyethia invenusta (Greene) W.A. Weber
  Coville's mulesears
Wyethia longicaulis Gray
  Humboldt mulesears
Wyethia mollis Gray
  woolly wyethia
Wyethia ovata Torr. & Gray ex Torr.
  southern mulesears
Wyethia reticulata Greene
  El Dorado mulesears
Xanthium spinosum L.
  spiny cockleburr
Xanthium strumarium L.
  rough cockleburr
Xanthocephalum 
  = Gutierrezia sarothrae
Xylorhiza cognata (Hall) T.J. Wats.
  Mecca aster
Xylorhiza orcuttii (Vasey & Rose) Greene
  Orcutt's aster
Xylorhiza tortifolia (Torr. & Gray) Greene
  Mojave aster
Xylorhiza tortifolia var. tortifolia (Torr. & Gray) Greene
  Mojave woodyaster

CONVOLVULACEAE
Calystegia atriplicifolia Hallier f.
  nightblooming false bindweed
Calystegia atriplicifolia ssp. atriplicifolia Hallier f.
  nightblooming false bindweed
Calystegia atriplicifolia ssp. buttensis Brummitt
  nightblooming false bindweed
Calystegia collina (Greene) Brummitt
  coast range false bindweed
Calystegia collina ssp. collina (Greene) Brummitt
  coast range false bindweed
Calystegia collina ssp. oxyphylla Brummitt
  coast range false bindweed
Calystegia collina ssp. tridactylosa (Eastw.) Brummitt
  coast range false bindweed
Calystegia collina ssp. venusta Brummitt
  coast range false bindweed
Calystegia longipes (S. Wats.) Brummitt
  Paiute false bindweed
Calystegia macrostegia (Greene) Brummitt
  island false bindweed
Calystegia macrostegia ssp. amplissima Brummitt
  island false bindweed
Calystegia macrostegia ssp. arida (Greene) Brummitt
  island false bindweed
Calystegia macrostegia ssp. cyclostegia (House) Brummitt
  island false bindweed
Calystegia macrostegia ssp. intermedia (Abrams) Brummitt
  island false bindweed
Calystegia macrostegia ssp. macrostegia (Greene) Brummitt
  island false bindweed
Calystegia macrostegia ssp. tenuifolia (Abrams) Brummitt
  island false bindweed
Calystegia malacophylla Greene
  Sierran false bindweed
Calystegia malacophylla ssp. malacophylla Greene
  Sierran false bindweed
Calystegia malacophylla ssp. malacophylla var. berryi (Eastw.) Brummitt
  Sierran false bindweed
Calystegia malacophylla ssp. malacophylla var. malacophylla Greene
  Sierran false bindweed
Calystegia malacophylla ssp. pedicellata (Jepson) Munz
  Sierran false bindweed
Calystegia occidentalis (Gray) Brummitt
  chaparral false bindweed
Calystegia occidentalis ssp. fulcrata (Gray) Brummitt
  chaparral false bindweed
Calystegia occidentalis ssp. occidentalis (Gray) Brummitt
  chaparral false bindweed
Calystegia occidentalis ssp. occidentalis var. occidentalis (Gray) Brummitt
  chaparral false bindweed
Calystegia occidentalis ssp. occidentalis var. tomentella (Greene) Brummitt
  chaparral false bindweed
Calystegia peirsonii (Abrams) Brummitt
  Peirson's false bindweed
Calystegia purpurata (Greene) Brummitt
  Pacific false bindweed
Calystegia purpurata ssp. purpurata (Greene) Brummitt
  Pacific false bindweed
Calystegia purpurata ssp. saxicola (Eastw.) Brummitt
  Pacific false bindweed
Calystegia purpurata ssp. solanensis (Jepson) Brummitt
  Solano false bindweed
Calystegia sepium (L.) R. Br.
  hedge false bindweed
Calystegia sepium ssp. americana (Sims) Brummitt
  hedge false bindweed
Calystegia sepium ssp. binghamiae (Greene) Brummitt
  Bingham's false bindweed
Calystegia sepium ssp. limnophila (Greene) Brummitt
  hedge false bindweed
Calystegia soldanella (L.) R. Br. ex Roemer & J.A. Schultes
  seashore false bindweed
Calystegia stebbinsii Brummitt
  Stebbins' false bindweed
Calystegia subacaulis Hook. & Arn.
  hillside false bindweed
Calystegia subacaulis ssp. episcopalis Brummitt
  hillside false bindweed
Calystegia subacaulis ssp. subacaulis Hook. & Arn.
  hillside false bindweed
Convolvulus althaeoides L.
  mallow bindweed
Convolvulus arvensis L.
  field bindweed
Convolvulus equitans Benth.
  Texas bindweed
Cressa truxillensis Kunth
  spreading alkaliweed
Cuscuta approximata Bab.
  alfalfa dodder
Cuscuta approximata var. urceolata (Kunze) Yuncker
  alfalfa dodder
Cuscuta brachycalyx (Yuncker) Yuncker
  San Joaquin dodder
Cuscuta brachycalyx var. apodanthera (Yuncker) Yuncker
  San Joaquin dodder
Cuscuta brachycalyx var. brachycalyx (Yuncker) Yuncker
  San Joaquin dodder
Cuscuta californica Hook. & Arn.
  chaparral dodder
Cuscuta californica var. apiculata Engelm.
  chaparral dodder
Cuscuta californica var. breviflora Engelm.
  California dodder
Cuscuta californica var. californica Hook. & Arn.
  California dodder
Cuscuta californica var. papillosa Yuncker
  chaparral dodder
Cuscuta ceanothi Behr
  canyon dodder
Cuscuta cephalanthi Engelm.
  buttonbush dodder
Cuscuta denticulata Engelm.
  desert dodder
Cuscuta denticulata var. denticulata Engelm.
  smalltooth dodder
Cuscuta denticulata var. vetchii (Brandeg.) T. Beliz
  Vetch's dodder
Cuscuta epithymum L.
  clover dodder
Cuscuta europaea L.
  greater dodder
Cuscuta howelliana Rubtzoff
  Boggs Lake dodder
Cuscuta indecora Choisy
  bigseed alfalfa dodder
Cuscuta indecora var. indecora Choisy
  bigseed alfalfa dodder
Cuscuta indecora var. neuropetala (Engelm.) A.S. Hitchc.
  bigseed dodder
Cuscuta obtusiflora Kunth
  Peruvian dodder
Cuscuta obtusiflora var. glandulosa Engelm.
  Peruvian dodder
Cuscuta pentagona Engelm.
  fiveangled dodder
Cuscuta pentagona var. pentagona Engelm.
  fiveangled dodder
Cuscuta planiflora Ten.
  smallseed dodder
Cuscuta salina Engelm.
  saltmarsh dodder
Cuscuta salina var. major Yuncker
  goldenthread
Cuscuta salina var. papillata Yuncker
  goldenthread
Cuscuta salina var. salina Engelm.
  saltmarsh dodder
Cuscuta suaveolens Ser.
  fringed dodder
Cuscuta suksdorfii Yuncker
  mountain dodder
Cuscuta suksdorfii var. subpedicellata Yuncker
  mountain dodder
Cuscuta suksdorfii var. suksdorfii Yuncker
  Suksdorf's dodder
Dichondra donnelliana Tharp & M.C. Johnston
  California ponysfoot
Dichondra occidentalis House
  western ponysfoot
Dichondra repens J.R. Forst.
  kidneyweed
Ipomoea cairica (L.) Sweet
  mile a minute vine
Ipomoea hederacea Jacq.
  ivyleaf morningglory
Ipomoea indica (Burm. f.) Merr.
  oceanblue morningglory
Ipomoea nil (L.) Roth
  whiteedge morningglory
Ipomoea purpurea (L.) Roth
  tall morningglory
Ipomoea triloba L.
  littlebell

CORNACEAE
Cornus canadensis L.
  bunchberry dogwood
Cornus glabrata Benth.
  brown dogwood
Cornus nuttallii Audubon ex Torr. & Gray
  Pacific dogwood
Cornus sericea L.
  redosier dogwood
Cornus sericea ssp. occidentalis (Torr. & Gray) Fosberg
  western dogwood
Cornus sericea ssp. sericea L.
  redosier dogwood
Cornus sessilis Torr. ex Dur.
  blackfruit dogwood
Cornus stolonifera Michx.
  = Cornus sericea ssp. sericea

CRASSULACEAE
Cotyledon orbiculata L.
  pig's ear
Crassula aquatica (L.) Schoenl.
  water pygmyweed
Crassula connata (Ruiz & Pavon) Berger
  sand pygmyweed
Crassula connata var. connata (Ruiz & Pavon) Berger
  sand pygmyweed
Crassula connata var. erectoides Bywater & Wickens
  sand pygmyweed
Crassula connata var. eremica (Jepson) Bywater & Wickens
  sand pygmyweed
Crassula connata var. subsimplex (S. Wats.) Bywater & Wickens
  sand pygmyweed
Crassula drummondii (Torr. & Gray) Fedde
  smallleaf pygmyweed
Crassula saginoides (Maxim.) Bywater & Wickens
  wrinkleseed pygmyweed
Crassula solierii (Gray) Meigen
  smoothseed pygmyweed
Crassula tillaea Lester-Garland
  moss pygmyweed
Dudleya abramsii Rose
  Abrams' liveforever
Dudleya abramsii ssp. abramsii Rose
  Abrams' liveforever
Dudleya abramsii ssp. affinis K. Nakai
  Abrams' liveforever
Dudleya abramsii ssp. bettinae (Hoover) Bartel
  Abrams' dudleya
Dudleya abramsii ssp. calcicola (Bartel & Shevock) K. Nakai
  Abrams' liveforever
Dudleya abramsii ssp. murina (Eastw.) Moran
  Abrams' liveforever
Dudleya abramsii ssp. parva (Rose & A. Davids.) Bartel
  Abrams' dudleya
Dudleya attenuata (S. Wats.) Moran
  tapertip liveforever
Dudleya attenuata ssp. orcuttii (Rose) Moran
  Orcutt's liveforever
Dudleya blochmaniae (Eastw.) Moran
  Blochman's liveforever
Dudleya blochmaniae ssp. blochmaniae (Eastw.) Moran
  Blochman's liveforever
Dudleya blochmaniae ssp. insularis (Moran) Moran
  Blochman's liveforever
Dudleya brevifolia (Moran) Moran
  shortleaf liveforever
Dudleya candelabrum Rose
  candleholder liveforever
Dudleya cespitosa (Haw.) Britt. & Rose
  sealettuce
Dudleya cymosa (Lem.) Britt. & Rose
  canyon liveforever
Dudleya cymosa ssp. agourensis K. Nakai
  canyon liveforever
Dudleya cymosa ssp. costafolia Bartel & Shevock
  canyon liveforever
Dudleya cymosa ssp. crebrifolia K. Nakai & Verity
  canyon liveforever
Dudleya cymosa ssp. cymosa (Lem.) Britt. & Rose
  canyon liveforever
Dudleya cymosa ssp. marcescens Moran
  canyon liveforever
Dudleya cymosa ssp. ovatifolia (Britt.) Moran
  canyon liveforever
Dudleya cymosa ssp. paniculata (Jepson) K. Nakai
  canyon liveforever
Dudleya cymosa ssp. pumila K. Nakai
  canyon liveforever
Dudleya cymosa ssp. setchellii (Jepson) Moran
  Setchell's liveforever
Dudleya densiflora (Rose) Moran
  San Gabriel Mountain liveforever
Dudleya edulis (Nutt.) Moran
  fingertips
Dudleya farinosa (Lindl.) Britt. & Rose
  powdery liveforever
Dudleya greenei Rose
  Greene's liveforever
Dudleya hassei (Rose) Moran
  Hasse's liveforever
Dudleya lanceolata (Nutt.) Britt. & Rose
  lanceleaf liveforever
Dudleya multicaulis (Rose) Moran
  manystem liveforever
Dudleya nesiotica (Moran) Moran
  Santa Cruz Island liveforever
Dudleya pulverulenta (Nutt.) Britt. & Rose
  chalk liveforever
Dudleya pulverulenta ssp. arizonica (Rose) Moran
Dudleya saxosa (M.E. Jones) Britt. & Rose
  Panamint liveforever
Dudleya saxosa ssp. aloides (Rose) Moran
  Panamint liveforever
Dudleya saxosa ssp. saxosa (M.E. Jones) Britt. & Rose
  Panamint liveforever
Dudleya stolonifera Moran
  Laguna Beach liveforever
Dudleya traskiae (Rose) Moran
  Santa Barbara Island liveforever
Dudleya variegata (S. Wats.) Moran
  variegated liveforever
Dudleya verityi K. Nakai
  Verity's liveforever
Dudleya virens (Rose) Moran
  alabaster plant
Dudleya viscida (S. Wats.) Moran
  sticky liveforever
Echeveria 
  = Dudleya 
Sedum album L.
  white stonecrop
Sedum albomarginatum Clausen
  Feather River stonecrop
Sedella congdonii (Eastw.) Britt. & Rose
  Congdon's mock stonecrop
Sedum divergens S. Wats.
  Pacific stonecrop
Sedum eastwoodiae (Britt.) Berger
Sedum integrifolium (Raf.) A. Nels.
  ledge stonecrop
Sedum integrifolium ssp. integrifolium (Raf.) A. Nels.
  entireleaf stonecrop
Sedum integrifolium ssp. procerum Clausen
  entireleaf stonecrop
Sedum lanceolatum Torr.
  spearleaf stonecrop
Sedum laxum (Britt.) Berger
  roseflower stonecrop
Sedum laxum ssp. flavidum Denton
  roseflower stonecrop
Sedum laxum ssp. heckneri (M.E. Peck) Clausen
  Heckner's stonecrop
Sedum lanceolatum ssp. lanceolatum Torr.
  spearleaf stonecrop
Sedum laxum ssp. laxum (Britt.) Berger
  roseflower stonecrop
Sedum lanceolatum ssp. subalpinum (Blank.) Clausen
  subalpine stonecrop
Sedella leiocarpa H.K. Sharsmith
  Lake County mock stonecrop
Sedum niveum A. Davids.
  Davidson's stonecrop
Sedum obtusatum Gray
  Sierran stonecrop
Sedum oblanceolatum Clausen
  oblongleaf stonecrop
Sedum obtusatum ssp. boreale Clausen
  Sierran stonecrop
Sedum obtusatum ssp. obtusatum Gray
  Sierran stonecrop
Sedum obtusatum ssp. paradisum Denton
  Paradise stonecrop
Sedum obtusatum ssp. retusum (Rose) Clausen
  Sierran stonecrop
Sedum oreganum Nutt.
  kings crown
Sedum oregonense (S. Wats.) M.E. Peck
  cream stonecrop
Sedum oreganum ssp. oreganum Nutt.
  Oregon stonecrop
Sedella pentandra H.K. Sharsmith
  Mt. Hamilton mock stonecrop
Sedum praealtum DC.
  green cockscomb
Sedella pumila (Benth.) Britt. & Rose
  Sierran mock stonecrop
Sedum radiatum S. Wats.
  Coast Range stonecrop
Sedum radiatum ssp. depauperatum Clausen
  Coast Range stonecrop
Sedum radiatum ssp. radiatum S. Wats.
  Coast Range stonecrop
Sedum spathulifolium Hook.
  broadleaf stonecrop
Sedum spathulifolium ssp. pruinosum (Britt.) Clausen & Uhl
  broadleaf stonecrop
Sedum spathulifolium ssp. purdyi (Jepson) Clausen
  Purdy's stonecrop
Sedum spathulifolium ssp. spathulifolium Hook.
  broadleaf stonecrop
Sedum spathulifolium ssp. yosemitense (Britt.) Clausen
  Yosemite stonecrop
Sedum stenopetalum Pursh
  wormleaf stonecrop
Sedum stenopetalum ssp. monanthum (Suksdorf) Clausen
  wormleaf stonecrop
Sedum stenopetalum ssp. stenopetalum Pursh
  wormleaf stonecrop
Tillaea .
  = Crassula 

CROSSOSOMATACEAE
Crossosoma bigelovii S. Wats.
  ragged rockflower
Crossosoma bigelovii var. bigelovii S. Wats.
  ragged rockflower
Crossosoma californicum Nutt.
  California rockflower
Glossopetalon pungens Brandeg.
  dwarf greasebush
Glossopetalon spinescens Gray
  spiny greasebush
Glossopetalon spinescens var. aridum M.E. Jones
  spiny greasebush

CRUCIFERAE
Alyssum alyssoides (L.) L.
  pale madwort
Alyssum minus (L.) Rothm.
Alyssum minus var. micranthum (C.A. Mey.) Dudley
Alyssum minus var. strigosum (Banks & Soland.) Zohary
Anelsonia eurycarpa (Gray) J.F. Macbr. & Payson
  daggerpod
Arabidopsis thaliana (L.) Heynh.
  mouseear cress
Arabis X divaricarpa A. Nels. (pro sp.)
  spreadingpod rockcress
Arabis aculeolata Greene
  Waldo rockcress
Arabis blepharophylla Hook. & Arn.
  rose rockcress
Arabis bodiensis Rollins
  Bodie Hills rockcress
Arabis breweri S. Wats.
  Brewer's rockcress
Arabis breweri var. austiniae (Greene) Rollins
  Brewer's rockcress
Arabis breweri var. breweri S. Wats.
  Brewer's rockcress
Arabis breweri var. pecuniaria Rollins
  Brewer's rockcress
Arabis cobrensis M.E. Jones
  sagebrush rockcress
Arabis constancei Rollins
  Constance's rockcress
Arabis davidsonii Greene
  Davidson's rockcress
Arabis dispar M.E. Jones
  pinyon rockcress
Arabis drummondii Gray
  Drummond's rockcress
Arabis fernaldiana Rollins
  park rockcress
Arabis fernaldiana var. stylosa (S. Wats.) Rollins
  park rockcress
Arabis glabra (L.) Bernh.
  tower rockcress
Arabis glabra var. furcatipilis M. Hopkins
  tower rockcress
Arabis glabra var. glabra (L.) Bernh.
  tower rockcress
Arabis glaucovalvula M.E. Jones
  bluepod rockcress
Arabis hirsuta (L.) Scop.
  hairy rockcress
Arabis hirsuta var. eschscholtziana (Andrz.) Rollins
  Eschscholtz's hairy rockcress
Arabis hirsuta var. glabrata Torr. & Gray
  mountain rockcress
Arabis hoffmannii (Munz) Rollins
  Hoffmann's rockcress
Arabis holboellii Hornem.
  Holboell's rockcress
Arabis holboellii var. pendulocarpa (A. Nels.) Rollins
  dropseed rockcress
Arabis holboellii var. pinetorum (Tidestrom) Rollins
  Holboell's rockcress
Arabis holboellii var. retrofracta (Graham) Rydb.
  second rockcress
Arabis inyoensis Rollins
  Inyo rockcress
Arabis johnstonii Munz
  Johnston's rockcress
Arabis koehleri T.J. Howell
  Koehler's rockcress
Arabis koehleri var. stipitata Rollins
  Koehler's rockcress
Arabis lemmonii S. Wats.
  Lemmon's rockcress
Arabis lemmonii var. depauperata (A. Nels. & Kennedy) Rollins
  soldier rockcress
Arabis lemmonii var. lemmonii S. Wats.
  Lemmon's rockcress
Arabis lignifera A. Nels.
  desert rockcress
Arabis lyallii S. Wats.
  Lyall's rockcress
Arabis lyallii var. lyallii S. Wats.
  Lyall's rockcress
Arabis lyallii var. nubigena (J.F. Macbr. & Payson) Rollins
  Lyall's rockcress
Arabis macdonaldiana Eastw.
  MacDonald rockcress
Arabis microphylla Nutt.
  littleleaf rockcress
Arabis microphylla var. microphylla Nutt.
  smallleaf rockcress
Arabis modesta Rollins
  Rouge Canyon rockcress
Arabis oregana Rollins
  Oregon rockcress
Arabis parishii S. Wats.
  dwarf rockcress
Arabis perennans S. Wats.
  perennial rockcress
Arabis pinzliae Rollins
  Boundary Peak rockcress
Arabis platysperma Gray
  pioneer rockcress
Arabis platysperma var. howellii (S. Wats.) Jepson
  Howell's pioneer rockcress
Arabis platysperma var. platysperma Gray
  pioneer rockcress
Arabis puberula Nutt.
  silver rockcress
Arabis pulchra M.E. Jones ex S. Wats.
  beauty rockcress
Arabis pulchra var. gracilis M.E. Jones
  desert rockcress
Arabis pulchra var. munciensis M.E. Jones
  Munci rockcress
Arabis pulchra var. pulchra M.E. Jones ex S. Wats.
  desert rockcress
Arabis pygmaea Rollins
  Tulare County rockcress
Arabis rectissima Greene
  bristlyleaf rockcress
Arabis repanda S. Wats.
  Yosemite rockcress
Arabis repanda var. greenei Jepson
  Greene's rockcress
Arabis repanda var. repanda S. Wats.
  Yosemite rockcress
Arabis rigidissima Rollins
  Trinity Mountain rockcress
Arabis rigidissima var. rigidissima Rollins
  Trinity Mountain rockcress
Arabis shockleyi Munz
  Shockley's rockcress
Arabis sparsiflora Nutt.
  sicklepod rockcress
Arabis sparsiflora var. arcuata (Nutt.) Rollins
  elegant rockcress
Arabis sparsiflora var. californica Rollins
  California rockcress
Arabis sparsiflora var. sparsiflora Nutt.
  sicklepod rockcress
Arabis sparsiflora var. subvillosa (S. Wats.) Rollins
  hairystem rockcress
Arabis subpinnatifida S. Wats.
  Klamath rockcress
Arabis suffrutescens S. Wats.
  woody rockcress
Arabis suffrutescens var. horizontalis (Greene) Rollins
  horizontal woody rockcress
Arabis suffrutescens var. suffrutescens S. Wats.
  woody rockcress
Arabis tiehmii Rollins
  Carson Range rockcress
Armoracia rusticana P.G. Gaertn., B. Mey. & Scherb.
  horseradish
Athysanus pusillus (Hook.) Greene
  common sandweed
Aubrietia deltoidea (L.) DC.
  lilacbush
Barbarea orthoceras Ledeb.
  American yellowrocket
Barbarea verna (P. Mill.) Aschers.
  early yellowrocket
Barbarea vulgaris Ait. f.
  garden yellowrocket
Brassica alba Rabenh., non L.
  = Sinapis alba
Brassica eruca L.
  = Eruca vesicaria ssp. sativa
Brassica fruticulosa Cyr.
  Mediterranean cabbage
Brassica juncea (L.) Czern.
  India mustard
Brassica nigra (L.) W.D.J. Koch
  black mustard
Brassica oleracea L.
  cabbage
Brassica rapa L.
  rape mustard
Brassica rapa var. rapa L.
  birdrape
Brassica tournefortii Gouan
  Asian mustard
Cakile edentula (Bigelow) Hook.
  American searocket
Cakile edentula ssp. edentula (Bigelow) Hook.
  American searocket
Cakile edentula ssp. edentula var. edentula (Bigelow) Hook.
  American searocket
Cakile maritima Scop.
  European searocket
Camelina microcarpa DC.
  littlepod falseflax
Camelina sativa (L.) Crantz
  gold-of-pleasure
Capsella bursa-pastoris (L.) Medik.
  shepherd's purse
Cardamine angulata Hook.
  seaside bittercress
Cardamine bellidifolia L.
  alpine bittercress
Cardamine bellidifolia var. pachyphylla Coville & Leib.
  alpine bittercress
Cardamine breweri S. Wats.
  Brewer's bittercress
Cardamine breweri var. breweri S. Wats.
  Brewer's bittercress
Cardamine breweri var. orbicularis (Greene) Detling
  Sierran bittercress
Cardamine californica (Nutt.) Greene
  milkmaids
Cardamine californica var. californica (Nutt.) Greene
  milkmaids
Cardamine californica var. cardiophylla (Greene) Rollins
Cardamine californica var. cuneata (Nutt.) Rollins
Cardamine californica var. sinuata (Greene) O.E. Schulz
  milkmaids
Cardamine cordifolia Gray
  heartleaf bittercress
Cardamine cordifolia var. lyallii (S. Wats.) A. Nels. & J.F. Macbr.
Cardamine nuttallii Greene
  Nuttall's toothwort
Cardamine nuttallii var. gemmata (Greene) Rollins
Cardamine nuttallii var. nuttallii Greene
  palmate toothwort
Cardamine oligosperma Nutt.
  Idaho bittercress
Cardamine pachystigma (S. Wats.) Rollins
Cardamine pachystigma var. pachystigma (S. Wats.) Rollins
Cardamine pensylvanica Muhl. ex Willd.
  Pennsylvania bittercress
Cardaria chalapensis (L.) Hand.-Maz.
Cardaria draba (L.) Desv.
  pepperweed whitetop
Cardaria draba ssp. draba (L.) Desv.
  heartpod hoarycress
Cardaria pubescens (C.A. Mey.) Jarmolenko
  hairy whitetop
Caulanthus amplexicaulis S. Wats.
  claspingleaf wild cabbage
Caulanthus amplexicaulis var. amplexicaulis S. Wats.
  claspingleaf wild cabbage
Caulanthus amplexicaulis var. barbarae (J.T. Howell) Munz
  claspingleaf wild cabbage
Caulanthus anceps Payson
  royal wild cabbage
Caulanthus cooperi (S. Wats.) Payson
  Cooper's wild cabbage
Caulanthus coulteri S. Wats.
  Coulter's wild cabbage
Caulanthus crassicaulis (Torr.) S. Wats.
  thickstem wild cabbage
Caulanthus crassicaulis var. crassicaulis (Torr.) S. Wats.
  thickstem wild cabbage
Caulanthus glaucus S. Wats.
  glaucous wild cabbage
Caulanthus hallii Payson
  Hall's wild cabbage
Caulanthus heterophyllus (Nutt.) Payson
  San Diego wild cabbage
Caulanthus inflatus S. Wats.
  desert candle
Caulanthus lasiophyllus var. lasiophyllus (Hook. & Arn.) Payson
  coast range wild cabbage
Caulanthus major (M.E. Jones) Payson
  slender wild cabbage
Caulanthus pilosus S. Wats.
  hairy wild cabbage
Caulanthus simulans Payson
  Payson's wild cabbage
Caulostramina jaegeri (Rollins) Rollins
  cliffdweller
Chorispora tenella (Pallas) DC.
  crossflower
Cochlearia groenlandica L.
  Danish scurvygrass
Cochlearia officinalis L.
  common scurvygrass
Conringia orientalis (L.) Dumort.
  hare's ear mustard
Coronopus didymus (L.) Sm.
  lesser swinecress
Coronopus squamatus (Forsk.) Aschers.
  greater swinecress
Cusickiella douglasii (Gray) Rollins
  alkali false whitlowgrass
Cusickiella quadricostata (Rollins) Rollins
  Bodie Hills false whitlowgrass
Descurainia californica (Gray) O.E. Schulz
  Sierran tansymustard
Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn
  mountain tansymustard
Descurainia incana ssp. incana (Bernh. ex Fisch. & C.A. Mey.) Dorn
  mountain tansymustard
Descurainia incana ssp. incisa (Engelm.) Kartesz & Gandhi
  mountain tansymustard
Descurainia incana ssp. viscosa (Rydb.) Kartesz & Gandhi
  mountain tansymustard
Descurainia obtusa (Greene) O.E. Schulz
  blunt tansymustard
Descurainia obtusa ssp. adenophora (Woot. & Standl.) Detling
  blunt tansymustard
Descurainia paradisa (A. Nels. & Kennedy) O.E. Schulz
  paradise tansymustard
Descurainia pinnata (Walt.) Britt.
  western tansymustard
Descurainia pinnata ssp. filipes (Gray) Detling
  western tansymustard
Descurainia pinnata ssp. glabra (Woot. & Standl.) Detling
  western tansymustard
Descurainia pinnata ssp. halictorum (Cockerell) Detling
  western tansymustard
Descurainia pinnata ssp. intermedia (Rydb.) Detling
  western tansymustard
Descurainia pinnata ssp. menziesii (DC.) Detling
  Menzies's tansymustard
Descurainia pinnata ssp. pinnata (Walt.) Britt.
  western tansymustard
Descurainia sophia (L.) Webb ex Prantl
  herb sophia
Diplotaxis muralis (L.) DC.
  annual wallrocket
Diplotaxis tenuifolia (L.) DC.
  perennial wallrocket
Dithyrea californica Harvey
  California shieldpod
Dithyrea maritima (A. Davids.) A. Davids.
  beach shieldpod
Draba albertina Greene
  slender whitlowgrass
Draba asterophora Payson
  Lake Tahoe whitlowgrass
Draba asterophora var. asterophora Payson
  Lake Tahoe whitlowgrass
Draba asterophora var. macrocarpa C.L. Hitchc.
  Lake Tahoe whitlowgrass
Draba aureola S. Wats.
  Mt. Lassen whitlowgrass
Draba breweri S. Wats.
  cushion whitlowgrass
Draba breweri var. cana (Rydb.) Rollins
Draba carnosula O.E. Schulz
  Mt. Eddy whitlowgrass
Draba corrugata S. Wats.
  Southern California whitlowgrass
Draba corrugata var. corrugata S. Wats.
  Southern California whitlowgrass
Draba corrugata var. saxosa (A. Davids.) Munz & Johnston
  Southern California whitlowgrass
Draba crassifolia Graham
  snowbed whitlowgrass
Draba crassifolia var. crassifolia Graham
  snowbed whitlowgrass
Draba cruciata Payson
  Mineral King whitlowgrass
Draba cruciata var. cruciata Payson
  Mineral King whitlowgrass
Draba cuneifolia Nutt. ex Torr. & Gray
  wedgeleaf whitlowgrass
Draba cuneifolia var. cuneifolia Nutt. ex Torr. & Gray
  wedgeleaf whitlowgrass
Draba cuneifolia var. integrifolia S. Wats.
  wedgeleaf whitlowgrass
Draba cuneifolia var. sonorae (Greene) Parish
  Sonora whitlowgrass
Draba densifolia Nutt.
  denseleaf whitlowgrass
Draba fladnizensis Wulfen
  Austrian whitlowgrass
Draba howellii S. Wats.
  rosette whitlowgrass
Draba incrassata (Rollins) Rollins & Price
  whitlowgrass
Draba lemmonii S. Wats.
  granite whitlowgrass
Draba lemmonii var. lemmonii S. Wats.
  Lemmon's whitlowgrass
Draba lonchocarpa Rydb.
  lancepod whitlowgrass
Draba lonchocarpa var. lonchocarpa Rydb.
  lancepod whitlowgrass
Draba nemorosa L.
  woodland whitlowgrass
Draba nemorosa var. nemorosa L.
  woodland whitlowgrass
Draba oligosperma Hook.
  fewseed whitlowgrass
Draba paysonii J.F. Macbr.
  Payson's whitlowgrass
Draba paysonii var. treleasii (O.E. Schulz) C.L. Hitchc.
  Trelease's whitlowgrass
Draba platycarpa Torr. & Gray
  broadpod whitlowgrass
Draba praealta Greene
  tall whitlowgrass
Draba pterosperma Payson
  wingedseed whitlowgrass
Draba reptans (Lam.) Fern.
  Carolina whitlowgrass
Draba sharsmithii Rollins & Price
  Sharsmith's draba
Draba sierrae C.W. Sharsmith
  Sierran whitlowgrass
Draba verna L.
  spring whitlowgrass
Eruca vesicaria (L.) Cav.
  rocketsalad
Eruca vesicaria ssp. sativa (P. Mill.) Thellung
  rocketsalad
Erucastrum gallicum (Willd.) O.E. Schulz
  common dogmustard
Erysimum ammophilum Heller
  coastal wallflower
Erysimum capitatum (Dougl. ex Hook.) Greene
  sanddune wallflower
Erysimum capitatum var. angustatum (Greene) G. Rossb.
  sanddune wallflower
Erysimum capitatum var. argillosum (Greene) R.J. Davis
  sanddune wallflower
Erysimum capitatum var. bealianum (Jepson) G. Rossb.
  sanddune wallflower
Erysimum capitatum var. capitatum (Dougl. ex Hook.) Greene
  sanddune wallflower
Erysimum capitatum var. lompocense (G. Rossb.) Kartesz, comb. nov. ined.
Erysimum capitatum var. perenne (S. Wats. ex Coville) R.J. Davis
  sanddune wallflower
Erysimum cheiranthoides L.
  wormseed wallflower
Erysimum cheiri (L.) Crantz
  Aegean wallflower
Erysimum franciscanum G. Rossb.
  San Francisco wallflower
Erysimum franciscanum var. franciscanum G. Rossb.
  San Francisco wallflower
Erysimum insulare Greene
  island wallflower
Erysimum insulare ssp. suffrutescens (Abrams) Price
Erysimum menziesii (Hook.) Wettst.
  Menzies' wallflower
Erysimum menziesii ssp. concinnum (Eastw.) Price
Erysimum repandum L.
  spreading wallflower
Erysimum suffrutescens var. suffrutescens (Abrams) G. Rossb.
  shrubby wallflower
Erysimum teretifolium Eastw.
  Santa Cruz Island wallflower
Euclidium syriacum (L.) Ait. f.
  Syrian mustard
Guillenia flavescens (Hook.) Greene
Guillenia lasiophylla (Hook. & Arn.) Greene
Guillenia lemmonii (S. Wats.) R. Buck
Halimolobos diffusa (Gray) O.E. Schulz
  spreading fissurewort
Halimolobos jaegeri (Munz) Rollins
Halimolobos virgata (Nutt.) O.E. Schulz
  rod halimolobos
Hesperis matronalis L.
  dames rocket
Heterodraba unilateralis (M.E. Jones) Greene
  ladiestongue mustard
Hirschfeldia incana (L.) Lagreze-Fossat
  shortpod mustard
Hutchinsia procumbens (L.) Desv.
  prostrate hutchinsia
Iberis umbellata L.
  globe candytuft
Idahoa scapigera (Hook.) A. Nels. & J.F. Macbr.
  oldstem idahoa
Ionopsidium acaule (Desf.) Reichenb.
  false diamondflower
Isatis tinctoria L.
  Dyer's woad
Lepidium bourgeauanum Thellung
  Bourgeau's pepperweed
Lepidium campestre (L.) Ait. f.
  field pepperweed
Lepidium densiflorum Schrad.
  common pepperweed
Lepidium densiflorum var. densiflorum Schrad.
  common pepperweed
Lepidium densiflorum var. macrocarpum Mulligan
  bigseed pepperweed
Lepidium densiflorum var. pubecarpum (A. Nels.) Thellung
  babyseed pepperweed
Lepidium densiflorum var. ramosum (A. Nels.) Thellung
  miner's pepperweed
Lepidium dictyotum Gray
  net pepperweed
Lepidium dictyotum var. acutidens Gray
  alkali pepperwort
Lepidium dictyotum var. dictyotum Gray
  alkali pepperweed
Lepidium flavum Torr.
  yellow pepperweed
Lepidium flavum var. felipense C.L. Hitchc.
  yellow pepperweed
Lepidium flavum var. flavum Torr.
  yellow pepperweed
Lepidium fremontii S. Wats.
  desert pepperweed
Lepidium jaredii Brandeg.
  Jared's pepperweed
Lepidium lasiocarpum Nutt.
  shaggyfruit pepperweed
Lepidium lasiocarpum var. lasiocarpum Nutt.
  hairypod pepperweed
Lepidium latifolium L.
  broadleaved pepperweed
Lepidium latipes Hook.
  San Diego pepperweed
Lepidium montanum Nutt.
  mountain pepperweed
Lepidium montanum var. canescens (Thellung) C.L. Hitchc.
  mountain pepperweed
Lepidium montanum var. jonesii (Rydb.) C.L. Hitchc.
  Jones' pepperweed
Lepidium montanum var. montanum Nutt.
  mountain pepperweed
Lepidium nitidum Nutt.
  shining pepperweed
Lepidium nitidum var. howellii C.L. Hitchc.
  Howell's pepperweed
Lepidium nitidum var. nitidum Nutt.
  shining pepperweed
Lepidium nitidum var. oreganum (T.J. Howell ex Greene) C.L. Hitchc.
  shining pepperweed
Lepidium oblongum Small
  veiny pepperweed
Lepidium oxycarpum Torr. & Gray
  forked pepperweed
Lepidium perfoliatum L.
  clasping pepperweed
Lepidium pinnatifidum Ledeb.
  featherleaf pepperweed
Lepidium ramosissimum A. Nels.
  manybranched pepperweed
Lepidium sativum L.
  gardencress pepperweed
Lepidium strictum (S. Wats.) Rattan
  upright pepperweed
Lepidium thurberi Woot.
  Thurber's pepperweed
Lepidium virginicum L.
  Virginia pepperweed
Lepidium virginicum var. medium (Greene) C.L. Hitchc.
  medium pepperweed
Lepidium virginicum var. pubescens (Greene) Thellung
  hairy pepperweed
Lepidium virginicum var. robinsonii (Thellung) C.L. Hitchc.
  Robinson's pepperweed
Lepidium virginicum var. virginicum L.
  Virginia pepperweed
Lesquerella cordiformis (Rollins) Rollins & Shaw
  Wassuk Range bladderpod
Lesquerella gordonii (Gray) S. Wats.
  Gordon's bladderpod
Lesquerella kingii S. Wats.
  King bladderpod
Lesquerella kingii ssp. bernardina (Munz) Munz
  Wallowa bladderpod
Lesquerella kingii ssp. kingii S. Wats.
  King bladderpod
Lesquerella kingii ssp. kingii var. kingii S. Wats.
  King bladderpod
Lesquerella kingii ssp. latifolia (A. Nels.) Rollins & Shaw
  Wallowa bladderpod
Lesquerella occidentalis S. Wats.
  western bladderpod
Lesquerella occidentalis ssp. occidentalis S. Wats.
  western bladderpod
Lesquerella wardii S. Wats.
  Ward's bladderpod
Lobularia maritima (L.) Desv.
  seaside lobularia
Lunaria annua L.
  annual honesty
Lyrocarpa Hook. & Harvey ex Harvey
  lyrepod
Lyrocarpa coulteri Hook. & Harvey ex Harvey
  Coulter's lyrepod
Lyrocarpa coulteri var. palmeri (S. Wats.) Rollins
  Palmer's lyrepod
Malcolmia africana (L.) Ait. f.
  African mustard
Matthiola incana (L.) Ait. f.
  tenweeks stock
Matthiola longipetala (Vent.) DC.
  night scented stock
Nasturtium armoracia (L.) Fries
  = Armoracia rusticana
Phoenicaulis cheiranthoides Nutt.
  wallflower phoenicaulis
Physaria chambersii Rollins
  Chambers' twinpod
Physaria newberryi Gray
  Newberry's twinpod
Physaria newberryi var. newberryi Gray
  Newberry's twinpod
Polyctenium fremontii (S. Wats.) Greene
  Fremont's polyctenium
Polyctenium fremontii var. fremontii (S. Wats.) Greene
  Fremont's combleaf
Raphanus raphanistrum L.
  wild radish
Raphanus sativus L.
  wild radish
Rapistrum rugosum (L.) All.
  annual bastardcabbage
Rorippa austriaca (Crantz) Bess.
  Austrian yellowcress
Rorippa columbiae (Suksdorf ex B.L. Robins.) Suksdorf ex T.J. Howell
  Columbian yellowcress
Rorippa curvipes Greene
  bluntleaf yellowcress
Rorippa curvipes var. curvipes Greene
  bluntleaf yellowcress
Rorippa curvipes var. truncata (Jepson) Rollins
Rorippa curvisiliqua (Hook.) Bess. ex Britt.
  curvepod yellowcress
Rorippa curvisiliqua var. curvisiliqua (Hook.) Bess. ex Britt.
  curvepod yellowcress
Rorippa curvisiliqua var. occidentalis (Greene) R. Stuckey
  western yellowcress
Rorippa curvisiliqua var. orientalis R. Stuckey
  oriental yellowcress
Rorippa curvisiliqua var. procumbens R. Stuckey
  curvepod yellowcress
Rorippa gambelii (S. Wats.) Rollins & Al-Shehbaz
  Gambel's yellowcress
Rorippa microphylla (Boenn. ex Reichenb.) Hyl. ex A.& D. Love
  onerow yellowcress
Rorippa nasturtium-aquaticum (L.) Hayek
  watercress
Rorippa palustris (L.) Bess.
  bog yellowcress
Rorippa palustris ssp. fernaldiana (Butters & Abbe) Jonsell
  Fernald's yellowcress
Rorippa palustris ssp. hispida (Desv.) Jonsell
  hispid yellowcress
Rorippa palustris ssp. occidentalis (S. Wats.) Abrams
  western bog yellowcress
Rorippa sinuata (Nutt.) A.S. Hitchc.
  spreading yellowcress
Rorippa sphaerocarpa (Gray) Britt.
  roundfruit yellowcress
Rorippa subumbellata Rollins
  Lake Tahoe yellowcress
Rorippa tenerrima Greene
  Modoc yellowcress
Rorippa teres (Michx.) R. Stuckey
  southern marsh yellowcress
Sibara deserti (M.E. Jones) Rollins
  desert winged rockcress
Sibara filifolia (Greene) Greene
  Santa Cruz Island winged rockcress
Sibara rosulata Rollins
  California winged rockcress
Sibara virginica (L.) Rollins
  Virginia winged rockcress
Sinapis alba L.
  white mustard
Sinapis arvensis L.
  charlock mustard
Sinapis nigra L.
  = Brassica nigra
Sisymbrium altissimum L.
  tall tumblemustard
Sisymbrium irio L.
  Londonrocket
Sisymbrium officinale (L.) Scop.
  hedgemustard
Sisymbrium orientale L.
  Indian hedgemustard
Smelowskia ovalis M.E. Jones
  alpine false candytuft
Smelowskia ovalis var. congesta Rollins
  alpine false candytuft
Stanfordia californica S. Wats.
  St. Francis cabbage
Stanleya elata M.E. Jones
  Panamint princesplume
Stanleya pinnata (Pursh) Britt.
  desert princesplume
Stanleya pinnata var. inyoensis (Munz & Roos) Reveal
  Inyo princesplume
Stanleya pinnata var. pinnata (Pursh) Britt.
  pinnate princesplume
Stanleya viridiflora Nutt.
  green princesplume
Streptanthella longirostris (S. Wats.) Rydb.
  longbeak streptanthella
Streptanthus albidus Greene
  Metcalf Canyon jewelflower
Streptanthus albidus ssp. albidus Greene
  Metcalf Canyon jewelflower
Streptanthus albidus ssp. peramoenus (Greene) Kruckeberg
  Metcalf Canyon jewelflower
Streptanthus barbatus S. Wats.
  Pacific jewelflower
Streptanthus barbiger Greene
  bearded jewelflower
Streptanthus batrachopus J.L. Morrison
  Mt. Tamalpais jewelflower
Streptanthus bernardinus (Greene) Parish
  Laguna Mountain jewelflower
Streptanthus brachiatus F.W. Hoffmann
  Socrates Mine jewelflower
Streptanthus brachiatus ssp. brachiatus F.W. Hoffmann
  Socrates Mine jewelflower
Streptanthus brachiatus ssp. hoffmanii Dolan & LaPre
  Hoffman's jewelflower
Streptanthus breweri Gray
  Brewer's jewelflower
Streptanthus breweri var. breweri Gray
  Brewer's jewelflower
Streptanthus callistus J.L. Morrison
  Mt. Hamilton jewelflower
Streptanthus campestris S. Wats.
  southern jewelflower
Streptanthus cordatus Nutt.
  heartleaf twistflower
Streptanthus cordatus var. cordatus Nutt.
  heartleaf twistflower
Streptanthus cordatus var. piutensis J.T. Howell
  Piute jewelflower
Streptanthus diversifolius S. Wats.
  variableleaf jewelflower
Streptanthus drepanoides Kruckeberg & Morrison
  serpentine jewelflower
Streptanthus farnsworthianus J.T. Howell
  Evalyn's jewelflower
Streptanthus fenestratus (Greene) J.T. Howell
  Tehipite Valley jewelflower
Streptanthus glandulosus Hook.
  bristly jewelflower
Streptanthus glandulosus ssp. glandulosus Hook.
  bristly jewelflower
Streptanthus glandulosus ssp. pulchellus (Greene) Kruckeberg
  bristly jewelflower
Streptanthus glandulosus ssp. secundus (Greene) Kruckeberg
  bristly jewelflower
Streptanthus glandulosus ssp. secundus var. hoffmanii Kruckeberg
  bristly jewelflower
Streptanthus glandulosus ssp. secundus var. secundus (Greene) Kruckeberg
  bristly jewelflower
Streptanthus glandulosus ssp. secundus var. sonomensis Kruckeberg
  Sonoma jewelflower
Streptanthus gracilis Eastw.
  alpine jewelflower
Streptanthus hesperidis Jepson
  Brewer's jewelflower
Streptanthus hispidus Gray
  Mt. Diablo jewelflower
Streptanthus howellii S. Wats.
  Howell's jewelflower
Streptanthus insignis Jepson
  plumed jewelflower
Streptanthus insignis ssp. insignis Jepson
  plumed jewelflower
Streptanthus insignis ssp. lyonii Kruckeberg & Morrison
  Lyon's jewelflower
Streptanthus morrisonii F.W. Hoffmann
  Morrison's jewelflower
Streptanthus morrisonii ssp. morrisonii F.W. Hoffmann
  Morrison's jewelflower
Streptanthus niger Greene
  Tiburon jewelflower
Streptanthus oliganthus Rollins
  Masonic Mountain jewelflower
Streptanthus polygaloides Gray
  milkwort jewelflower
Streptanthus tortuosus Kellogg
  shieldplant
Streptanthus tortuosus var. flavescens Jepson
  shieldplant
Streptanthus tortuosus var. optatus Jepson
  shieldplant
Streptanthus tortuosus var. orbiculatus (Greene) Hall
  shieldplant
Streptanthus tortuosus var. pallidus Jepson
  shieldplant
Streptanthus tortuosus var. suffrutescens (Greene) Jepson
  shieldplant
Streptanthus tortuosus var. tortuosus Kellogg
  shieldplant
Subularia aquatica L.
  waterawlwort
Subularia aquatica var. americana (Mulligan & Calder) Boivin
  American waterawlwort
Teesdalia coronopifolia (Bergeret) Thellung
  lesser shepherdscress
Thelypodium brachycarpum Torr.
  shortpod thelypody
Thelypodium crispum Greene ex Payson
  crisped thelypody
Thelypodium flexuosum B.L. Robins.
  nodding thelypody
Thelypodium howellii S. Wats.
  Howell's thelypody
Thelypodium integrifolium (Nutt.) Endl. ex Walp.
  entireleaved thelypody
Thelypodium integrifolium ssp. affine (Greene) Al-Shehbaz
  entireleaved thelypody
Thelypodium integrifolium ssp. complanatum Al-Shehbaz
  entireleaved thelypody
Thelypodium laciniatum (Hook.) Endl. ex Walp.
  cutleaf thelypody
Thelypodium milleflorum A. Nels.
  manyflower thelypody
Thelypodium stenopetalum S. Wats.
  slenderpetal thelypody
Thlaspi arvense L.
  field pennycress
Thlaspi californicum S. Wats.
Thlaspi montanum L.
  alpine pennycress
Thlaspi montanum var. montanum L.
  alpine pennycress
Thysanocarpus curvipes Hook.
  sand fringepod
Thysanocarpus laciniatus Nutt.
  Santa Cruz Island fringepod
Thysanocarpus radians Benth.
  ribbed fringepod
Tropidocarpum capparideum Greene
  alkali pod
Tropidocarpum gracile Hook.
  dobiepod

CUCURBITACEAE
Brandegea bigelovii (S. Wats.) Cogn.
  desert starvine
Bryonia cretica L.
  Cretan bryony
Bryonia cretica ssp. dioica (Jacq.) Tutin
  Cretan bryony
Bryonia dioica Jacq.
  = Bryonia cretica ssp. dioica
Citrullus lanatus (Thunb.) Matsumura & Nakai
  watermelon
Citrullus lanatus var. citroides (Bailey) Mansf.
  watermelon
Citrullus lanatus var. lanatus (Thunb.) Matsumura & Nakai
  watermelon
Cucumis melo L.
  cantaloupe
Cucumis myriocarpus E. Mey. ex Naud.
  gooseberry gourd
Cucurbita digitata Gray
  fingerleaf gourd
Cucurbita foetidissima Kunth
  Missouri gourd
Cucurbita palmata S. Wats.
  coyote gourd
Cucurbita pepo L.
  field pumpkin
Marah fabaceus (Naud.) Naud. ex Greene
  California manroot
Marah fabaceus var. agrestis (Greene) Stocking
  California manroot
Marah fabaceus var. fabaceus (Naud.) Naud. ex Greene
  California manroot
Marah horridus (Congd.) S.T. Dunn
  Sierran manroot
Marah macrocarpus (Greene) Greene
  Cucamonga manroot
Marah macrocarpus var. macrocarpus (Greene) Greene
  Cucamonga manroot
Marah macrocarpus var. major (S.T. Dunn) Stocking
  Cucamonga manroot
Marah macrocarpus var. micranthus Stocking
  Cucamonga manroot
Marah oreganus (Torr. ex S. Wats.) T.J. Howell
  coastal manroot
Marah watsonii (Cogn.) Greene
  taw manroot

CUPRESSACEAE
Calocedrus decurrens (Torr.) Florin
  incense cedar
Chamaecyparis lawsoniana (A. Murr.) Parl.
  Port Orford cedar
Chamaecyparis nootkatensis (D. Don) Spach
  Alaska cedar
Cupressus abramsiana C.B. Wolf
  Santa Cruz Island cypress
Cupressus arizonica Greene
  Arizona cypress
Cupressus arizonica ssp. nevadensis (Abrams) E. Murray
Cupressus arizonica ssp. stephensonii (C.B. Wolf) Beauchamp
Cupressus bakeri Jepson
  Modoc cypress
Cupressus bakeri ssp. bakeri Jepson
  Baker's cypress
Cupressus forbesii Jepson
  tecate cypress
Cupressus goveniana Gord.
  Gowen cypress
Cupressus goveniana ssp. pygmaea (Lemmon) Bartel
  pygmy cypress
Cupressus macnabiana A. Murr.
  MacNab's cypress
Cupressus macrocarpa Hartw. ex Gord.
  Monterey cypress
Cupressus sargentii Jepson
  Sargent's cypress
Juniperus californica Carr.
  California juniper
Juniperus communis L.
  common juniper
Juniperus communis var. montana Ait.
  common juniper
Juniperus occidentalis Hook.
  western juniper
Juniperus occidentalis var. australis (Vasek) A.& N. Holmgren
  western juniper
Juniperus occidentalis var. occidentalis Hook.
  western juniper
Juniperus osteosperma (Torr.) Little
  Utah juniper
Libocedrus decurrens Torr.
  = Calocedrus decurrens
Thuja plicata Donn ex D. Don
  western redcedar

CYMODOCEACEAE
Halodule beaudettei (den Hartog) den Hartog
  shoalweed

DATISCACEAE
Datisca glomerata (K. Presl) Baill.
  Durango root

DENNSTAEDTIACEAE
Pteridium aquilinum (L.) Kuhn
  western brackenfern
Pteridium aquilinum var. pubescens Underwood
  hairy brackenfern

DIPSACACEAE
Dipsacus fullonum L.
  Fuller's teasel
Dipsacus sativus (L.) Honckeny
  Indian teasel
Scabiosa atropurpurea L.
  mourningbride
Scabiosa stellata L.
  starflower pincushions

DROSERACEAE
Drosera anglica Huds.
  English sundew
Drosera rotundifolia L.
  roundleaf sundew

DRYOPTERIDACEAE
Athyrium americanum (Butters) Maxon
  alpine ladyfern
Athyrium filix-femina (L.) Roth
  common ladyfern
Athyrium filix-femina ssp. cyclosorum (Rupr.) C. Christens.
  subarctic ladyfern
Cyrtomium falcatum (L. f.) K. Presl
  Japanese netvein hollyfern
Cystopteris fragilis (L.) Bernh.
  brittle bladderfern
Cystopteris tenuis (Michx.) Desv.
  upland brittle bladderfern
Dryopteris arguta (Kaulfuss) Watt
  coastal woodfern
Dryopteris carthusiana (Vill.) H.P. Fuchs
  spinulose woodfern
Dryopteris expansa (K. Presl) Fraser-Jenkins & Jermy
  spreading woodfern
Dryopteris filix-mas (L.) Schott
  male fern
Polystichum californicum (D.C. Eat.) Diels
  California swordfern
Polystichum dudleyi Maxon
  Dudley's swordfern
Polystichum imbricans (D.C. Eat.) D.H. Wagner
  narrowleaf swordfern
Polystichum imbricans ssp. curtum (Ewan) D.H. Wagner
  narrowleaf swordfern
Polystichum imbricans ssp. imbricans (D.C. Eat.) D.H. Wagner
  narrowleaf swordfern
Polystichum kruckebergii W.H. Wagner
  Kruckeberg's hollyfern
Polystichum lemmonii Underwood
  Lemmon's hollyfern
Polystichum lonchitis (L.) Roth
  northern hollyfern
Polystichum munitum (Kaulfuss) K. Presl
  western swordfern
Polystichum scopulinum (D.C. Eat.) Maxon
  mountain hollyfern
Woodsia oregana D.C. Eat.
  Oregon woodsia
Woodsia oregana ssp. oregana D.C. Eat.
  Oregon cliff fern
Woodsia plummerae Lemmon
  Plummer's cliff fern
Woodsia scopulina D.C. Eat.
  Rocky Mountain woodsia

ELAEAGNACEAE
Elaeagnus angustifolia L.
  Russian olive
Shepherdia argentea (Pursh) Nutt.
  silver buffaloberry

ELATINACEAE
Bergia texana (Hook.) Seub. ex Walp.
  Texas bergia
Elatine ambigua Wight
  Asian waterwort
Elatine americana (Pursh) Arn.
  American waterwort
Elatine brachysperma Gray
  shortseed waterwort
Elatine californica Gray
  California waterwort
Elatine chilensis Gray
  Chilean waterwort
Elatine heterandra Mason
  mosquito waterwort
Elatine rubella Rydb.
  southwestern waterwort
Elatine triandra Schkuhr
  threestamen waterwort

EMPETRACEAE
Empetrum nigrum L.
  black crowberry
Empetrum nigrum ssp. hermaphroditum (Lange ex Hagerup) Bocher
  black crowberry

EPHEDRACEAE
Ephedra aspera Engelm. ex S. Wats.
Ephedra californica S. Wats.
  California jointfir
Ephedra californica var. californica S. Wats.
  California jointfir
Ephedra fasciculata A. Nels.
  Arizona jointfir
Ephedra fasciculata var. fasciculata A. Nels.
  Arizona jointfir
Ephedra funerea Coville & Morton
Ephedra nevadensis S. Wats.
  Nevada jointfir
Ephedra nevadensis var. nevadensis S. Wats.
  Nevada jointfir
Ephedra trifurca Torr. ex S. Wats.
  longleaf jointfir
Ephedra viridis Coville
  mormon tea
Ephedra viridis var. viridis Coville
  mormon tea

EQUISETACEAE
Equisetum X ferrissii Clute (pro sp.)
  Ferriss' horsetail
Equisetum arvense L.
  field horsetail
Equisetum hyemale L.
  scouringrush horsetail
Equisetum hyemale var. affine (Engelm.) A.A. Eat.
  scouringrush horsetail
Equisetum laevigatum A. Braun
  smooth horsetail
Equisetum palustre L.
  marsh horsetail
Equisetum telmateia Ehrh.
  giant horsetail
Equisetum telmateia var. braunii (Milde) Milde
  giant horsetail

ERICACEAE
Arbutus menziesii Pursh
  Pacific madrone
Arctostaphylos X benitoensis J.B. Roof (pro sp.)
  Benito manzanita
Arctostaphylos X campbelliae Eastw. (pro sp.)
  Campbell manzanita
Arctostaphylos X cinerea T.J. Howell (pro sp.)
  Del Norte manzanita
Arctostaphylos X helleri Eastw. (pro sp.)
  Heller's manzanita
Arctostaphylos X jepsonii Eastw. (pro sp.)
  Jepson's manzanita
Arctostaphylos X laxiflora Heller (pro sp.)
  lazyflower manzanita
Arctostaphylos X pacifica J.B. Roof (pro sp.)
  Pacific manzanita
Arctostaphylos X parvifolia T.J. Howell (pro sp.)
  gravel manzanita
Arctostaphylos X repens (J.T. Howell) P.V. Wells
  PMC manzanita
Arctostaphylos andersonii Gray
  heartleaf manzanita
Arctostaphylos auriculata Eastw.
  Mount Diablo manzanita
Arctostaphylos bakeri Eastw.
  Baker's manzanita
Arctostaphylos bakeri ssp. bakeri Eastw.
  Baker's manzanita
Arctostaphylos bakeri ssp. sublaevis P.V. Wells
  Baker's manzanita
Arctostaphylos canescens Eastw.
  hoary manzanita
Arctostaphylos canescens ssp. canescens Eastw.
  hoary manzanita
Arctostaphylos canescens ssp. sonomensis (Eastw.) P.V. Wells
  Sonoma manzanita
Arctostaphylos catalinae P.V. Wells
  Santa Catalina Island manzanita
Arctostaphylos columbiana Piper
  hairy manzanita
Arctostaphylos columbiana ssp. columbiana Piper
  hairy manzanita
Arctostaphylos confertiflora Eastw.
  Santa Rosa Island manzanita
Arctostaphylos cruzensis J.B. Roof
  Arroyo de la Cruz manzanita
Arctostaphylos densiflora M.S. Baker
  Vine Hill manzanita
Arctostaphylos edmundsii J.T. Howell
  Little Sur manzanita
Arctostaphylos glandulosa Eastw.
  Eastwood's manzanita
Arctostaphylos glandulosa ssp. adamsii (Munz) Munz
  Adams' manzanita
Arctostaphylos glandulosa ssp. crassifolia (Jepson) P.V. Wells
  Eastwood's manzanita
Arctostaphylos glandulosa ssp. glandulosa Eastw.
  black manzanita
Arctostaphylos glandulosa ssp. glaucomollis P.V. Wells
  Eastwood's manzanita
Arctostaphylos glandulosa ssp. mollis (J.E. Adams) P.V. Wells
  Eastwood's manzanita
Arctostaphylos glandulosa ssp. zacaensis (Eastw.) P.V. Wells
  Zaca's manzanita
Arctostaphylos glauca Lindl.
  bigberry manzanita
Arctostaphylos glutinosa Schreib.
  Schreiber's manzanita
Arctostaphylos hispidula T.J. Howell
  Gasquet manzanita
Arctostaphylos hookeri G. Don
  Hooker's manzanita
Arctostaphylos hookeri ssp. franciscana (Eastw.) Munz
  Hooker's manzanita
Arctostaphylos hookeri ssp. hearstiorum (Hoover & J.B. Roof) P.V. Wells
  Hearst's manzanita
Arctostaphylos hookeri ssp. hookeri G. Don
  Hooker's manzanita
Arctostaphylos hooveri P.V. Wells
  Hoover's manzanita
Arctostaphylos imbricata Eastw.
  San Bruno Mountain manzanita
Arctostaphylos imbricata ssp. imbricata Eastw.
  San Bruno Mountain manzanita
Arctostaphylos insularis Greene ex Parry
  island manzanita
Arctostaphylos klamathensis S.W. Edwards, Keeler-Wolf & W. Knight
  Klamath manzanita
Arctostaphylos luciana P.V. Wells
  Santa Lucia manzanita
Arctostaphylos malloryi (W. Knight & Gankin) P.V. Wells
Arctostaphylos manzanita Parry
  whiteleaf manzanita
Arctostaphylos manzanita ssp. elegans (Eastw.) P.V. Wells
  Konocti manzanita
Arctostaphylos manzanita ssp. glaucescens P.V. Wells
  whiteleaf manzanita
Arctostaphylos manzanita ssp. laevigata (Eastw.) Munz
  big manzanita
Arctostaphylos manzanita ssp. manzanita Parry
  whiteleaf manzanita
Arctostaphylos manzanita ssp. roofii (Gankin) P.V. Wells
  Roof's manzanita
Arctostaphylos manzanita ssp. wieslanderi P.V. Wells
  Wieslander's manzanita
Arctostaphylos mendocinoensis P.V. Wells
  Mendocino manzanita
Arctostaphylos mewukka Merriam
  Indian manzanita
Arctostaphylos mewukka ssp. truei (W. Knight) P.V. Wells
Arctostaphylos montaraensis J.B. Roof
Arctostaphylos montereyensis Hoover
  Monterey manzanita
Arctostaphylos morroensis Wies. & Schreib.
  Morro manzanita
Arctostaphylos myrtifolia Parry
  Ione manzanita
Arctostaphylos nevadensis Gray
  pinemat manzanita
Arctostaphylos nevadensis ssp. knightii (Gankin) P.V. Wells
  Knight's manzanita
Arctostaphylos nevadensis ssp. nevadensis Gray
  pinemat manzanita
Arctostaphylos nisseniana Merriam
  Eldorado manzanita
Arctostaphylos nummularia Gray
  glossyleaf manzanita
Arctostaphylos obispoensis Eastw.
  serpentine manzanita
Arctostaphylos otayensis Wies. & Schreib.
  Otay manzanita
Arctostaphylos pajaroensis (J.E. Adams ex McMinn) J.E. Adams
  Pajaro manzanita
Arctostaphylos pallida Eastw.
  Alameda manzanita
Arctostaphylos parryana Lemmon
  Parry manzanita
Arctostaphylos patula Greene
  greenleaf manzanita
Arctostaphylos pechoensis (Dudley ex Abrams) Dudley ex Munz
  Pecho manzanita
Arctostaphylos peninsularis P.V. Wells
  peninsular manzanita
Arctostaphylos pilosula Jepson & Wies. ex Jepson
  La Panza manzanita
Arctostaphylos pilosula ssp. pilosula Jepson & Wies. ex Jepson
  La Panza manzanita
Arctostaphylos pringlei Parry
  Pringle manzanita
Arctostaphylos pringlei ssp. drupacea (Parry) P.V. Wells
  pinkbracted manzanita
Arctostaphylos pringlei ssp. pringlei Parry
  Pringle manzanita
Arctostaphylos pumila Nutt.
  sandmat manzanita
Arctostaphylos pungens Kunth
  pointleaf manzanita
Arctostaphylos pungens var. montana (Eastw.) Munz
Arctostaphylos pungens var. ravenii (P.V. Wells) J.B. Roof
Arctostaphylos purissima P.V. Wells
  fly manzanita
Arctostaphylos refugioensis Gankin
  refugio manzanita
Arctostaphylos regismontana Eastw.
  heartleaf manzanita
Arctostaphylos rudis Jepson & Wies. ex Jepson
  shagbark manzanita
Arctostaphylos silvicola Jepson & Wies. ex Jepson
  silverleaf manzanita
Arctostaphylos stanfordiana Parry
  Stanford's manzanita
Arctostaphylos stanfordiana ssp. raichei W. Knight
  Stanford's manzanita
Arctostaphylos stanfordiana ssp. stanfordiana Parry
  Stanford's manzanita
Arctostaphylos tomentosa (Pursh) Lindl.
  woollyleaf manzanita
Arctostaphylos tomentosa ssp. bracteosa (DC.) J.E. Adams
  hairy manzanita
Arctostaphylos tomentosa ssp. crinita (J.E. Adams ex McMinn) Gankin
  hairy manzanita
Arctostaphylos tomentosa ssp. crustacea (Eastw.) P.V. Wells
  brittleleaf manzanita
Arctostaphylos tomentosa ssp. eastwoodiana P.V. Wells
  Eastwood manzanita
Arctostaphylos tomentosa ssp. insulicola P.V. Wells
  hairy manzanita
Arctostaphylos tomentosa ssp. rosei (Eastw.) P.V. Wells
  rosy manzanita
Arctostaphylos tomentosa ssp. subcordata (Eastw.) P.V. Wells
  Santa Cruz Island manzanita
Arctostaphylos tomentosa ssp. tomentosa (Pursh) Lindl.
  woollyleaf manzanita
Arctostaphylos uva-ursi (L.) Spreng.
  kinnikinnick
Arctostaphylos virgata Eastw.
  Bolinas manzanita
Arctostaphylos viridissima (Eastw.) McMinn
  whitehair manzanita
Arctostaphylos viscida Parry
  sticky whiteleaf manzanita
Arctostaphylos viscida ssp. mariposa (Dudley) P.V. Wells
  Mariposa manzanita
Arctostaphylos viscida ssp. pulchella (T.J. Howell) P.V. Wells
  whiteleaf manzanita
Arctostaphylos viscida ssp. viscida Parry
  sticky whiteleaf manzanita
Arctostaphylos wellsii Knight
  Wells' manzanita
Cassiope mertensiana (Bong.) D. Don
  western moss heather
Chimaphila Pursh
  prince's pine
Chimaphila menziesii (R. Br. ex D. Don) Spreng.
  little prince's pine
Chimaphila umbellata (L.) W. Bart.
  pipsissewa
Chimaphila umbellata ssp. occidentalis (Rydb.) Hulten
  pipsissewa
Comarostaphylis diversifolia (Parry) Greene
  summer holly
Comarostaphylis diversifolia ssp. diversifolia (Parry) Greene
  summer holly
Comarostaphylis diversifolia ssp. planifolia (Jepson) G. Wallace ex Thorne
  summer holly
Erica lusitanica K. Rudolphi
  Spanish heath
Gaultheria humifusa (Graham) Rydb.
  alpine spicywintergreen
Gaultheria ovatifolia Gray
  western teaberry
Gaultheria shallon Pursh
  salal
Kalmia microphylla (Hook.) Heller
  alpine laurel
Kalmia polifolia Wangenh.
  bog laurel
Kalmia polifolia ssp. microphylla (Hook.) Calder & Taylor
  = Kalmia microphylla
Ledum X columbianum Piper (pro sp.)
  coast Labradortea
Ledum glandulosum Nutt.
  Western Labradortea
Leucothoe davisiae Torr. ex Gray
  Sierra laurel
Menziesia ferruginea Sm.
  rusty menziesia
Moneses uniflora (L.) Gray
  single delight
Moneses uniflora ssp. reticulata (Nutt.) Calder & Taylor
  single delight
Ornithostaphylos oppositifolia (Parry) Small
  Baja birdbush
Orthilia secunda (L.) House
  sidebells wintergreen
Phyllodoce breweri (Gray) Heller
  purple mountainheath
Phyllodoce empetriformis (Sm.) D. Don
  pink mountainheath
Pyrola asarifolia Michx.
  liverleaf wintergreen
Pyrola asarifolia ssp. asarifolia Michx.
  liverleaf wintergreen
Pyrola asarifolia ssp. bracteata (Hook.) Haber
  pink wintergreen
Pyrola chlorantha Sw.
  greenflowered wintergreen
Pyrola minor L.
  snowline wintergreen
Pyrola picta Sm.
  whiteveined wintergreen
Pyrola secunda L.
  = Orthilia secunda
Rhododendron macrophyllum D. Don ex G. Don
  Pacific rhododendron
Rhododendron occidentale (Torr. & Gray ex Torr.) Gray
  western azalea
Rhododendron occidentale var. occidentale (Torr. & Gray ex Torr.) Gray
  western azalea
Rhododendron occidentale var. paludosum Jepson
  western azalea
Rhododendron occidentale var. sonomense (Greene) Rehd.
  Sonoma azalea
Vaccinium cespitosum Michx.
  dwarf blueberry
Vaccinium cespitosum var. cespitosum Michx.
  tall bilberry
Vaccinium cespitosum var. paludicola (Camp) Hulten
  dwarf blueberry
Vaccinium macrocarpon Ait.
  cranberry
Vaccinium membranaceum Dougl. ex Torr.
  blue huckleberry
Vaccinium ovatum Pursh
  evergreen huckleberry
Vaccinium ovatum var. ovatum Pursh
  evergreen huckleberry
Vaccinium ovatum var. saporosum Jepson
  evergreen huckleberry
Vaccinium parvifolium Sm.
  red huckleberry
Vaccinium scoparium Leib. ex Coville
  grouse whortleberry
Vaccinium uliginosum L.
  bog blueberry
Xylococcus bicolor Nutt.
  mission manzanita

ERIOCAULACEAE
Eriocaulon cinereum R. Br.
  ashy pipewort
Eriocaulon microcephalum Kunth
  smallhead pipewort

EUPHORBIACEAE
Acalypha californica Benth.
  California copperleaf
Acalypha pringlei S. Wats.
  = Acalypha californica
Argythamnia adenophora Gray
  glandular silverbush
Argythamnia californica Brandeg.
  California silverbush
Argythamnia lanceolata (Benth.) Muell.-Arg.
  narrowleaf silverbush
Argythamnia neomexicana Muell.-Arg.
  New Mexico silverbush
Argythamnia serrata (Torr.) Muell.-Arg.
  Yuma silverbush
Bernardia myricifolia (Scheele) S. Wats.
  mouse's eye
Chamaesyce abramsiana (L.C. Wheeler) Koutnik
  Abrams' sandmat
Chamaesyce albomarginata (Torr. & Gray) Small
  whitemargin sandmat
Chamaesyce arizonica (Engelm.) Arthur
  Arizona sandmat
Chamaesyce fendleri (Torr. & Gray) Small
  Fendler's sandmat
Chamaesyce fendleri var. fendleri (Torr. & Gray) Small
  Fendler's sandmat
Chamaesyce glyptosperma (Engelm.) Small
  ribseed sandmat
Chamaesyce hooveri (L.C. Wheeler) Koutnik
  Hoover's sandmat
Chamaesyce maculata (L.) Small
  spotted sandmat
Chamaesyce melanadenia (Torr.) Millsp.
  squaw sandmat
Chamaesyce micromera (Boiss.) Woot. & Standl.
  Sonoran sandmat
Chamaesyce nutans (Lag.) Small
  eyebane
Chamaesyce ocellata (Dur. & Hilg.) Millsp.
  Contura Creek sandmat
Chamaesyce ocellata ssp. arenicola (Parish) Thorne
  Contura Creek sandmat
Chamaesyce ocellata ssp. ocellata (Dur. & Hilg.) Millsp.
  Contura Creek sandmat
Chamaesyce ocellata ssp. rattanii (S. Wats.) Koutnik
  Rattan's sandmat
Chamaesyce parryi (Engelm.) Rydb.
  Parry's sandmat
Chamaesyce parishii (Greene) Millsp. ex Parish
  Parish's sandmat
Chamaesyce pediculifera (Engelm.) Rose & Standl.
  Carrizo Mountain sandmat
Chamaesyce platysperma (Engelm. ex S. Wats.) Shinners
  flatseed sandmat
Chamaesyce polycarpa (Benth.) Millsp. ex Parish
  smallseed sandmat
Chamaesyce polycarpa var. hirtella (Boiss.) Millsp. ex Parish
  smallseed sandmat
Chamaesyce polycarpa var. polycarpa (Benth.) Millsp. ex Parish
  smallseed sandmat
Chamaesyce prostrata (Ait.) Small
  prostrate sandmat
Chamaesyce revoluta (Engelm.) Small
  threadstem sandmat
Chamaesyce serpens (Kunth) Small
  matted sandmat
Chamaesyce serpyllifolia (Pers.) Small
  thymeleaf sandmat
Chamaesyce serrula (Engelm.) Woot. & Standl.
  sawtooth sandmat
Chamaesyce setiloba (Engelm. ex Torr.) Millsp. ex Parish
  Yuma sandmat
Chamaesyce serpyllifolia ssp. hirtella (Engelm. ex S. Wats.) Koutnik
  thymeleaf sandmat
Chamaesyce serpyllifolia ssp. serpyllifolia (Pers.) Small
  thymeleaf sandmat
Chamaesyce vallis-mortae Millsp.
  Death Valley sandmat
Croton californicus Muell.-Arg.
  California croton
Croton californicus var. californicus Muell.-Arg.
  California croton
Croton californicus var. mohavensis Ferguson
  Mojave croton
Croton californicus var. tenuis (S. Wats.) Ferguson
  California croton
Croton setigerus Hook.
  croton
Croton wigginsii L.C. Wheeler
  Wiggins' croton
Ditaxis 
  = Argythamnia 
Eremocarpus setigerus (Hook.) Benth.
  = Croton setigerus
Euphorbia albomarginata Torr. & Gray
  = Chamaesyce albomarginata
Euphorbia chamaesyce auct. non L.
  = Chamaesyce prostrata
Euphorbia crenulata Engelm.
  Chinese caps
Euphorbia cyparissias L.
  cypress spurge
Euphorbia dentata Michx.
  toothed spurge
Euphorbia eriantha Benth.
  beetle spurge
Euphorbia esula L.
  wolf's milk
Euphorbia exigua L.
  dwarf spurge
Euphorbia exstipulata Engelm.
  squareseed spurge
Euphorbia exstipulata var. exstipulata Engelm.
  squareseed spurge
Euphorbia fendleri Torr. & Gray
  = Chamaesyce fendleri
Euphorbia glyptosperma Engelm.
  = Chamaesyce glyptosperma
Euphorbia helioscopia L.
  madwoman's milk
Euphorbia incisa Engelm.
  Mojave spurge
Euphorbia lathyris L.
  moleplant
Euphorbia maculata L.
  = Chamaesyce maculata
Euphorbia marginata Pursh
  snow on the mountain
Euphorbia misera Benth.
  cliff spurge
Euphorbia oblongata Griseb.
  eggleaf spurge
Euphorbia ocellata Dur. & Hilg.
  = Chamaesyce ocellata ssp. ocellata
Euphorbia palmeri Engelm.
  woodland spurge
Euphorbia parishii Greene
  = Chamaesyce parishii
Euphorbia parryi Engelm.
  = Chamaesyce parryi
Euphorbia pediculifera Engelm.
  = Chamaesyce pediculifera
Euphorbia peplus L.
  petty spurge
Euphorbia prostrata Ait.
  = Chamaesyce prostrata
Euphorbia serpens Kunth
  = Chamaesyce serpens
Euphorbia serpyllifolia Pers.
  = Chamaesyce serpyllifolia ssp. serpyllifolia
Euphorbia spathulata Lam.
  warty spurge
Mercurialis annua L.
  annual mercury
Ricinus communis L.
  castorbean
Stillingia linearifolia S. Wats.
  queensroot
Stillingia paucidentata S. Wats.
  Mojave toothleaf
Stillingia spinulosa Torr.
  annual toothleaf
Tetracoccus dioicus Parry
  red hollybush
Tetracoccus fasciculatus (S. Wats.) Croizat
  purplebush
Tetracoccus hallii Brandeg.
Tetracoccus ilicifolius Coville & Gilman
  hollybush
Tragia nepetifolia var. leptophylla (Torr.) Shinners
  = Tragia ramosa
Tragia nepetifolia var. ramosa (Torr.) Muell.-Arg.
  = Tragia ramosa
Tragia ramosa Torr.
  branched noseburn

FAGACEAE
Castanea dentata (Marsh.) Borkh.
  American chestnut
Castanopsis .
  = Chrysolepis 
Chrysolepis chrysophylla (Dougl. ex Hook.) Hjelmqvist
Chrysolepis chrysophylla var. chrysophylla (Dougl. ex Hook.) Hjelmqvist
Chrysolepis sempervirens (Kellogg) Hjelmqvist
Lithocarpus densiflorus (Hook. & Arn.) Rehd.
  tanoak
Lithocarpus densiflorus var. densiflorus (Hook. & Arn.) Rehd.
  tanoak
Lithocarpus densiflorus var. echinoides (R. Br.) Abrams
  tanoak
Quercus X alvordiana Eastw. (pro sp.)
  Alvord's oak
Quercus X eplingii C.H. Muller
  Epling's oak
Quercus X ganderi C.B. Wolf
  Gander oak
Quercus X grandidentata Ewan (pro sp.)
  largeleaf oak
Quercus X howellii Tucker
  Howell's oak
Quercus X jolonensis Sarg.
  Jolon's oak
Quercus X kinselae (C.H. Muller) Nixon & C.H. Muller
Quercus X macdonaldii Greene
  MacDonald's oak
Quercus X moreha Kellogg (pro sp.)
  oracle oak
Quercus X munzii Tucker
  Munz's oak
Quercus X subconvexa Tucker
  oak
Quercus X townei Palmer
  Towne's oak
Quercus agrifolia Nee
  California live oak
Quercus agrifolia var. agrifolia Nee
  California live oak
Quercus agrifolia var. frutescens Engelm.
  coastal live oak
Quercus agrifolia var. oxyadenia (Torr.) J.T. Howell
  coastal live oak
Quercus berberidifolia Liebm.
  scrub oak
Quercus chrysolepis Liebm.
  canyon live oak
Quercus chrysolepis var. chrysolepis Liebm.
  canyon live oak
Quercus chrysolepis var. nana (Jepson) Jepson
  canyon live oak
Quercus cornelius-mulleri Nixon & Steele
  scrub oak
Quercus douglasii Hook. & Arn.
  blue oak
Quercus dumosa Nutt.
  California scrub oak
Quercus dumosa var. dumosa Nutt.
  California scrub oak
Quercus dumosa var. elegantula Jepson
  California scrub oak
Quercus dunnii Kellogg
  Palmer oak
Quercus durata Jepson
  leather oak
Quercus engelmannii Greene
  Engelmann's oak
Quercus garryana Dougl. ex Hook.
  Oregon white oak
Quercus garryana var. breweri (Engelm.) Jepson
  Brewer's oak
Quercus garryana var. garryana Dougl. ex Hook.
  Oregon white oak
Quercus john-tuckeri Nixon & C.H. Muller
  Tucker's oak
Quercus kelloggii Newberry
  California black oak
Quercus lobata Nee
  California white oak
Quercus parvula Greene
  Santa Cruz Island oak
Quercus sadleriana R. Br. Campst.
  deer oak
Quercus tomentella Engelm.
  island live oak
Quercus turbinella Greene
  shrub live oak
Quercus turbinella var. turbinella Greene
  shrub live oak
Quercus vacciniifolia Kellogg
  huckleberry oak
Quercus wislizeni A. DC.
  interior live oak
Quercus wislizeni var. frutescens Engelm.
  interior live oak
Quercus wislizeni var. wislizeni A. DC.
  interior live oak

FOUQUIERIACEAE
Fouquieria splendens Engelm.
  ocotillo

FRANKENIACEAE
Frankenia grandifolia Cham. & Schlecht.
  = Frankenia salina
Frankenia palmeri S. Wats.
  Palmer's seaheath
Frankenia salina (Molina) I.M. Johnston
  alkali seaheath

FUMARIACEAE
Corydalis aurea Willd.
  scrambledeggs
Corydalis caseana Gray
  Sierran fumewort
Corydalis caseana ssp. caseana Gray
  Sierran fumewort
Dicentra chrysantha (Hook. & Arn.) Walp.
  golden eardrops
Dicentra formosa (Haw.) Walp.
  Pacific bleedinghearts
Dicentra formosa ssp. formosa (Haw.) Walp.
  Pacific bleedinghearts
Dicentra formosa ssp. oregona (Eastw.) Munz
  Oregon bleedinghearts
Dicentra nevadensis Eastw.
  Sierran bleedinghearts
Dicentra ochroleuca Engelm.
  yellow bleedinghearts
Dicentra pauciflora S. Wats.
  shorthorn steershead
Dicentra uniflora Kellogg
  longhorn steershead
Fumaria officinalis L.
  drug fumitory
Fumaria parviflora Lam.
  fineleaf fumitory

GARRYACEAE
Garrya buxifolia Gray
  dwarf silktassel
Garrya congdonii Eastw.
Garrya elliptica Dougl. ex Lindl.
  wavyleaf silktassel
Garrya flavescens S. Wats.
  ashy silktassel
Garrya flavescens ssp. flavescens S. Wats.
  ashy silktassel
Garrya fremontii Torr.
  bearbrush
Garrya veatchii Kellogg
  canyon silktassel

GENTIANACEAE
Amarella 
  = Gentianella amarella 
Centaurium calycosum (Buckl.) Fern.
  Arizona centaury
Centaurium davyi (Jepson) Abrams
  Davy's centaury
Centaurium erythraea Rafn
  European centaury
Centaurium exaltatum (Griseb.) W. Wight ex Piper
  desert centaury
Centaurium muehlenbergii (Griseb.) W. Wight ex Piper
  Muhlenberg's centaury
Centaurium namophilum Reveal, Broome & Beatley
  springloving centaury
Centaurium trichanthum (Griseb.) B.L. Robins.
  alkali centaury
Centaurium venustum (Gray) B.L. Robins.
  charming centaury
Centaurium venustum ssp. abramsii Munz
  = Centaurium venustum
Centaurium venustum ssp. venustum (Gray) B.L. Robins.
  charming centaury
Chondrophylla aquatica auct. non (L.) W.A. Weber
  = Gentiana fremontii
Chondrophylla fremontii (Torr.) A. Nels.
  = Gentiana fremontii
Cicendia Adans.
  cicendia
Cicendia exaltata Griseb.
  = Centaurium exaltatum
Ciminalis fremontii (Torr.) W.A. Weber
  = Gentiana fremontii
Ciminalis prostrata (Haenke) A.& D. Love
  = Gentiana prostrata
Cicendia quadrangularis (Lam.) Griseb.
  Oregon timwort
Comastoma tenella (Rottb.) Toyokuni
  = Gentianella tenella ssp. tenella
Dasystephana affinis (Griseb.) Rydb.
  = Gentiana affinis
Dasystephana interrupta (Greene) Rydb.
  = Gentiana affinis
Erythraea centaurium of authors
  = Centaurium erythraea
Eustoma barkleyi Standl. ex Shinners
  = Eustoma exaltatum
Eustoma exaltatum (L.) Salisb. ex G. Don
  catchfly prairiegentian
Eustoma Salisb. ex G. Don
  prairiegentian
Exacum chilense Bertero
  = Cicendia quadrangularis
Exacum inflatum Hook. & Arn.
  = Cicendia quadrangularis
Frasera albicaulis Dougl. ex Griseb.
  whitestem elkweed
Frasera albomarginata S. Wats.
  desert elkweed
Frasera albicaulis var. albicaulis Dougl. ex Griseb.
  whitestem elkweed
Frasera albomarginata var. albomarginata S. Wats.
  desert elkweed
Frasera albomarginata var. induta (Tidestrom) Card
  desert elkweed
Frasera albicaulis var. modocensis (St. John) N. Holmgren
  Modoc elkweed
Frasera albicaulis var. nitida (Benth.) C.L. Hitchc.
  whitestem elkweed
Frasera fastigiata (Pursh) Heller
  clustered elkweed
Frasera neglecta Hall
  pinegreen elkweed
Frasera parryi Torr.
  Coahuila elkweed
Frasera puberulenta A. Davids.
  Inyo elkweed
Frasera speciosa Dougl. ex Griseb.
  showy frasera
Frasera tubulosa Coville
  Kern elkweed
Gentiana acuta Michx.
  = Gentianella amarella ssp. acuta
Gentiana affinis Griseb.
  pleated gentian
Gentiana amarella L. auct. p.p.
  = Gentianella amarella ssp. acuta
Gentiana calycosa Griseb.
  Rainier pleated gentian
Gentiana fremontii Torr.
  moss gentian
Gentiana newberryi Gray
  alpine gentian
Gentiana newberryi var. newberryi Gray
  Newberry's alpine gentian
Gentiana newberryi var. tiogana (Heller) J. Pringle
  Tioga gentian
Gentiana plurisetosa C.T. Mason
  bristly gentian
Gentiana prostrata Haenke
  pygmy gentian
Gentiana rusbyi Greene
  = Gentiana affinis
Gentiana sceptrum Griseb.
  king's scepter gentian
Gentiana setigera Gray
  Mendocino gentian
Gentiana simplex Gray
  = Gentianopsis simplex
Gentianella amarella (L.) Boerner
  autumn dwarfgentian
Gentianella amarella ssp. acuta (Michx.) J. Gillett
  autumn dwarfgentian
Gentianella tenella (Rottb.) Boerner
  Dane's dwarfgentian
Gentianella tenella ssp. tenella (Rottb.) Boerner
  Dane's dwarfgentian
Gentianopsis holopetala (Gray) Iltis
  Sierran fringedgentian
Gentianopsis simplex (Gray) Iltis
  oneflower fringedgentian
Swertia 
  = Frasera 

GERANIACEAE
Erodium botrys (Cav.) Bertol.
  longbeak stork's bill
Erodium brachycarpum (Godr.) Thellung
  shortfruit stork's bill
Erodium cicutarium (L.) L'Her. ex Ait.
  redstem stork's bill
Erodium cicutarium ssp. jacquinianum (Fisch., C.A. Mey. & Ave-Lall.) Briq.
  redstem stork's bill
Erodium cygnorum Nees
  Australian stork's bill
Erodium macrophyllum Hook. & Arn.
  roundleaf stork's bill
Erodium macrophyllum var. californicum (Greene) Jepson
  California stork's bill
Erodium macrophyllum var. macrophyllum Hook. & Arn.
  roundleaf stork's bill
Erodium malacoides (L.) L'Her. ex Ait.
  Mediterranean stork's bill
Erodium moschatum (L.) L'Her. ex Ait.
  musky stork's bill
Erodium texanum Gray
  Texas stork's bill
Geranium bicknellii Britt.
  Bicknell's cranesbill
Geranium bicknellii var. bicknellii Britt.
  Bicknell's cranesbill
Geranium bicknellii var. longipes (S. Wats.) Fern.
  northern cranesbill
Geranium californicum G.N. & F.F. Jones
  California cranesbill
Geranium carolinianum L.
  Carolina geranium
Geranium carolinianum var. sphaerospermum (Fern.) Breitung
  Carolina geranium
Geranium dissectum L.
  cutleaf geranium
Geranium molle L.
  dovefoot geranium
Geranium oreganum T.J. Howell
  Oregon geranium
Geranium palmatum Cav.
  Canary Island geranium
Geranium potentilloides L'Her. ex DC.
  cinquefoil geranium
Geranium pusillum L.
  small geranium
Geranium pyrenaicum Burm. f.
  hedgerow geranium
Geranium retrorsum L'Her. ex DC.
  New Zealand geranium
Geranium richardsonii Fisch. & Trautv.
  Richardson's geranium
Geranium robertianum L.
  Robert geranium
Geranium solanderi Carolin
  Solander's geranium
Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey.
  sticky geranium
Geranium viscosissimum var. nervosum (Rydb.) C.L. Hitchc.
  sticky purple geranium
Geranium viscosissimum var. viscosissimum Fisch. & C.A. Mey. ex C.A. Mey.
  sticky purple geranium
Pelargonium X domesticum Bailey (pro sp.)
  domestic pelargonium
Pelargonium X hortorum Bailey (pro sp.)
  pelargonium
Pelargonium capitatum (L.) L'Her. ex Ait.
  rose scented geranium
Pelargonium graveolens L'Her. ex Ait.
  sweet scented geranium
Pelargonium grossularioides (L.) L'Her. ex Ait.
  gooseberry geranium
Pelargonium inodorum Willd.
  scentless geranium
Pelargonium inquinans (L.) L'Her. ex Ait.
  scarlet geranium
Pelargonium peltatum (L.) L'Her. ex Ait.
  ivyleaf geranium
Pelargonium quercifolium (L. f.) L'Her. ex Ait.
  pelargonium
Pelargonium vitifolium (L.) L'Her. ex Ait.
  grapeleaf geranium
Pelargonium zonale (L.) L'Her. ex Ait.
  horseshoe geranium

GROSSULARIACEAE
Escallonia rubra (Ruiz & Pavon) Pers.
  redclaws
Escallonia rubra var. macrantha (Hook. & Arn.) Reiche
  redclaws
Grossularia 
  = Ribes 
Ribes amarum McClatchie
  bitter gooseberry
Ribes amarum var. amarum McClatchie
  bitter gooseberry
Ribes aureum Pursh
  golden currant
Ribes aureum var. aureum Pursh
  golden currant
Ribes aureum var. gracillimum (Coville & Britt.) Jepson
  golden currant
Ribes binominatum Heller
  ground gooseberry
Ribes bracteosum Dougl. ex Hook.
  stink currant
Ribes californicum Hook. & Arn.
  hillside gooseberry
Ribes californicum var. californicum Hook. & Arn.
  Monterey gooseberry
Ribes californicum var. hesperium (McClatchie) Jepson
  California gooseberry
Ribes canthariforme Wiggins
  Moreno currant
Ribes cereum Dougl.
  wax currant
Ribes cereum var. cereum Dougl.
  wax currant
Ribes cereum var. pedicellare Brewer & S. Wats.
  whisky currant
Ribes cruentum Greene
  shinyleaf currant
Ribes cruentum var. cruentum Greene
  shinyleaf currant
Ribes divaricatum Dougl.
  spreading gooseberry
Ribes divaricatum var. divaricatum Dougl.
  coastal black gooseberry
Ribes divaricatum var. parishii (Heller) Jepson
  Parish's gooseberry
Ribes divaricatum var. pubiflorum Koehne
  coastal black gooseberry
Ribes hudsonianum Richards.
  northern black currant
Ribes hudsonianum var. petiolare (Dougl.) Jancz.
  western black currant
Ribes indecorum Eastw.
  whiteflower currant
Ribes inerme Rydb.
  whitestem gooseberry
Ribes inerme var. inerme Rydb.
  whitestem gooseberry
Ribes inerme var. klamathense (Coville) Jepson
  Klamath gooseberry
Ribes lacustre (Pers.) Poir.
  prickly currant
Ribes lasianthum Greene
  alpine gooseberry
Ribes laxiflorum Pursh
  trailing black currant
Ribes lobbii Gray
  gummy gooseberry
Ribes malvaceum Sm.
  chaparral currant
Ribes malvaceum var. malvaceum Sm.
  chaparral currant
Ribes malvaceum var. viridifolium Abrams
  chaparral currant
Ribes marshallii Greene
  Hupa gooseberry
Ribes menziesii Pursh
  canyon gooseberry
Ribes menziesii var. hystrix (Eastw.) Jepson
  canyon gooseberry
Ribes menziesii var. ixoderme Quick
  canyon gooseberry
Ribes menziesii var. leptosmum (Coville) Jepson
  canyon gooseberry
Ribes menziesii var. menziesii Pursh
  Menzies' gooseberry
Ribes menziesii var. senile (Coville) Jepson
  canyon gooseberry
Ribes montigenum McClatchie
  gooseberry currant
Ribes nevadense Kellogg
  Sierran currant
Ribes nevadense var. glaucescens (Eastw.) Berger
  Sierran currant
Ribes nevadense var. nevadense Kellogg
  Nevada currant
Ribes quercetorum Greene
  rock gooseberry
Ribes roezlii Regel
  Sierran gooseberry
Ribes roezlii var. amictum (Greene) Jepson
  Sierran gooseberry
Ribes roezlii var. roezlii Regel
  Roezl's gooseberry
Ribes sanguineum Pursh
  redflower currant
Ribes sanguineum var. deductum (Greene) Jepson
  blood currant
Ribes sanguineum var. glutinosum (Benth.) Loud.
  blood currant
Ribes sanguineum var. melanocarpum (Greene) Jepson
  blood currant
Ribes sanguineum var. sanguineum Pursh
  redflower currant
Ribes sericeum Eastw.
  Lucia gooseberry
Ribes speciosum Pursh
  fuchsiaflower gooseberry
Ribes thacherianum (Jepson) Munz
Ribes tularense (Coville) Fedde
  Tulare gooseberry
Ribes velutinum Greene
  desert gooseberry
Ribes velutinum var. gooddingii (M.E. Peck) C.L. Hitchc.
  Gooding's gooseberry
Ribes velutinum var. velutinum Greene
  desert gooseberry
Ribes viburnifolium Gray
  island gooseberry
Ribes victoris Greene
  Victor's gooseberry
Ribes victoris var. victoris Greene
  Victor's gooseberry
Ribes viscosissimum Pursh
  sticky currant
Ribes viscosissimum var. viscosissimum Pursh
  sticky currant

GUNNERACEAE
Gunnera tinctoria (Molina) Mirbel
  Chilean 'ape'ape

HALORAGACEAE
Gonocarpus chinensis (Lour.) Orchard
  Chinese raspwort
Haloragis erecta (Banks ex Murr.) Oken
  erect seaberry
Myriophyllum aquaticum (Vell.) Verdc.
  parrot feather watermilfoil
Myriophyllum hippuroides Nutt. ex Torr. & Gray
  western watermilfoil
Myriophyllum quitense Kunth
  Andean watermilfoil
Myriophyllum sibiricum Komarov
  shortspike watermilfoil
Myriophyllum verticillatum L.
  whorlleaf watermilfoil

HIPPOCASTANACEAE
Aesculus californica (Spach) Nutt.
  California buckeye

HIPPURIDACEAE
Hippuris vulgaris L.
  common marestail

HYDRANGEACEAE
Carpenteria californica Torr.
  tree anemone
Fendlerella utahensis (S. Wats.) Heller
  Utah fendlerbush
Fendlerella utahensis var. utahensis (S. Wats.) Heller
  Utah fendlerbush
Jamesia americana Torr. & Gray
  cliffbush
Jamesia americana var. americana Torr. & Gray
  fivepetal cliffbush
Jamesia americana var. rosea J.A. Purpus ex Schneid.
  fivepetal cliffbush
Philadelphus argenteus Rydb.
  silver mockorange
Philadelphus californicus Benth.
  California mockorange
Philadelphus confusus Piper
  Piper's mockorange
Philadelphus cordifolius Lange
  heartleaf mockorange
Philadelphus insignis Carr.
  summer mockorange
Philadelphus lewisii Pursh
  Lewis' mockorange
Philadelphus lewisii var. ellipticus Hu
  Lewis' mockorange
Philadelphus lewisii var. gordonianus (Lindl.) Jepson
  Gordon's mockorange
Philadelphus lewisii var. helleri (Rydb.) Hu
  Heller's mockorange
Philadelphus lewisii var. lewisii Pursh
  Lewis' mockorange
Philadelphus lewisii var. oblongifolius Hu
  Lewis' mockorange
Philadelphus lewisii var. platyphyllus (Rydb.) Hu
  Lewis' mockorange
Philadelphus microphyllus Gray
  littleleaf mockorange
Philadelphus microphyllus var. microphyllus Gray
  littleleaf mockorange
Philadelphus occidentalis A. Nels.
  western mockorange
Philadelphus occidentalis var. occidentalis A. Nels.
  western mockorange
Philadelphus oreganus Nutt. ex Torr. & Gray
  Oregon mockorange
Philadelphus pumilus Rydb.
  dwarf mockorange
Philadelphus pumilus var. ovatus Hu
  dwarf mockorange
Philadelphus pumilus var. pumilus Rydb.
  dwarf mockorange
Philadelphus serpyllifolius Gray
  littleleaf mockorange
Philadelphus trichothecus Hu
  Columbian mockorange
Whipplea modesta Torr.
  common whipplea

HYDROCHARITACEAE
Egeria densa Planch.
  Brazilian waterweed
Elodea canadensis Michx.
  Canadian waterweed
Elodea nuttallii (Planch.) St. John
  western waterweed
Hydrilla verticillata (L. f.) Royle
  waterthyme
Ottelia alismoides (L.) Pers.
  ducklettuce

HYDROPHYLLACEAE
Draperia systyla (Gray) Torr. ex Gray
  violet draperia
Emmenanthe penduliflora Benth.
  yellow whisperingbells
Emmenanthe penduliflora var. rosea Brand
Eriodictyon altissimum P.V. Wells
  Indian Knob yerbasanta
Eriodictyon angustifolium Nutt.
  narrowleaf yerbasanta
Eriodictyon californicum (Hook. & Arn.) Torr.
  California yerbasanta
Eriodictyon capitatum Eastw.
  Lompoc yerbasanta
Eriodictyon crassifolium Benth.
  thickleaf yerbasanta
Eriodictyon crassifolium var. crassifolium Benth.
  thickleaf yerbasanta
Eriodictyon crassifolium var. nigrescens Brand
  thickleaf yerbasanta
Eriodictyon lanatum (Brand) Abrams
  = Eriodictyon trichocalyx var. lanatum
Eriodictyon tomentosum Benth.
  woolly yerbasanta
Eriodictyon traskiae Eastw.
  Pacific yerbasanta
Eriodictyon trichocalyx Heller
  hairy yerbasanta
Eriodictyon trichocalyx var. lanatum (Brand) Jepson
Eucrypta chrysanthemifolia (Benth.) Greene
  spotted hideseed
Eucrypta chrysanthemifolia var. bipinnatifida (Torr.) Constance
  spotted hideseed
Eucrypta chrysanthemifolia var. chrysanthemifolia (Benth.) Greene
  spotted hideseed
Eucrypta micrantha (Torr.) Heller
  dainty desert hideseed
Hesperochiron californicus (Benth.) S. Wats.
  California hesperochiron
Hesperochiron pumilus (Dougl. ex Griseb.) Porter
  dwarf hesperochiron
Hydrophyllum capitatum Dougl. ex Benth.
  ballhead waterleaf
Hydrophyllum capitatum var. alpinum S. Wats.
  alpine waterleaf
Hydrophyllum fendleri (Gray) Heller
  Fendler's waterleaf
Hydrophyllum fendleri var. albifrons (Heller) J.F. Macbr.
  white waterleaf
Hydrophyllum occidentale (S. Wats.) Gray
  western waterleaf
Hydrophyllum tenuipes Heller
  Pacific waterleaf
Nama aretioides (Hook. & Arn.) Brand
  ground nama
Nama californicum (Gray) Bacon
  California fiddleleaf
Nama demissum Gray
  leafy nama
Nama demissum var. covillei Brand
  Coville's fiddleleaf
Nama demissum var. demissum Gray
  purplemat
Nama densum J.G. Lemmon
  leafy nama
Nama densum var. densum J.G. Lemmon
  leafy fiddleleaf
Nama densum var. parviflorum (Greenm.) C.L. Hitchc.
  leafy fiddleleaf
Nama depressum J.G. & S.A. Lemmon ex Gray
  depressed fiddleleaf
Nama hispidum Gray
  bristly nama
Nama lobbii Gray
  Lobb's fiddleleaf
Nama pusillum J.G. & S.A. Lemmon ex Gray
  eggleaf fiddleleaf
Nama rothrockii Gray
  Rothrock's fiddleleaf
Nama stenocarpum Gray
  mud fiddleleaf
Nemophila breviflora Gray
  basin nemophila
Nemophila heterophylla Fisch. & C.A. Mey.
  small baby blue eyes
Nemophila maculata Benth. ex Lindl.
  fivespot
Nemophila menziesii Hook. & Arn.
  Menzies' baby blue eyes
Nemophila menziesii var. atomaria (Fisch. & C.A. Mey.) Chandler
  Menzies' baby blue eyes
Nemophila menziesii var. integrifolia Parish
  Menzies' baby blue eyes
Nemophila menziesii var. menziesii Hook. & Arn.
  Menzies' baby blue eyes
Nemophila parviflora Dougl. ex Benth.
  smallflower nemophila
Nemophila parviflora var. austiniae (Eastw.) Brand
  groovelover
Nemophila parviflora var. parviflora Dougl. ex Benth.
  groovelover
Nemophila parviflora var. quercifolia (Eastw.) Chandler
  groovelover
Nemophila pedunculata Dougl. ex Benth.
  littlefoot nemophila
Nemophila pulchella Eastw.
  Eastwood's baby blue eyes
Nemophila pulchella var. fremontii (Elmer) Constance
  Fremont's baby blue eyes
Nemophila pulchella var. gracilis (Eastw.) Constance
  Eastwood's baby blue eyes
Nemophila pulchella var. pulchella Eastw.
  Eastwood's baby blue eyes
Nemophila spatulata Coville
  Sierran baby blue eyes
Phacelia adenophora J.T. Howell
  glandular yellow scorpionweed
Phacelia affinis Gray
  limestone scorpionweed
Phacelia amabilis Constance
  Saline Valley scorpionweed
Phacelia ambigua var. ambigua M.E. Jones
  purplestem scorpionweed
Phacelia anelsonii J.F. Macbr.
  Aven Nelson's scorpionweed
Phacelia argentea A. Nels. & J.F. Macbr.
  sanddune scorpionweed
Phacelia austromontana J.T. Howell
  Southern Sierran scorpionweed
Phacelia barnebyana J.T. Howell
  Barneby's scorpionweed
Phacelia bicolor Torr. ex S. Wats.
  twocolor phacelia
Phacelia bolanderi Gray
  Bolander's scorpionweed
Phacelia brachyloba (Benth.) Gray
  shortlobe scorpionweed
Phacelia breweri Gray
  Brewer's scorpionweed
Phacelia californica Cham.
  California scorpionweed
Phacelia calthifolia Brand
  calthaleaf scorpionweed
Phacelia campanularia Gray
  desertbells
Phacelia campanularia ssp. campanularia Gray
  desertbells
Phacelia campanularia ssp. vasiformis Gillett
  desertbells
Phacelia cicutaria Greene
  caterpillar scorpionweed
Phacelia cicutaria var. cicutaria Greene
  caterpillar scorpionweed
Phacelia cicutaria var. hispida (Gray) J.T. Howell
  caterpillar scorpionweed
Phacelia cicutaria var. hubbyi (J.F. Macbr.) J.T. Howell
  caterpillar scorpionweed
Phacelia ciliata Benth.
  Great Valley scorpionweed
Phacelia ciliata var. ciliata Benth.
  Great Valley scorpionweed
Phacelia ciliata var. opaca J.T. Howell
  Great Valley scorpionweed
Phacelia coerulea Greene
  skyblue scorpionweed
Phacelia congdonii Greene
  Congdon's scorpionweed
Phacelia cookei Constance & Heckard
  Cooke's scorpionweed
Phacelia corymbosa Jepson
  serpentine scorpionweed
Phacelia crenulata Torr. ex S. Wats.
  cleftleaf wildheliotrope
Phacelia crenulata var. crenulata Torr. ex S. Wats.
  cleftleaf wildheliotrope
Phacelia crenulata var. minutiflora (J. Voss) Jepson
Phacelia cryptantha Greene
  hiddenflower scorpionweed
Phacelia curvipes Torr. ex S. Wats.
  Washoe scorpionweed
Phacelia dalesiana J.T. Howell
  Scott Mountain scorpionweed
Phacelia davidsonii Gray
  Davidson's scorpionweed
Phacelia distans Benth.
  distant phacelia
Phacelia divaricata (Benth.) Gray
  divaricate scorpionweed
Phacelia douglasii (Benth.) Torr.
  Douglas' scorpionweed
Phacelia douglasii var. douglasii (Benth.) Torr.
  Douglas' scorpionweed
Phacelia douglasii var. petrophila Jepson
  rockloving scorpionweed
Phacelia egena (Greene ex Brand) Greene ex J.T. Howell
  Kaweah River scorpionweed
Phacelia eisenii Brandeg.
  Eisen's scorpionweed
Phacelia exilis (Gray) G.L. Lee
  San Bernardino scorpionweed
Phacelia floribunda Greene
  southern island scorpionweed
Phacelia fremontii Torr.
  Fremont's phacelia
Phacelia geraniifolia Brand
  geraniumleaf scorpionweed
Phacelia glandulifera Piper
Phacelia grandiflora (Benth.) Gray
  largeflower scorpionweed
Phacelia greenei J.T. Howell
  Scott Valley scorpionweed
Phacelia grisea Gray
  Santa Lucia scorpionweed
Phacelia gymnoclada Torr. ex S. Wats.
  nakedstem scorpionweed
Phacelia hastata Dougl. ex Lehm.
  silverleaf phacelia
Phacelia hastata var. compacta (Brand) Cronq.
  compact phacelia
Phacelia hastata var. dasyphylla (Greene ex J.F. Macbr.) Kartesz & Gandhi
  spearshaped phacelia
Phacelia hastata var. hastata Dougl. ex Lehm.
  silverleaf phacelia
Phacelia heterophylla Pursh
  varileaf phacelia
Phacelia heterophylla ssp. virgata (Greene) Heckard
  varileaf phacelia
Phacelia humilis Torr. & Gray
  low scorpionweed
Phacelia humilis var. dudleyi J.T. Howell
  Dudley's phacelia
Phacelia humilis var. humilis Torr. & Gray
  low scorpionweed
Phacelia hydrophylloides Torr. ex Gray
  waterleaf phacelia
Phacelia imbricata Greene
  imbricate scorpionweed
Phacelia imbricata ssp. imbricata Greene
  imbricate scorpionweed
Phacelia imbricata ssp. patula (Brand) Heckard
  imbricate scorpionweed
Phacelia insularis Munz
  Santa Rosa Island scorpionweed
Phacelia insularis var. continentis J.T. Howell
  Santa Rosa Island scorpionweed
Phacelia insularis var. insularis Munz
  Santa Rosa Island scorpionweed
Phacelia inundata J.T. Howell
  playa yellow scorpionweed
Phacelia inyoensis (J.F. Macbr.) J.T. Howell
  Inyo scorpionweed
Phacelia ivesiana Torr.
  Ives' phacelia
Phacelia ivesiana var. ivesiana Torr.
  Ives' phacelia
Phacelia ivesiana var. pediculoides J.T. Howell
Phacelia lemmonii Gray
  Lemmon's scorpionweed
Phacelia leonis J.T. Howell
  Siskiyou scorpionweed
Phacelia linearis (Pursh) Holz.
  threadleaf phacelia
Phacelia longipes Torr. ex Gray
  longstalk scorpionweed
Phacelia lyonii (Gray) Rydb.
  Lyon's scorpionweed
Phacelia malvifolia Cham.
  stinging scorpionweed
Phacelia marcescens Eastw. ex J.F. Macbr.
  persistentflower scorpionweed
Phacelia minor (Harvey) Thellung ex F. Zimmerman
  wild canterbury bells
Phacelia mohavensis Gray
  Mojave phacelia
Phacelia monoensis Halse
  Mono scorpionweed
Phacelia mustelina Coville
  weasel scorpionweed
Phacelia mutabilis Greene
  changeable scorpionweed
Phacelia nashiana Jepson
  Charlotte's scorpionweed
Phacelia neglecta M.E. Jones
  alkali scorpionweed
Phacelia nemoralis Greene
  shade scorpionweed
Phacelia nemoralis ssp. nemoralis Greene
  shade scorpionweed
Phacelia nemoralis ssp. oregonensis Heckard
  Oregon scorpionweed
Phacelia novenmillensis Munz
  Nine Mile Canyon scorpionweed
Phacelia oreopola Heckard
  San Gabriel Mountain scorpionweed
Phacelia oreopola ssp. oreopola Heckard
  San Gabriel Mountain scorpionweed
Phacelia pachyphylla Gray
  blacktack scorpionweed
Phacelia parishii Gray
  Parish's scorpionweed
Phacelia parryi Torr.
  Parry's scorpionweed
Phacelia pedicellata Gray
  pedicellate scorpionweed
Phacelia peirsoniana J.T. Howell
  handsome scorpionweed
Phacelia perityloides Coville
  Panamint scorpionweed
Phacelia phacelioides (Benth.) Brand
  Mt. Diablo scorpionweed
Phacelia platyloba Gray
  broadlobe scorpionweed
Phacelia pringlei Gray
  Pringle's scorpionweed
Phacelia procera Gray
  mountain phacelia
Phacelia pulchella Gray
  beautiful scorpionweed
Phacelia pulchella var. gooddingii (Brand) J.T. Howell
  Goodding's phacelia
Phacelia purpusii Brandeg.
  Purpus' scorpionweed
Phacelia quickii J.T. Howell
  Quick's scorpionweed
Phacelia racemosa (Kellogg) Brandeg.
  racemose scorpionweed
Phacelia ramosissima Dougl. ex Lehm.
  branching phacelia
Phacelia ramosissima var. eremophila (Greene) J.F. Macbr.
  brancing phacelia
Phacelia ramosissima var. latifolia (Torr.) Cronq.
  branching phacelia
Phacelia ramosissima var. ramosissima Dougl. ex Lehm.
  branching phacelia
Phacelia ramosissima var. subglabra M.E. Peck
  branching phacelia
Phacelia rattanii Gray
  Rattan's phacelia
Phacelia rotundifolia Torr. ex S. Wats.
  roundleaf scorpionweed
Phacelia saxicola Gray
  stonecrop scorpionweed
Phacelia scopulina (A. Nels.) J.T. Howell
  Debeque phacelia
Phacelia sericea (Graham) Gray
  silky phacelia
Phacelia sericea ssp. ciliosa (Rydb.) Gillett
  purplefringe
Phacelia sericea ssp. sericea (Graham) Gray
  purplefringe
Phacelia stebbinsii Constance & Heckard
  Stebbins' scorpionweed
Phacelia stellaris Brand
Phacelia suaveolens Greene
  sweetscented scorpionweed
Phacelia suaveolens ssp. keckii (Munz & Johnston) Thorne
  Keck's phacelia
Phacelia suaveolens ssp. suaveolens Greene
  sweetscented scorpionweed
Phacelia tanacetifolia Benth.
  lacy scorpionweed
Phacelia tetramera J.T. Howell
  fourpart scorpionweed
Phacelia thermalis Greene
  heated phacelia
Phacelia umbrosa Greene
  Colorado Desert phacelia
Phacelia vallicola Congd. ex Brand
  Mariposa scorpionweed
Phacelia vallis-mortae J. Voss
  Death Valley scorpionweed
Phacelia vallis-mortae var. heliophila (J.F. Macbr.) J. Voss
Phacelia viscida (Benth. ex Lindl.) Torr.
  tacky scorpionweed
Pholistoma auritum (Lindl.) Lilja
  blue fiestaflower
Pholistoma auritum var. arizonicum (M.E. Jones) Constance
  Arizona fiestaflower
Pholistoma auritum var. auritum (Lindl.) Lilja
  blue fiestaflower
Pholistoma membranaceum (Benth.) Constance
  white fiestaflower
Pholistoma racemosum (Nutt. ex Gray) Constance
  racemed fiestaflower
Romanzoffia californica Greene
  California mistmaiden
Romanzoffia sitchensis Bong.
  Sitka mistmaiden
Romanzoffia tracyi Jepson
  Tracy's mistmaiden
Tricardia watsonii Torr. ex S. Wats.
  threehearts
Turricula parryi (Gray) J.F. Macbr.
  common turricula
Wigandia urens (Ruiz & Pavon) Kunth
  Caracus wigandia
Wigandia urens var. caracasana (Kunth) D. Gibson
  Caracus wigandia

IRIDACEAE
Chasmanthe floribunda (Salisb.) N.E. Br.
  chasmanthe
Crocosmia X crocosmiiflora (V. Lemoine) N.E. Br.
  crocosmia
Freesia corymbosa (Burm. f.) N.E. Br.
  common freesia
Gladiolus italicus P. Mill.
  Italian gladiolus
Iris bracteata S. Wats.
  Siskiyou iris
Iris chrysophylla T.J. Howell
  yellowleaf iris
Iris douglasiana Herbert
  Douglas iris
Iris fernaldii R.C. Foster
  Fernald's iris
Iris germanica L.
  German iris
Iris hartwegii Baker
  rainbow iris
Iris hartwegii ssp. australis (Parish) Lenz
  rainbow iris
Iris hartwegii ssp. columbiana Lenz
  rainbow iris
Iris hartwegii ssp. hartwegii Baker
  Hartweg's iris
Iris hartwegii ssp. pinetorum (Eastw.) Lenz
  rainbow iris
Iris innominata Henderson
  Del Norte County iris
Iris macrosiphon Torr.
  bowltube iris
Iris missouriensis Nutt.
  Rocky Mountain iris
Iris munzii R.C. Foster
  Munz's iris
Iris orientalis P. Mill.
  yellowband iris
Iris pseudacorus L.
  paleyellow iris
Iris purdyi Eastw.
  Purdy's iris
Iris sibirica L.
  Siberian iris
Iris spuria L.
  seashore iris
Iris spuria ssp. ochroleuca (L.) Dykes
  seashore iris
Iris tenax Dougl. ex Lindl.
  toughleaf iris
Iris tenax ssp. klamathensis Lenz
  Klamath iris
Iris tenuissima Dykes
  longtube iris
Iris tenuissima ssp. purdyiformis (R.C. Foster) Lenz
  longtube iris
Iris tenuissima ssp. tenuissima Dykes
  longtube iris
Iris thompsonii R.C. Foster
  Thompson's iris
Ixia maculata L.
  African cornlily
Libertia formosa Graham
  snowy mermaid
Olsynium douglasii (A. Dietr.) Bickn.
  Douglas' olsynium
Olsynium douglasii var. douglasii (A. Dietr.) Bickn.
  Douglas' olsynium
Olsynium douglasii var. inflatum (Suksdorf) Cholewa & D. Henderson
  inflated olsynium
Romulea rosea (L.) Ecklon
  rosy sandcrocus
Romulea rosea var. australis (Ewart) de Vos
  rosy sandcrocus
Sisyrinchium angustifolium P. Mill.
  narrowleaf blueeyed grass
Sisyrinchium bellum S. Wats.
  western blueeyed grass
Sisyrinchium californicum (Ker-Gawl. ex Sims) Ait.
  golden blueeyed grass
Sisyrinchium elmeri Greene
  Elmer's blueeyed grass
Sisyrinchium funereum Bickn.
  Funeral Mountain blueeyed grass
Sisyrinchium halophilum Greene
  Nevada blueeyed grass
Sisyrinchium hitchcockii D. Henderson
  Hitchcock's blueeyed grass
Sisyrinchium idahoense Bickn.
  Idaho blueeyed grass
Sisyrinchium idahoense var. idahoense Bickn.
  Idaho blueeyed grass
Sisyrinchium idahoense var. occidentale (Bickn.) D. Henderson
  Idaho blueeyed grass
Sisyrinchium minus Engelm. & Gray
  dwarf blueeyed grass
Sparaxis tricolor (Schneev.) Ker-Gawl.
  wandflower
Watsonia meriana (L.) P. Mill.
  bulbil buglelily

ISOETACEAE
Isoetes X heterospora A.A. Eat. (pro sp.)
  quillwort
Isoetes bolanderi Engelm.
  Bolander's quillwort
Isoetes bolanderi var. bolanderi Engelm.
  Bolander's quillwort
Isoetes bolanderi var. pygmaea (Engelm.) Clute
  pygmy quillwort
Isoetes howellii Engelm.
  Howell's quillwort
Isoetes lacustris L.
  lake quillwort
Isoetes nuttallii A. Braun ex Engelm.
  Nuttall's quillwort
Isoetes nuttallii var. nuttallii A. Braun ex Engelm.
  Nuttall's quillwort
Isoetes occidentalis Henderson
  western quillwort
Isoetes orcuttii A.A. Eat.
Isoetes tenella LÇman

JUGLANDACEAE
Juglans californica S. Wats.
  California walnut
Juglans californica var. hindsii Jepson
Juglans hindsii (Jepson) Jepson ex R.E. Sm.
  = Juglans californica var. hindsii

KRAMERIACEAE
Krameria erecta Willd. ex J.A. Schultes
  littleleaf ratany
Krameria grayi Rose & Painter
  white ratany
Krameria parvifolia Benth.
  = Krameria erecta

LABIATAE
Acanthomintha duttonii (Abrams) Jokerst
  Dutton's acanthomintha
Acanthomintha ilicifolia (Gray) Gray
  San Diego thornmint
Acanthomintha lanceolata Curran
  Santa Clara thornmint
Acanthomintha obovata Jepson
  San Benito thornmint
Acanthomintha obovata ssp. obovata Jepson
  San Benito thornmint
Agastache parvifolia Eastw.
  smallleaf giant hyssop
Agastache urticifolia (Benth.) Kuntze
  nettleleaf giant hyssop
Agastache urticifolia var. glaucifolia (Heller) Cronq.
  nettleleaf giant hyssop
Agastache urticifolia var. urticifolia (Benth.) Kuntze
  nettleleaf giant hyssop
Calamintha chandleri Brandeg.
  San Miguel calamint
Cedronella canariensis (L.) Willd. ex Webb & Berth.
  herb of Gilead
Glechoma hederacea L.
  groundivy
Hedeoma drummondii Benth.
  Drummond's falsepennyroyal
Hedeoma nana (Torr.) Briq.
  falsepennyroyal
Hedeoma nana ssp. californica W.S. Stewart
  California falsepennyroyal
Hyptis emoryi Torr.
  desert lavender
Lamium amplexicaule L.
  henbit deadnettle
Lamium purpureum L.
  purple deadnettle
Lepechinia calycina (Benth.) Epling ex Munz
  woodbalm
Lepechinia cardiophylla Epling
  Santa Ana pitchersage
Lepechinia fragrans (Greene) Epling
  island pitchersage
Lepechinia ganderi Epling
  San Diego pitchersage
Leonotis leonurus (L.) Ait. f.
  lion's ear
Lycopus americanus Muhl. ex W. Bart.
  American waterhorehound
Lycopus asper Greene
  rough bugleweed
Lycopus uniflorus Michx.
  northern bugleweed
Marrubium vulgare L.
  horehound
Mentha X piperita L. (pro sp.)
  peppermint
Mentha X rotundifolia (L.) Huds. (pro sp.)
  mint
Mentha aquatica L.
  water mint
Mentha arvensis L.
  wild mint
Mentha canadensis L.
  Canadian mint
Mentha citrata Ehrh.
  = Mentha aquatica
Mentha pulegium L.
  pennyroyal
Mentha spicata L.
  spearmint
Mentha viridis L.
  = Mentha spicata
Melissa officinalis L.
  common balm
Micromeria chamissonis (Benth.) Greene
  = Satureja douglasii
Moluccella laevis L.
  shellflower
Monarda pectinata Nutt.
  pony beebalm
Monardella antonina Hardham
  San Antonio mountainbalm
Monardella antonina ssp. benitensis (Hardam) Jokerst
  San Antonio mountainbalm
Monardella australis Abrams
Monardella beneolens Shevock, Ertter & Jokerst
  Owens Peak mountainbalm
Monardella breweri Gray
  Brewer's mountainbalm
Monardella candicans Benth.
  Sierran mountainbalm
Monardella cinerea Abrams
  Gray mountainbalm
Monardella crispa Elmer
  crisped mountainbalm
Monardella douglasii Benth.
  Douglas' mountainbalm
Monardella douglasii var. douglasii Benth.
  douglas' mountainbalm
Monardella douglasii ssp. venosa (Torr.) Jokerst
  Douglas' mountainbalm
Monardella exilis (Gray) Greene
  Mojave mountainbalm
Monardella exilis var. frutescens (Hoover) Jokerst
  Mojave mountainbalm
Monardella glauca Greene
Monardella hypoleuca Gray
  thickleaf mountainbalm
Monardella hypoleuca ssp. hypoleuca Gray
  thickleaf mountainbalm
Monardella hypoleuca ssp. lanata (Abrams) Munz
  thickleaf mountainbalm
Monardella lanceolata Gray
  mustang mountainbalm
Monardella lanceolata var. glandulifera I.M. Johnston
  mustang mountainbalm
Monardella lanceolata var. lanceolata Gray
  mustang mountainbalm
Monardella lanceolata var. microcephala Gray
  mustang mountainbalm
Monardella leucocephala Gray
  Merced mountainbalm
Monardella linoides Gray
  narrowleaf monardella
Monardella linoides ssp. linoides Gray
  flaxleaf mountainbalm
Monardella linoides ssp. oblonga (Greene) Abrams
  flaxleaf mountainbalm
Monardella linoides ssp. stricta (Parish) Epling
  flaxleaf mountainbalm
Monardella linoides ssp. viminea (Greene) Abrams
  willowy San Diego mint
Monardella macrantha Gray
  red mountainbalm
Monardella macrantha ssp. hallii (Abrams) Abrams
  Hall's mountainbalm
Monardella macrantha ssp. macrantha Gray
  red mountainbalm
Monardella nana Gray
  yellow mountainbalm
Monardella nana ssp. arida (Hall) Abrams
  yellow mountainbalm
Monardella nana ssp. leptosiphon (Torr.) Abrams
  yellow mountainbalm
Monardella nana ssp. nana Gray
  yellow mountainbalm
Monardella nana ssp. tenuiflora (S. Wats. ex Gray) Abrams
  yellow mountainbalm
Monardella odoratissima Benth.
  Pacific monardella
Monardella odoratissima ssp. odoratissima Benth.
  alpine mountainbalm
Monardella odoratissima ssp. pallida (Heller) Epling
  alpine mountainbalm
Monardella palmeri Gray
  Palmer's mountainbalm
Monardella pringlei Gray
  Pringle's mountainbalm
Monardella robisonii Epling ex Munz
  rock mountainbalm
Monardella sheltonii (Torr.) T.J. Howell
Monardella stebbinsii Hardham & Bartel
  Feather River mountainbalm
Monardella undulata Benth.
  curlyleaf mountainbalm
Monardella undulata var. undulata Benth.
  curlyleaf mountainbalm
Monardella villosa Benth.
  coyote mint
Monardella viridis Jepson
  green mountainbalm
Monardella villosa ssp. villosa var. franciscana (Elmer) Epling
  coyote mountainbalm
Monardella villosa ssp. villosa var. obispoensis Hoover
  coyote mountainbalm
Monardella viridis ssp. saxicola (I.M. Johnston) Ewan
  green mountainbalm
Monardella villosa ssp. villosa Benth.
  coyote mountainbalm
Monardella viridis ssp. viridis Jepson
  green mountainbalm
Monardella villosa ssp. villosa var. villosa Benth.
  coyote mountainbalm
Nepeta cataria L.
  catnip
Origanum vulgare L.
  wild marjoram
Phlomis fruticosa L.
  shrubby Jerusalem sage
Pogogyne abramsii J.T. Howell
  San Diego pogogyne
Pogogyne clareana J.T. Howell
  Santa Lucia mint
Pogogyne douglasii Benth.
  Douglas' mesamint
Pogogyne douglasii ssp. douglasii Benth.
  Douglas' mesamint
Pogogyne douglasii ssp. minor J.T. Howell
  Douglas' mesamint
Pogogyne douglasii ssp. parviflora (Benth.) J.T. Howell
  Douglas' mesamint
Pogogyne nudiuscula Gray
  Otay mesamint
Pogogyne serpylloides (Torr.) Gray
  thymeleaf mesamint
Pogogyne ziziphoroides Benth.
  Sacramento mesamint
Poliomintha incana (Torr.) Gray
  hoary rosemarymint
Prunella vulgaris L.
  common selfheal
Prunella vulgaris ssp. lanceolata (W. Bart.) Hulten
  lance selfheal
Prunella vulgaris ssp. vulgaris L.
  common selfheal
Pycnanthemum californicum Torr.
  Sierra mint
Rosmarinus officinalis L.
  rosemary
Salazaria mexicana Torr.
  Mexican bladdersage
Salvia X palmeri Gray (pro sp.)
  Palmer's sage
Salvia aethiopis L.
  Mediterranean sage
Salvia apiana Jepson
  white sage
Salvia apiana var. apiana Jepson
  California white sage
Salvia apiana var. compacta Munz
  compact white sage
Salvia X bernardina Parish ex Greene (pro sp.)
  Bernard's sage
Salvia brandegei Munz
  Santa Rosa Island sage
Salvia carnosa Dougl. ex Greene
  = Salvia dorrii ssp. dorrii var. incana
Salvia carduacea Benth.
  thistle sage
Salvia clevelandii (Gray) Greene
  fragrant sage
Salvia columbariae Benth.
  chia
Salvia columbariae var. columbariae Benth.
  California sage
Salvia columbariae var. ziegleri Munz
  Ziegler's sage
Salvia dorrii (Kellogg) Abrams
  grayball sage
Salvia dorrii ssp. dorrii (Kellogg) Abrams
  Dorr's sage
Salvia dorrii ssp. dorrii var. dorrii (Kellogg) Abrams
  Dorr's sage
Salvia dorrii ssp. dorrii var. incana (Benth.) Strachan
  purple sage
Salvia dorrii ssp. dorrii var. pilosa (Gray) Strachan & Reveal
  grayball sage
Salvia eremostachya Jepson
  rose sage
Salvia funerea M.E. Jones
  woolly sage
Salvia greatae Brandeg.
  lavender sage
Salvia leucophylla Greene
  purple sage
Salvia longistyla Benth.
  Mexican sage
Salvia mellifera Greene
  black sage
Salvia microphylla Benth.
  baby sage
Salvia mohavensis Greene
  Mojave sage
Salvia munzii Epling
  Munz's sage
Salvia pachyphylla Epling ex Munz
  blue sage
Salvia pratensis L.
  introduced sage
Salvia sonomensis Greene
  creeping sage
Salvia spathacea Greene
  crimson sage
Salvia vaseyi (Porter) Parish
  scallopleaf sage
Salvia verbenacea L.
  verbena sage
Satureja douglasii (Benth.) Briq.
  yerba buena
Satureja mimuloides (Benth.) Briq.
  monkeyflower savory
Scutellaria antirrhinoides Benth.
  nose skullcap
Scutellaria austiniae Eastw.
  = Scutellaria siphocamyploides
Scutellaria bolanderi Gray
  Sierran skullcap
Scutellaria bolanderi ssp. austromontana Epling
  Sierran skullcap
Scutellaria bolanderi ssp. bolanderi Gray
  Bolander's skullcap
Scutellaria californica Gray
  California skullcap
Scutellaria epilobiifolia A. Hamilton
  = Scutellaria galericulata
Scutellaria galericulata L.
  marsh skullcap
Scutellaria lateriflora L.
  blue skullcap
Scutellaria lateriflora var. lateriflora L.
  blue skullcap
Scutellaria nana Gray
  dwarf skullcap
Scutellaria siphocamyploides Vatke
  grayleaf skullcap
Scutellaria tuberosa Benth.
  Danny's skullcap
Stachys ajugoides Benth.
  bugle hedgenettle
Stachys ajugoides var. rigida Jepson & Hoover
Stachys albens Gray
  whitestem hedgenettle
Stachys arvensis (L.) L.
  staggerweed
Stachys bullata Benth.
  California hedgenettle
Stachys chamissonis Benth.
  coastal hedgenettle
Stachys palustris L.
  marsh hedgenettle
Stachys palustris ssp. pilosa (Nutt.) Epling
  marsh hedgenettle
Stachys pycnantha Benth.
  shortspike hedgenettle
Stachys rigida Nutt. ex Benth.
  = Stachys palustris ssp. pilosa
Stachys stricta Greene
  Sonoma hedgenettle
Teucrium cubense Jacq.
  small coastal germander
Teucrium cubense var. densum Jepson
  small coastal germander
Teucrium glandulosum Kellogg
  common germander
Trichostema austromontanum F.H. Lewis
  San Jacinto bluecurls
Trichostema austromontanum ssp. austromontanum F.H. Lewis
  San Jacinto bluecurls
Trichostema austromontanum ssp. compactum F.H. Lewis
  San Jacinto bluecurls
Trichostema lanatum Benth.
  woolly bluecurls, California 
Trichostema lanceolatum Benth.
  vinegarweed
Trichostema laxum Gray
  turpentine weed
Trichostema micranthum Gray
  smallflower bluecurls
Trichostema oblongum Benth.
  oblong bluecurls
Trichostema ovatum Curran
  San Joaquin bluecurls
Trichostema parishii Vasey
  Parish's bluecurls
Trichostema rubisepalum Elmer
  Hernandez's bluecurls
Trichostema simulatum Jepson
  Siskiyou bluecurls

LAURACEAE
Laurus nobilis L.
  laurel
Umbellularia californica (Hook. & Arn.) Nutt.
  California laurel
Umbellularia californica var. californica (Hook. & Arn.) Nutt.
  California laurel
Umbellularia californica var. fresnensis Eastw.
  California laurel

LEGUMINOSAE
Acacia baileyana F. Muell
  cootamundra wattle
Acacia dealbata Link
  silver wattle
Acacia decurrens Willd
  green wattle
Acacia farnesiana (L.) Willd
  sweet acacia
Acacia greggii Gray
  catclaw acacia
Acacia longifolia (Andr.) Willd
  Sydney golden wattle
Acacia mearnsii de Wildeman
  black wattle
Acacia melanoxylon R. Br. ex Ait. f
  blackwood
Acacia minuta (M.E. Jones) Beauchamp
  coastal scrub wattle
Acacia minuta ssp. minuta (M.E. Jones) Beauchamp
  coastal scrub wattle
Acacia podalyriifolia A. Cunningham ex G. Don
  pearl wattle
Acacia redolens Maslin
  acacia
Acacia retinodes Schlecht
  water wattle
Acacia saligna (Labill.) Wendl. f
  orange wattle
Acacia terminalis (Salisb.) J.F. Macbr
  cedar wattle
Acacia verticillata (L'Her.) Willd
  prickly Moses
Albizia julibrissin Durz
  silktree
Alhagi camelorum Fisch
  = Alhagi maurorum
Alhagi maurorum Medik
  camelthorn
Amorpha californica Nutt
  mock locust
Amorpha californica var. californica Nutt
  California indigobush
Amorpha californica var. napensis Jepson
  Napa indigobush
Amorpha fruticosa L
  desert indigobush
Astragalus accidens S. Wats
  Rogue River milkvetch
Astragalus accidens var. hendersonii M.E. Jones
  Henderson's milkvetch
Astragalus acutirostris S. Wats
  sharpkeel milkvetch
Astragalus agnicidus Barneby
  Humboldt County milkvetch
Astragalus agrestis Dougl. ex G. Don
  purple milkvetch
Astragalus albens Greene
  cushenbury milkvetch
Astragalus allochrous Gray
  halfmoon milkvetch
Astragalus allochrous var. playanus Isely
Astragalus andersonii Gray
  Anderson's milkvetch
Astragalus applegatei M.E. Peck
  Applegate's milkvetch
Astragalus argophyllus Nutt
  silverleaf milkvetch
Astragalus argophyllus var. argophyllus Nutt
  silverleaf milkvetch
Astragalus aridus Gray
  annual desert milkvetch
Astragalus asymmetricus Sheldon
  San Joaquin milkvetch
Astragalus atratus S. Wats
  mourning milkvetch
Astragalus atratus var. mensanus M.E. Jones
  mourning milkvetch
Astragalus austiniae Gray ex Brewer & S. Wats
  Austin's milkvetch
Astragalus bernardinus M.E. Jones
  San Bernardino milkvetch
Astragalus bicristatus Gray
  twocrested milkvetch
Astragalus bolanderi Gray
  Bolander's milkvetch
Astragalus brauntonii Parish
  Braunton's milkvetch
Astragalus breweri Gray
  Brewer's milkvetch
Astragalus californicus (Gray) Greene
  Klamath Basin milkvetch
Astragalus calycosus Torr. ex S. Wats
  matted poison milkvetch
Astragalus calycosus var. calycosus Torr. ex S. Wats
  Torrey's milk-vetch
Astragalus canadensis L
  Canadian milkvetch
Astragalus canadensis var. brevidens (Gandog.) Barneby
  shorttooth Canadian milkvetch
Astragalus casei Gray ex Brewer & S. Wats
  Case's milkvetch
Astragalus cimae M.E. Jones
  cima milkvetch
Astragalus cimae var. cimae M.E. Jones
  cima milkvetch
Astragalus cimae var. sufflatus Barneby
  cima milkvetch
Astragalus clarianus Jepson
  Napa milkvetch
Astragalus clevelandii Greene
  Cleveland's milkvetch
Astragalus coccineus Brandeg
  scarlet milkvetch
Astragalus congdonii S. Wats
  Congdon's milkvetch
Astragalus crotalariae (Benth.) Gray
  Salton milkvetch
Astragalus curtipes Gray
  Morro milkvetch
Astragalus curvicarpus (Heller) J.F. Macbr
  curvepod milkvetch
Astragalus curvicarpus var. curvicarpus (Heller) J.F. Macbr
  curvepod milkvetch
Astragalus deanei (Rydb.) Barneby
  Deane's milkvetch
Astragalus didymocarpus Hook. & Arn
  dwarf white milkvetch
Astragalus didymocarpus var. didymocarpus Hook. & Arn
  dwarf white milkvetch
Astragalus didymocarpus var. dispermus (Gray) Jepson
  dwarf white milkvetch
Astragalus didymocarpus var. milesianus (Rydb.) Jepson
  dwarf white milkvetch
Astragalus didymocarpus var. obispoensis (Rydb.) Jepson
  San Obispo milkvetch
Astragalus douglasii (Torr. & Gray) Gray
  Jacumba milkvetch
Astragalus douglasii var. douglasii (Torr. & Gray) Gray
  Jacumba milkvetch
Astragalus douglasii var. parishii (Gray) M.E. Jones
  Parish's milkvetch
Astragalus douglasii var. perstrictus (Rydb.) Munz & McBurney ex Munz
  Jacumba milkvetch
Astragalus ertterae Barneby & Shevock
  Walker Pass milkvetch
Astragalus filipes Torr. ex Gray
  threadstalk milkvetch
Astragalus funereus M.E. Jones
  Funeral Mountain milkvetch
Astragalus gambelianus Sheldon
  Gambel's dwarf milkvetch
Astragalus geyeri Gray
  Geyer's milkvetch
Astragalus geyeri var. geyeri Gray
  Geyer's milkvetch
Astragalus gibbsii Kellogg
  Gibbs' milkvetch
Astragalus gilmanii Tidestrom
  Gilman's milkvetch
Astragalus hornii Gray
  Horn's milkvetch
Astragalus insularis Kellogg
  Cedros milkvetch
Astragalus insularis var. harwoodii Munz & McBurney ex Munz
  Harwood's milkvetch
Astragalus inversus M.E. Jones
  Susanville milkvetch
Astragalus inyoensis Sheldon
  Inyo milkvetch
Astragalus iodanthus S. Wats
  Humboldt River milkvetch
Astragalus iodanthus var. diaphanoides Barneby
  snake milkvetch
Astragalus iodanthus var. iodanthus S. Wats
  Humboldt River milkvetch
Astragalus jaegerianus Munz
  Lane Mountain milkvetch
Astragalus johannis-howellii Barneby
  Long Valley milkvetch
Astragalus kentrophyta Gray
  spiny milkvetch
Astragalus kentrophyta var. danaus (Barneby) Barneby
  spiny milkvetch
Astragalus kentrophyta var. elatus S. Wats
  tall spiny milkvetch
Astragalus kentrophyta var. tegetarius (S. Wats.) Dorn
  mat milkvetch
Astragalus layneae Greene
  widow's milkvetch
Astragalus lemmonii Gray
  Lemmon's milkvetch
Astragalus lentiformis Gray ex Brewer & S. Wats
  lens pod milkvetch
Astragalus lentiginosus Dougl. ex Hook
  specklepod milkvetch
Astragalus lentiginosus var. albifolius M.E. Jones
  northern speckledpod milkvetch
Astragalus lentiginosus var. antonius Barneby
  speckledpod milkvetch
Astragalus lentiginosus var. borreganus M.E. Jones
  northern milkvetch
Astragalus lentiginosus var. chartaceus M.E. Jones
  broadleaf loco milkvetch
Astragalus lentiginosus var. coachellae Barneby ex Shreve & Wiggins
  Coachella milkvetch
Astragalus lentiginosus var. floribundus Gray
  speckledpod milkvetch
Astragalus lentiginosus var. fremontii (Gray ex Torr.) S. Wats
  Fremont's milkvetch
Astragalus lentiginosus var. idriensis M.E. Jones
  speckledpod milkvetch
Astragalus lentiginosus var. ineptus (Gray) M.E. Jones
  speckledpod milkvetch
Astragalus lentiginosus var. kernensis (Jepson) Barneby
  Kern milkvetch
Astragalus lentiginosus var. lentiginosus Dougl. ex Hook
  speckledpod milkvetch
Astragalus lentiginosus var. micans Barneby
  speckledpod milkvetch
Astragalus lentiginosus var. nigricalycis M.E. Jones
  speckledpod milkvetch
Astragalus lentiginosus var. piscinensis Barneby
  freckled milkvetch
Astragalus lentiginosus var. salinus (T.J. Howell) Barneby
  salty loco milkvetch
Astragalus lentiginosus var. semotus Jepson
  freckled milkvetch
Astragalus lentiginosus var. sesquimetralis (Rydb.) Barneby
  Mono locoweed
Astragalus lentiginosus var. sierrae M.E. Jones
  Sierra milkvetch
Astragalus lentiginosus var. variabilis Barneby
  freckled milkvetch
Astragalus leucolobus S. Wats. ex M.E. Jones
  Bear Valley milkvetch
Astragalus macrodon (Hook. & Arn.) Gray
  Salinas milkvetch
Astragalus magdalenae Greene
  satiny milkvetch
Astragalus magdalenae var. peirsonii (Munz & McBurney) Barneby
  Peirson's milkvetch
Astragalus malacus Gray
  shaggy milkvetch
Astragalus miguelensis Greene
  San Miguel milkvetch
Astragalus minthorniae (Rydb.) Jepson
  Minthorn's milkvetch
Astragalus minthorniae var. villosus Barneby
  Minthorn's milkvetch
Astragalus mohavensis S. Wats
  Mojave milkvetch
Astragalus mohavensis var. hemigyrus (Clokey) Barneby
  Mojave milkvetch
Astragalus mohavensis var. mohavensis S. Wats
  Mojave milkvetch
Astragalus monoensis Barneby
  Mono milkvetch
Astragalus nevinii Gray
  San Clemente Island milkvetch
Astragalus newberryi Gray
  Newberry's milkvetch
Astragalus newberryi var. castoreus M.E. Jones
  Newberry's milkvetch
Astragalus newberryi var. newberryi Gray
  Newberry's milkvetch
Astragalus nutans M.E. Jones
  Providence Mountain milkvetch
Astragalus nuttallianus DC
  smallflowered milkvetch
Astragalus nuttallianus var. cedrosensis M.E. Jones
  turkeypeas
Astragalus nuttallianus var. imperfectus (Rydb.) Barneby
  turkeypeas
Astragalus nuttallii (Torr. & Gray) J.T. Howell
  Nuttall's milkvetch
Astragalus nuttallii var. nuttallii (Torr. & Gray) J.T. Howell
  Nuttall's milkvetch
Astragalus nuttallii var. virgatus (Gray ex Brewer & S. Wats.) Barneby
  Nuttall's milkvetch
Astragalus obscurus S. Wats
  arcane milkvetch
Astragalus oocarpus Gray
  Descanso milkvetch
Astragalus oophorus S. Wats
  egg milkvetch
Astragalus oophorus var. lavinii Barneby
  Lavin's egg milkvetch
Astragalus oophorus var. oophorus S. Wats
  egg milkvetch
Astragalus oxyphysus Gray
  Mt. Diablo milkvetch
Astragalus pachypus Greene
  thickpod milkvetch
Astragalus pachypus var. jaegeri Munz & McBurney ex Munz
  Jaeger's milkvetch
Astragalus pachypus var. pachypus Greene
  thickpod milkvetch
Astragalus palmeri Gray
  Palmer's milkvetch
Astragalus panamintensis Sheldon
  Panamint milkvetch
Astragalus pauperculus Greene
  depauperate milkvetch
Astragalus platytropis Gray
  broadkeel milkvetch
Astragalus pomonensis M.E. Jones
  Pomona milkvetch
Astragalus preussii Gray
  Preuss' milkvetch
Astragalus preussii var. laxiflorus Gray
  Preuss' milkvetch
Astragalus preussii var. preussii Gray
  Preuss' milkvetch
Astragalus pseudiodanthus Barneby
  Tonopah milkvetch
Astragalus pulsiferae Gray
  Ames' milkvetch
Astragalus pulsiferae var. pulsiferae Gray
  Ames' milkvetch
Astragalus pulsiferae var. suksdorfii (T.J. Howell) Barneby
  Suksdorf's milkvetch
Astragalus purshii Dougl. ex Hook
  woollypod milkvetch
Astragalus purshii var. lagopinus (Rydb.) Barneby
  woollypod milkvetch
Astragalus purshii var. lectulus (S. Wats.) M.E. Jones
  woollypod milkvetch
Astragalus purshii var. purshii Dougl. ex Hook
  Pursh's milkvetch
Astragalus purshii var. tinctus M.E. Jones
  woollypod milkvetch
Astragalus pycnostachyus Gray
  marsh milkvetch
Astragalus pycnostachyus var. lanosissimus (Rydb.) Munz & McBurney ex Munz
  marsh milkvetch
Astragalus pycnostachyus var. pycnostachyus Gray
  marsh milkvetch
Astragalus rattanii Gray
  Rattan's milkvetch
Astragalus rattanii var. jepsonianus Barneby
  Jepson's milkvetch
Astragalus rattanii var. rattanii Gray
  Rattan's milkvetch
Astragalus ravenii Barneby
  Raven's milkvetch
Astragalus sabulonum Gray
  gravel milkvetch
Astragalus sepultipes (Barneby) Barneby
  Lone Pine milkvetch
Astragalus serenoi (Kuntze) Sheldon
  naked milkvetch
Astragalus serenoi var. shockleyi (M.E. Jones) Barneby
  Shockley's milkvetch
Astragalus shevockii Barneby
  Little Kern milkvetch
Astragalus subvestitus (Jepson) Barneby
  Kern County milkvetch
Astragalus tegetarioides M.E. Jones
  bastard milkvetch
Astragalus tener Gray
  alkali milkvetch
Astragalus tener var. tener Gray
  alkali milkvetch
Astragalus tener var. titi (Eastw.) Barneby
  largeflower milkvetch
Astragalus tephrodes Gray
  ashen milkvetch
Astragalus tephrodes var. brachylobus (Gray) Barneby
  ashen milkvetch
Astragalus tephrodes var. remulcus (Gray) Barneby
  ashen milkvetch
Astragalus tidestromii (Rydb.) Clokey
  Tidestrom's milkvetch
Astragalus traskiae Eastw
  Trask's milkvetch
Astragalus tricarinatus Gray
  triplerib milkvetch
Astragalus trichopodus (Nutt.) Gray
  Santa Barbara milkvetch
Astragalus trichopodus var. lonchus (M.E. Jones) Barneby
  Santa Barbara milkvetch
Astragalus trichopodus var. phoxus (M.E. Jones) Barneby
  Santa Barbara milkvetch
Astragalus trichopodus var. trichopodus (Nutt.) Gray
  Santa Barbara milkvetch
Astragalus umbraticus Sheldon
  Bald Mountain milkvetch
Astragalus webberi Gray ex Brewer & S. Wats
  Webber's milkvetch
Astragalus whitneyi Gray
  balloon pod milkvetch
Astragalus whitneyi var. confusus Barneby
  conelike milkvetch
Astragalus whitneyi var. lenophyllus (Rydb.) Barneby
  balloon pod milkvetch
Astragalus whitneyi var. siskiyouensis (Rydb.) Barneby
  Siskiyou milkvetch
Astragalus whitneyi var. whitneyi Gray
  Whitney's milkvetch
Bituminaria bituminosa (L.) Stirton
  Arabian pea
Caesalpinia jamesii (Torr. & Gray) Fisher
  James' holdback
Caesalpinia spinosa (Molina) Kuntze
  spiny holdback
Caesalpinia virgata Fisher
  wand holdback
Calliandra eriophylla Benth
  fairyduster
Calliandra eriophylla var. eriophylla Benth
  fairyduster
Cassia
  = Senna 
Cercidium 
  = Parkinsonia 
Cercis canadensis L
  eastern redbud
Cercis canadensis var. texensis (S. Wats.) M. Hopkins
  California redbud
Cercis orbiculata Greene
Chamaecystis prolifera (L. f.) Link
  escabon
Coronilla valentina L
  Mediterranean crownvetch
Cytisus X dallimorei Rolfe
  Dallimore's spanishbroom
Cytisus scoparius (L.) Link
  scotchbroom
Cytisus scoparius var. andreanus (Puiss.) Dippel
  scotchbroom
Cytisus scoparius var. scoparius (L.) Link
  scotchbroom
Dalea arborescens Torr. ex Gray
  = Psorothamnus arborescens var. arborescens
Dalea californica S. Wats
  = Psorothamnus arborescens var. simplifolius
Dalea emoryi Gray
  = Psorothamnus emoryi
Dalea fremontii Torr. ex Gray
  = Psorothamnus fremontii var. fremontii
Dalea mollis Benth
  hairy prairieclover
Dalea mollissima (Rydb.) Munz
  soft prairieclover
Dalea ornata (Dougl. ex Hook.) Eat. & J. Wright
  Blue Mountain prairieclover
Dalea polydenia Torr. ex S. Wats
  = Psorothamnus polydenius var. polydenius
Dalea schottii Torr
  = Psorothamnus schottii
Dalea searlsiae (Gray) Barneby
  Searls' prairieclover
Dalea spinosa Gray
  = Psorothamnus spinosus
Genista canariensis L
  canarybroom
Genista linifolia L
  Mediterranean broom
Genista monspessulana (L.) L. Johnson
  frenchbroom
Genista stenopetala Webb & Berth
  leafybroom
Glycyrrhiza glabra L
  cultivated licorice
Glycyrrhiza lepidota Pursh
  American licorice
Hoffmannseggia glauca (Ortega) Eifert
  Indian rushpea
Hoita macrostachya (DC.) Rydb
  large leatherroot
Hoita orbicularis (Lindl.) Rydb
  roundleaf leatherroot
Hoita strobilina (Hook. & Arn.) Rydb
  loma prieta
Lathyrus aphaca L
  yellow peavine
Lathyrus biflorus T.W. & J.P. Nelson
  twoflower peavine
Lathyrus cicera L
  red peavine
Lathyrus delnorticus C.L. Hitchc
  Del Norte peavine
Lathyrus glandulosus Broich
  redwood peavine
Lathyrus hirsutus L
  singletary peavine
Lathyrus japonicus Willd
  sea peavine
Lathyrus japonicus var. maritimus (L.) Kartesz & Gandhi
  sea peavine
Lathyrus jepsonii Greene
  delta peavine
Lathyrus jepsonii ssp. californicus (S. Wats.) C.L. Hitchc
  California peavine
Lathyrus jepsonii ssp. jepsonii Greene
  Jepson's peavine
Lathyrus lanszwertii Kellogg
  thickleaf peavine
Lathyrus lanszwertii var. aridus (Piper) Jepson
  Nevada peavine
Lathyrus lanszwertii var. brownii (Eastw.) Jepson
  Brown's peavine
Lathyrus lanszwertii var. lanszwertii Kellogg
  Lanszwert's peavine
Lathyrus lanszwertii var. tracyi (Bradshaw) Isley
  Tracy's peavine
Lathyrus latifolius L
  perennial peavine
Lathyrus littoralis (Nutt.) Endl
  silky beach peavine
Lathyrus nevadensis S. Wats
  Sierran peavine
Lathyrus nevadensis ssp. cusickii (S. Wats.) C.L. Hitchc
  Cusick's peavine
Lathyrus nevadensis ssp. lanceolatus (T.J. Howell) C.L. Hitchc
  Sierran peavine
Lathyrus nevadensis ssp. lanceolatus var. lanceolatus (T.J. Howell) C.L. Hitchc
  Sierran peavine
Lathyrus nevadensis ssp. lanceolatus var. nuttallii (S. Wats.) C.L. Hitchc
  Nuttall's peavine
Lathyrus nevadensis ssp. lanceolatus var. pilosellus (M.E. Peck) C.L. Hitchc
  Sierran peavine
Lathyrus nevadensis ssp. nevadensis S. Wats
  Nevada peavine
Lathyrus odoratus L
  sweetpea peavine
Lathyrus palustris L
  slenderstem peavine
Lathyrus polyphyllus Nutt
  leafy peavine
Lathyrus rigidus White
  stiff peavine
Lathyrus sphaericus Retz
  grass peavine
Lathyrus splendens Kellogg
  pride of California
Lathyrus sulphureus Brewer ex Gray
  snub peavine
Lathyrus sulphureus var. argillaceus Jepson
  snub peavine
Lathyrus sulphureus var. sulphureus Brewer ex Gray
  snub peavine
Lathyrus tingitanus L
  Tangier peavine
Lathyrus torreyi Gray
  Torrey's peavine
Lathyrus vestitus Nutt
  Pacific peavine
Lathyrus vestitus ssp. alefeldii (White) Broich
  Alefeld's peavine
Lathyrus vestitus ssp. bolanderi (S. Wats.) C.L. Hitchc
  Bolander's peavine
Lathyrus vestitus ssp. laetiflorus (Greene) Broich
  Pacific peavine
Lathyrus vestitus ssp. laevicarpus Broich
  Pacific peavine
Lathyrus vestitus ssp. vestitus Nutt
  Pacific peavine
Lens culinaris Medik
  lentil
Lotus aboriginus Jepson
  rosy birdsfoot trefoil
Lotus angustissimus L
  slender birdsfoot trefoil
Lotus argophyllus (Gray) Greene
  silver birdsfoot trefoil
Lotus argophyllus var. argenteus Dunkle
  silver birdsfoot trefoil
Lotus argophyllus var. argophyllus (Gray) Greene
  silver birdsfoot trefoil
Lotus argophyllus var. fremontii (Gray) Ottley
  Fremont's birsfoot trefoil
Lotus argophyllus var. niveus (Greene) Ottley
  Santa Cruz Island silverhosackia
Lotus argyraeus (Greene) Greene
  canyon birdsfoot trefoil
Lotus argyraeus var. argyraeus (Greene) Greene
  canyon birdsfoot trefoil
Lotus argyraeus var. multicaulis (Ottley) Isely
  canyon birdsfoot trefoil
Lotus argyraeus var. notitius Isely
  canyon birdsfoot trefoil
Lotus benthamii Greene
  Bentham's broom
Lotus corniculatus L
  birdfoot deervetch
Lotus crassifolius (Benth.) Greene
  big deervetch
Lotus crassifolius var. crassifolius (Benth.) Greene
  big deervetch
Lotus crassifolius var. otayensis Moran ex Isely
  big deervetch
Lotus dendroideus (Greene) Greene
  island broom
Lotus dendroideus var. dendroideus (Greene) Greene
  island broom
Lotus dendroideus var. traskiae (Eastw. ex Noddin) Isely
  Trask's island broom
Lotus dendroideus var. veatchii (Greene) Isely
  Veatch's island broom
Lotus denticulatus (E. Drew) Greene
  riverbar birdsfoot trefoil
Lotus formosissimus Greene
  seaside birdsfoot trefoil
Lotus grandiflorus (Benth.) Greene
  chaparral birdsfoot trefoil
Lotus grandiflorus var. grandiflorus (Benth.) Greene
  chaparral birdsfoot trefoil
Lotus grandiflorus var. macranthus (Greene) Isely
  chaparral birdsfoot trefoil
Lotus hamatus Greene
  San Diego birdsfoot trefoil
Lotus haydonii (Orcutt) Greene
  rock birdsfoot trefoil
Lotus heermannii (Dur. & Hilg.) Greene
  Heermann's birdsfoot trefoil
Lotus heermannii var. heermannii (Dur. & Hilg.) Greene
  Heermann's birdsfoot trefoil
Lotus heermannii var. orbicularis (Gray) Isely
  Heermann's birdsfoot trefoil
Lotus humistratus Greene
  foothill deervetch
Lotus incanus (Torr.) Greene
  woolly birdsfoot trefoil
Lotus junceus (Benth.) Greene
  rush broom
Lotus junceus var. biolettii (Greene) Ottley
  Biolett's rush broom
Lotus junceus var. junceus (Benth.) Greene
  rush broom
Lotus micranthus Benth
  desert deervetch
Lotus nevadensis (S. Wats.) Greene
  Nevada birdsfoot trefoil
Lotus nevadensis var. davidsonii (Greene) Isely
  Davidson's birdsfoot trefoil
Lotus nevadensis var. douglasii (Greene) Ottley
  Douglas' birdsfoot trefoil
Lotus nevadensis var. nevadensis (S. Wats.) Greene
  Nevada birdsfoot trefoil
Lotus nuttallianus Greene
  wire birdsfoot trefoil
Lotus oblongifolius (Benth.) Greene
  streambank birdsfoot trefoil
Lotus oblongifolius var. cupreus (Greene) Ottley
  streambank birdsfoot trefoil
Lotus oblongifolius var. oblongifolius (Benth.) Greene
  streambank birdsfoot trefoil
Lotus pedunculatus Cav
  big trefoil
Lotus pinnatus Hook
  meadow birdsfoot trefoil
Lotus procumbens (Greene) Greene
  silky deerweed
Lotus procumbens var. jepsonii (Ottley) Ottley
  Jepson's silky deerweed
Lotus procumbens var. procumbens (Greene) Greene
  silky deerweed
Lotus rigidus (Benth.) Greene
  shrubby deervetch
Lotus rubriflorus H.K. Sharsmith
  redflower birdsfoot trefoil
Lotus salsuginosus Greene
  coastal birdsfoot trefoil
Lotus salsuginosus var. brevivexillus Ottley
  coastal birdsfoot trefoil
Lotus salsuginosus var. salsuginosus Greene
  coastal birdsfoot trefoil
Lotus scoparius (Nutt.) Ottley
  common deerweed
Lotus scoparius var. brevialatus Ottley
  western birdsfoot trefoil
Lotus scoparius var. scoparius (Nutt.) Ottley
  common deerweed
Lotus stipularis (Benth.) Greene
  balsam birdsfoot trefoil
Lotus stipularis var. ottleyi Isely
  Ottley's birdsfoot trefoil
Lotus stipularis var. stipularis (Benth.) Greene
  balsam birdsfoot trefoil
Lotus strigosus (Nutt.) Greene
  Bishop lotus
Lotus strigosus var. hirtellus (Greene) Ottley
  strigose birdsfoot trefoil
Lotus strigosus var. strigosus (Nutt.) Greene
  strigose birdsfoot trefoil
Lotus strigosus var. tomentellus (Greene) Isely
  desert deervetch
Lotus tenuis Waldst. & Kit. ex Willd
  narrowleaf birdsfoot trefoil
Lotus unifoliolatus (Hook.) Benth
  American birdsfoot trefoil
Lotus unifoliolatus var. unifoliolatus (Hook.) Benth
  prairie trefoil
Lotus wrangelianus Fisch. & C.A. Mey
  Chilean birdsfoot trefoil
Lotus yollabolliensis Munz
  Yolla Bolly birdsfoot trefoil
Lupinus X alpestris A. Nels. (pro sp.)
  lupine
Lupinus X inyoensis Heller (pro sp.)
  Inyo lupine
Lupinus abramsii C.P. Sm
  Abrams' lupine
Lupinus adsurgens E. Drew
  Drew's silky lupine
Lupinus adsurgens var. adsurgens E. Drew
  Drew's silky lupine
Lupinus adsurgens var. lilacinus Heller ex C.P. Sm
  Drew's silky lupine
Lupinus adsurgens var. undulatus C.P. Sm
  Drew's silky lupine
Lupinus affinis J.G. Agardh
  fleshy lupine
Lupinus agardhianus Heller
  bajada lupine
Lupinus albicaulis Dougl
  sicklekeel lupine
Lupinus albicaulis var. albicaulis Dougl
  sicklekeel lupine
Lupinus albicaulis var. shastensis (Heller) C.P. Sm
  Shasta lupine
Lupinus albifrons Benth. ex Lindl
  silver lupine
Lupinus albifrons var. albifrons Benth. ex Lindl
  silver lupine
Lupinus albifrons var. collinus Greene
  silver lupine
Lupinus albifrons var. douglasii (J.G. Agardh) C.P. Sm
  Douglas' silver lupine
Lupinus albifrons var. eminens (Greene) C.P. Sm
  silver lupine
Lupinus albifrons var. flumineus C.P. Sm
  silver lupine
Lupinus andersonii S. Wats
  Anderson's lupine
Lupinus angustiflorus Eastw
  narrowflower lupine
Lupinus antoninus Eastw
  Anthony Peak lupine
Lupinus apertus Heller
  summit lupine
Lupinus arboreus Sims
  bush lupine
Lupinus arboreus var. arboreus Sims
  bush lupine
Lupinus arboreus var. eximius (Burtt-Davy) C.P. Sm
  bush lupine
Lupinus arbustus Dougl. ex Lindl
  longspur lupine
Lupinus arbustus ssp. arbustus Dougl. ex Lindl
  longspur lupine
Lupinus arbustus ssp. arbustus var. arbustus Dougl. ex Lindl
  longspur lupine
Lupinus arbustus ssp. arbustus var. montanus (T.J. Howell) D. Dunn
  longspur lupine
Lupinus arbustus ssp. calcaratus (Kellogg) D. Dunn
  quakerbonnet lupine
Lupinus arbustus ssp. silvicola (Heller) D. Dunn
  longspur lupine
Lupinus argenteus Pursh
  silvery lupine
Lupinus argenteus ssp. argenteus Pursh
  silvery lupine
Lupinus argenteus ssp. argenteus var. argenteus Pursh
  silvery lupine
Lupinus argenteus ssp. argenteus var. laxiflorus (Dougl. ex Lindl.) Dorn
  spur lupine
Lupinus aridus Dougl
  desert lupine
Lupinus arizonicus (S. Wats.) S. Wats
  Arizona lupine
Lupinus arizonicus ssp. arizonicus (S. Wats.) S. Wats
  Arizona lupine
Lupinus arizonicus ssp. arizonicus var. barbatulus (Thornb. ex C.P. Sm.) Thornb. ex I.M. Johnston
  Arizona lupine
Lupinus benthamii Heller
  spider lupine
Lupinus benthamii var. benthamii Heller
  Bentham's lupine
Lupinus benthamii var. opimus C.P. Sm
  spider lupine
Lupinus bicolor Lindl
  bicolor lupine
Lupinus bicolor ssp. bicolor Lindl
  bicolor lupine
Lupinus bicolor ssp. marginatus D. Dunn
  annual lupine
Lupinus bicolor ssp. microphyllus (S. Wats.) D. Dunn
  annual lupine
Lupinus bicolor ssp. pipersmithii (Heller) D. Dunn
  Pipersmith's lupine
Lupinus bicolor ssp. tridentatus (Eastw. ex C.P. Sm.) D. Dunn
  annual lupine
Lupinus bicolor ssp. tridentatus var. rostratus (Eastw.) Jepson
  annual lupine
Lupinus bicolor ssp. tridentatus var. tridentatus Eastw. ex C.P. Sm
  annual lupine
Lupinus bicolor ssp. umbellatus (Greene) D. Dunn
  annual lupine
Lupinus bicolor ssp. umbellatus var. trifidus (Torr. ex S. Wats.) C.P. Sm
  annual lupine
Lupinus bicolor ssp. umbellatus var. umbellatus (Greene) C.P. Sm
  annual lupine
Lupinus brevicaulis S. Wats
  shortstem lupine
Lupinus brevior (Jepson) Christian & D. Dunn
  short lupine
Lupinus breweri Gray
  Brewer's lupine
Lupinus breweri var. breweri Gray
  Brewer's lupine
Lupinus breweri var. bryoides C.P. Sm
  matted lupine
Lupinus breweri var. grandiflorus C.P. Sm
  matted lupine
Lupinus breweri var. parvulus C.P. Sm
  matted lupine
Lupinus burkei S. Wats
  largeleaf lupine
Lupinus caespitosus Nutt
  stemless dwarf lupine
Lupinus caudatus Kellogg
  tailcup lupine
Lupinus caudatus ssp. caudatus Kellogg
  tailcup lupine
Lupinus caudatus ssp. montigenus (Heller) Hess & D. Dunn
  Kellogg's spurred lupine
Lupinus cervinus Kellogg
  Santa Lucia lupine
Lupinus chamissonis Eschsch
  chamisso bush lupine
Lupinus citrinus Kellogg
  orangeflower lupine
Lupinus citrinus var. citrinus Kellogg
  orangeflower lupine
Lupinus citrinus var. deflexus (Congd.) Jepson
  orangeflower lupine
Lupinus concinnus J.G. Agardh
  scarlet lupine
Lupinus concinnus ssp. concinnus J.G. Agardh
  scarlet lupine
Lupinus concinnus ssp. optatus (C.P. Sm.) D. Dunn
  scarlet lupine
Lupinus concinnus ssp. orcuttii (S. Wats.) D. Dunn
  Orcutt's lupine
Lupinus confertus Kellogg
  crowded lupine
Lupinus congdonii (C.P. Sm.) D. Dunn
  Congdon's lupine
Lupinus constancei T.W. & J.P. Nelson
  lassicus lupine
Lupinus covillei Greene
  shaggy lupine
Lupinus croceus Eastw
  Mt. Eddy lupine
Lupinus croceus var. croceus Eastw
  Mt. Eddy lupine
Lupinus croceus var. pilosellus (Eastw.) Munz
  Mt. Eddy lupine
Lupinus culbertsonii Greene
  Hoskett Meadows lupine
Lupinus culbertsonii ssp. culbertsonii Greene
  Culbertson's lupine
Lupinus culbertsonii ssp. hypolasius (Greene) Cox
  Hoskett Meadows lupine
Lupinus dalesiae Eastw
  Quincy lupine
Lupinus densiflorus Benth
  whitewhorl lupine
Lupinus densiflorus var. aureus (Kellogg) Munz
  whitewhorl lupine
Lupinus densiflorus var. austrocollium C.P. Sm
  whitewhorl lupine
Lupinus densiflorus var. densiflorus Benth
  whitewhorl lupine
Lupinus densiflorus var. glareosus (Elmer) C.P. Sm
  whitewhorl lupine
Lupinus densiflorus var. lacteus (Kellogg) C.P. Sm
  whitewhorl lupine
Lupinus densiflorus var. palustris (Kellogg) C.P. Sm
  whitewhorl lupine
Lupinus duranii Eastw
  Mono Lake lupine
Lupinus elatus I.M. Johnston
  tall silky lupine
Lupinus excubitus M.E. Jones
  Inyo bush lupine
Lupinus excubitus var. austromontanus (Heller) C.P. Sm
  interior bush lupine
Lupinus excubitus var. excubitus M.E. Jones
  interior bush lupine
Lupinus excubitus var. hallii (Abrams) C.P. Sm
  Hall's bush lupine
Lupinus excubitus var. johnstonii C.P. Sm
  Johnston's bush lupine
Lupinus excubitus var. medius (Jepson) Munz
  interior bush lupine
Lupinus flavoculatus Heller
  yelloweyes
Lupinus formosus Greene
  summer lupine
Lupinus formosus var. formosus Greene
  summer lupine
Lupinus formosus var. robustus C.P. Sm
  summer lupine
Lupinus fulcratus Greene
  greenstipule lupine
Lupinus gracilentus Greene
  green slender lupine
Lupinus grayi (S. Wats.) S. Wats
  Sierran lupine
Lupinus guadalupensis Greene
  Guadalupe Island lupine
Lupinus hirsutissimus Benth
  stinging annual lupine
Lupinus holmgrenianus C.P. Sm
  Holmgren's lupine
Lupinus horizontalis Heller
  sunset lupine
Lupinus horizontalis var. horizontalis Heller
  sunset lupine
Lupinus horizontalis var. platypetalus C.P. Sm
  sunset lupine
Lupinus hyacinthinus Greene
  San Jacinto lupine
Lupinus lapidicola Heller
  Heller's dwarf lupine
Lupinus latifolius Lindl. ex J.G. Agardh
  broadleaf lupine
Lupinus latifolius ssp. dudleyi (Rydb.) Kenney & D. Dunn
  Dudley's lupine
Lupinus latifolius ssp. latifolius Lindl. ex J.G. Agardh
  broadleaf lupine
Lupinus latifolius ssp. longipes (Greene) Kenney & D. Dunn
  broadleaf lupine
Lupinus latifolius ssp. parishii (C.P. Sm.) Kenney & D. Dunn
  Parish's lupine
Lupinus latifolius ssp. viridifolius (Heller) Kenney & D. Dunn
  broadleaf lupine
Lupinus latifolius ssp. viridifolius var. barbatus (Henderson) Munz
  broadleaf lupine
Lupinus latifolius ssp. viridifolius var. viridifolius (Heller) C.P. Sm
  broadleaf lupine
Lupinus leucophyllus Dougl. ex Lindl
  velvet lupine
Lupinus leucophyllus ssp. leucophyllus Dougl. ex Lindl
  velvet lupine
Lupinus leucophyllus ssp. leucophyllus var. belliae C.P. Sm
  velvet lupine
Lupinus leucophyllus ssp. leucophyllus var. canescens (T.J. Howell) C.P. Sm
  velvet lupine
Lupinus leucophyllus ssp. leucophyllus var. leucophyllus Dougl. ex Lindl
  velvet lupine
Lupinus littoralis Dougl
  seashore lupine
Lupinus longifolius (S. Wats.) Abrams
  longleaf bush lupine
Lupinus ludovicianus Greene
  San Luis lupine
Lupinus luteolus Kellogg
  pale yellow lupine
Lupinus lyallii Gray
  dwarf mountain lupine
Lupinus lyallii ssp. lyallii Gray
  Lyall's lupine
Lupinus lyallii ssp. lyallii var. danaus (Gray) S. Wats
  Lyall's lupine
Lupinus lyallii ssp. lyallii var. lyallii Gray
  Lyall's lupine
Lupinus lyallii ssp. lyallii var. villosus Jepson
  Lyall's lupine
Lupinus lyallii ssp. washoensis (Heller) Cox
  Washoe lupine
Lupinus magnificus M.E. Jones
  Panamint Mountain lupine
Lupinus magnificus var. glarecola M.E. Jones
  Panamint Mountain lupine
Lupinus magnificus var. hesperius (Heller) C.P. Sm
  Panamint Mountain lupine
Lupinus magnificus var. magnificus M.E. Jones
  Panamint Mountain lupine
Lupinus meionanthus Gray
  Lake Tahoe lupine
Lupinus nanus Dougl. ex Benth
  sky lupine
Lupinus nanus ssp. latifolius (Benth. ex Torr.) D. Dunn
  sky lupine
Lupinus nanus ssp. menkerae (C.P. Sm.) D. Dunn
  Menker's lupine
Lupinus nanus ssp. nanus Dougl. ex Benth
  sky lupine
Lupinus nevadensis Heller
  Nevada lupine
Lupinus obtusilobus Heller
  bluntlobe lupine
Lupinus odoratus Heller
  Mojave royal lupine
Lupinus odoratus var. odoratus Heller
  Mojave royal lupine
Lupinus odoratus var. pilosellus C.P. Sm
  Mojave royal lupine
Lupinus onustus S. Wats
  Plumas lupine
Lupinus pachylobus Greene
  Mt. Diablo lupine
Lupinus padre-crowleyi C.P. Sm
  Dedecker lupine
Lupinus pallidus Brandeg
  pale desert lupine
Lupinus palmeri S. Wats
  bluebonnet lupine
Lupinus peirsonii Mason
  long lupine
Lupinus polycarpus Greene
  smallflower lupine
Lupinus polyphyllus Lindl
  bigleaf lupine
Lupinus polyphyllus ssp. bernardianus (Abrams ex C.P. Sm.) Munz
  bigleaf lupine
Lupinus polyphyllus ssp. polyphyllus Lindl
  bigleaf lupine
Lupinus polyphyllus ssp. polyphyllus var. grandifolius (Lindl. ex J.G. Agardh) Torr. & Gray
  bigleaf lupine
Lupinus polyphyllus ssp. polyphyllus var. pallidipes (Heller) C.P. Sm
  bigleaf lupine
Lupinus polyphyllus ssp. polyphyllus var. polyphyllus Lindl
  bigleaf lupine
Lupinus polyphyllus ssp. superbus (Heller) Munz
  bigleaf lupine
Lupinus pratensis Heller
  Inyo Meadow lupine
Lupinus pratensis var. eriostachyus C.P. Sm
  Inyo Meadow lupine
Lupinus pratensis var. pratensis Heller
  Inyo Meadow lupine
Lupinus prunophilus M.E. Jones
  hairy bigleaf lupine
Lupinus punto-reyesensis C.P. Sm
  Point reyes lupine
Lupinus pusillus Pursh
  rusty lupine
Lupinus pusillus ssp. intermontanus (Heller) D. Dunn
  Intermountain lupine
Lupinus pusillus ssp. rubens (Rydb.) D. Dunn
  rusty lupine
Lupinus rivularis Dougl. ex Lindl
  riverbank lupine
Lupinus ruber Heller
  red lupine
Lupinus saxosus T.J. Howell
  rock lupine
Lupinus sellulus Kellogg
  Donner Lake lupine
Lupinus sellulus ssp. sellulus Kellogg
  Donner Lake lupine
Lupinus sellulus ssp. sellulus var. artulus (Jepson) Eastw
  Donner Lake lupine
Lupinus sellulus ssp. sellulus var. lobbii (Gray ex S. Wats.) Cox
  Lobb's lupine
Lupinus sellulus ssp. sellulus var. medius (Detling) Cox
  Donner Lake lupine
Lupinus sellulus ssp. sellulus var. sellulus Kellogg
  Donner Lake lupine
Lupinus sellulus ssp. ursinus (Eastw.) Munz
  Donner Lake lupine
Lupinus sericatus Kellogg
  Cobb Mountain lupine
Lupinus sericeus Pursh
  silky lupine
Lupinus shockleyi S. Wats
  purple desert lupine
Lupinus sparsiflorus Benth
  Mojave lupine
Lupinus sparsiflorus ssp. inopinatus (C.P. Sm.) Dziekanowski & D. Dunn
  Mojave lupine
Lupinus sparsiflorus ssp. mohavensis Dziekanowski & D. Dunn
  Mojave lupine
Lupinus sparsiflorus ssp. pondii (Greene) Dziekanowski & D. Dunn
  Pond's Mojave lupine
Lupinus sparsiflorus ssp. sparsiflorus Benth
  Mojave lupine
Lupinus spectabilis Hoover
  shaggyhair lupine
Lupinus stiversii Kellogg
  harlequin annual lupine
Lupinus sublanatus Eastw
  Mono lupine
Lupinus subvexus C.P. Sm
  valley lupine
Lupinus subvexus var. albilanatus C.P. Sm
  valley lupine
Lupinus subvexus var. phoeniceus C.P. Sm
  valley lupine
Lupinus subvexus var. subvexus C.P. Sm
  valley lupine
Lupinus subvexus var. transmontanus C.P. Sm
  valley lupine
Lupinus succulentus Dougl. ex K. Koch
  hollowleaf annual lupine
Lupinus succulentus var. succulentus Dougl. ex K. Koch
  hollowleaf annual lupine
Lupinus tidestromii Greene
  clover lupine
Lupinus tidestromii var. layneae (Eastw.) Munz
  clover lupine
Lupinus tidestromii var. tidestromii Greene
  Tidestrom's lupine
Lupinus tracyi Eastw
  Tracy's lupine
Lupinus truncatus Nutt. ex Hook. & Arn
  collared annual lupine
Lupinus uncialis S. Wats
  inchhigh lupine
Lupinus vallicola Heller
  open lupine
Lupinus vallicola ssp. apricus (Greene) D. Dunn
  open lupine
Lupinus vallicola ssp. vallicola Heller
  open lupine
Lupinus versicolor Lindl
  manycolored lupine
Marina orcuttii (S. Wats.) Barneby
  Sonoran false prairieclover
Marina parryi (Torr. & Gray) Barneby
  Parry's false prairieclover
Medicago arabica (L.) Huds
  spotted medick
Medicago lupulina L
  black medick
Medicago minima (L.) L
  burr medick
Medicago orbicularis (L.) Bartalini
  blackdisk medick
Medicago polymorpha L
  burclover
Medicago praecox DC
  Mediterranean medick
Medicago sativa L
  alfalfa
Medicago sativa ssp. sativa L
  alfalfa
Melilotus albus Medik
  = Melilotus officinalis
Melilotus indicus (L.) All
  annual yellow sweetclover
Melilotus officinalis (L.) Lam
  yellow sweetclover
Olneya tesota Gray
  desert ironwood
Ornithopus perpusillus L
  little white birdsfoot
Ornithopus pinnatus (P. Mill.) Druce
  yellow birdsfoot
Ornithopus sativus Brot
  common birdsfoot
Ornithopus sativus ssp. isthmocarpus (Coss.) Dostal
  common birdsfoot
Oxytropis borealis DC
Oxytropis borealis var. viscida (Nutt.) Welsh
Oxytropis deflexa (Pallas) DC
  hangpod crazyweed
Oxytropis deflexa var. sericea Torr. & Gray
  longstem hangpod crazyweed
Oxytropis oreophila Gray
  roundleaf crazyweed
Oxytropis oreophila var. oreophila Gray
  mountain locoweed
Oxytropis parryi Gray
  Parry's crazyweed
Paraserianthes lophantha (Willd.) I. Nielsen
  plume albizia
Parkinsonia aculeata L
  Jerusalem thorn
Parkinsonia florida (Benth. ex Gray) S. Wats
  blue paloverde
Parkinsonia microphylla Torr
  yellow paloverde
Pediomelum californicum (S. Wats.) Rydb
  California scurfpea
Pediomelum castoreum (S. Wats.) Rydb
  beaver scurfpea
Pediomelum mephiticum (S. Wats.) Rydb
  skunktop
Peteria thompsoniae S. Wats
  Thompson's peteria
Phaseolus filiformis Benth
  slimjim bean
Pickeringia montana Nutt. ex Torr. & Gray
  Montana chaparral pea
Pickeringia montana var. montana Nutt. ex Torr. & Gray
  Montana chaparral pea
Pickeringia montana var. tomentosa (Abrams) I.M. Johnston
  Montana chaparral pea
Pisum sativum L
  garden pea
Prosopis glandulosa Torr
  honey mesquite
Prosopis glandulosa var. glandulosa Torr
  honey mesquite
Prosopis glandulosa var. torreyana (L. Benson) M.C. Johnston
  western honey mesquite
Prosopis pubescens Benth
  screwbean mesquite
Prosopis strombulifera (Lam.) Benth
  Argentine screwbean
Prosopis velutina Woot
  velvet mesquite
Psoralea californica S. Wats
  = Pediomelum californicum
Psoralea douglasii Greene
  = Hoita macrostachya
Psoralea lanceolata Pursh
  = Psoralidium lanceolatum
Psoralea macrostachya DC
  = Hoita macrostachya
Psoralea mephitica S. Wats
  = Pediomelum mephiticum
Psoralea orbicularis Lindl
  = Hoita orbicularis
Psoralea physodes Dougl. ex Hook
  = Rupertia physodes
Psoralea rigida Parish
  = Rupertia rigida
Psoralidium lanceolatum (Pursh) Rydb
  lemon scurfpea
Psorothamnus arborescens (Torr. ex Gray) Barneby
  Mojave dalea
Psorothamnus arborescens var. arborescens (Torr. ex Gray) Barneby
  Saunder's dalea
Psorothamnus arborescens var. minutifolius (Parish) Barneby
  Johnson's dalea
Psorothamnus arborescens var. simplifolius (Parish) Barneby
  California dalea
Psorothamnus emoryi (Gray) Rydb
  dyebush
Psorothamnus fremontii (Torr. ex Gray) Barneby
  Fremont's dalea
Psorothamnus fremontii var. attenuatus Barneby
  Fremont's dalea
Psorothamnus fremontii var. fremontii (Torr. ex Gray) Barneby
  Fremont's dalea
Psorothamnus polydenius (Torr. ex S. Wats.) Rydb
  Nevada smokebush
Psorothamnus polydenius var. polydenius (Torr. ex S. Wats.) Rydb
  Nevada smokebush
Psorothamnus schottii (Torr.) Barneby
  Schott's dalea
Psorothamnus spinosus (Gray) Barneby
  smoketree
Robinia neomexicana Gray
  New Mexico locust
Robinia neomexicana var. neomexicana Gray
  New Mexico locust
Robinia pseudoacacia L
  black locust
Rupertia physodes (Dougl. ex Hook.) J. Grimes
  California tea
Rupertia rigida (Parish) J. Grimes
  Parish's California tea
Sarothamnus scoparius (L.) Wimmer ex Koch
  = Cytisus scoparius
Senna alata (L.) Roxb
  emperor's candlesticks
Senna armata (S. Wats.) Irwin & Barneby
  desertsenna
Senna covesii (Gray) Irwin & Barneby
  Coves' cassia
Senna didymobotrya (Fresen.) Irwin & Barneby
  African wild sensitive plant
Senna hirsuta (L.) Irwin & Barneby
  woolly wild sensitive plant
Senna hirsuta var. hirsuta (L.) Irwin & Barneby
  woolly wild sensitive plant
Sesbania herbacea (P. Mill.) McVaugh
Spartium junceum L
  Spanish broom
Sphaerophysa salsula (Pallas) DC
  alkali swainsonpea
Thermopsis californica S. Wats
Thermopsis californica var. argentata (Greene) C.J. Chen & B.L. Turner
Thermopsis californica var. semota (Jepson) C.J. Chen & B.L. Turner
Thermopsis gracilis T.J. Howell
Thermopsis gracilis var. gracilis T.J. Howell
Thermopsis macrophylla Hook. & Arn
  California goldenbanner
Thermopsis macrophylla var. macrophylla Hook. & Arn
  California goldenbanner
Trifolium albopurpureum Torr. & Gray
  rancheria clover
Trifolium amoenum Greene
  showy Indian clover
Trifolium andersonii Gray
  fiveleaf clover
Trifolium andersonii ssp. andersonii Gray
  Anderson's clover
Trifolium andersonii ssp. beatleyae J. Gillett
  Beatley's clover
Trifolium andersonii ssp. monoense (Greene) J. Gillett
  Mono clover
Trifolium angustifolium L
  narrowleaf crimson clover
Trifolium arvense L
  rabbitfoot clover
Trifolium aureum Pollich
  golden clover
Trifolium barbigerum Torr
  bearded clover
Trifolium barbigerum var. andrewsii Gray
  Andrews' clover
Trifolium barbigerum var. barbigerum Torr
  bearded clover
Trifolium beckwithii Brewer ex S. Wats
  Beckwith's clover
Trifolium bifidum Gray
  notchleaf clover
Trifolium bolanderi Gray
  parasol clover
Trifolium breweri S. Wats
  forest clover
Trifolium campestre Schreb
  field clover
Trifolium ciliolatum Benth
  foothill clover
Trifolium cyathiferum Lindl
  cup clover
Trifolium dedeckerae J. Gillett
  Dedecker's clover
Trifolium depauperatum Desv
  cowbag clover
Trifolium depauperatum var. amplectens (Torr. & Gray) S. Wats
  balloon sack clover
Trifolium depauperatum var. depauperatum Desv
  cowbag clover
Trifolium depauperatum var. diversifolium (Nutt.) McDermott
  balloon sack clover
Trifolium depauperatum var. stenophyllum (Nutt.) McDermott
  balloon sack clover
Trifolium dichotomum Hook. & Arn
  branched Indian clover
Trifolium dubium Sibthorp
  suckling clover
Trifolium eriocephalum Nutt
  woollyhead clover
Trifolium eriocephalum ssp. cusickii (Piper) J. Gillett
  Cusick's clover
Trifolium eriocephalum ssp. eriocephalum Nutt
  woollyhead clover
Trifolium fragiferum L
  strawberry clover
Trifolium fucatum Lindl
  bull clover
Trifolium glomeratum L
  clustered clover
Trifolium gracilentum Torr. & Gray
  pinpoint clover
Trifolium gracilentum var. gracilentum Torr. & Gray
  pinpoint clover
Trifolium gracilentum var. palmeri (S. Wats.) McDermott
  Palmer's clover
Trifolium gymnocarpon Nutt
  hollyleaf clover
Trifolium gymnocarpon ssp. plummerae (S. Wats.) J. Gillett
  Plummer's clover
Trifolium hirtum All
  rose clover
Trifolium howellii S. Wats
  canyon clover
Trifolium hybridum L
  alsike clover
Trifolium incarnatum L
  crimson clover
Trifolium lemmonii S. Wats
  Lemmon's clover
Trifolium longipes Nutt
  longstalk clover
Trifolium longipes ssp. atrorubens (Greene) J. Gillett
  longstalk clover
Trifolium longipes ssp. elmeri (Greene) J. Gillett
  Elmer's clover
Trifolium longipes ssp. hansenii (Greene) J. Gillett
  Hansen's clover
Trifolium longipes ssp. longipes Nutt
  longstalk clover
Trifolium longipes ssp. oreganum (T.J. Howell) J. Gillett
  Oregon clover
Trifolium longipes ssp. shastense (House) J. Gillett
  Shasta clover
Trifolium macraei Hook. & Arn
  Chilean clover
Trifolium macrocephalum (Pursh) Poir
  largehead clover
Trifolium microcephalum Pursh
  smallhead clover
Trifolium microdon Hook. & Arn
  thimble clover
Trifolium monanthum Gray
  mountain carpet clover
Trifolium monanthum ssp. grantianum (Heller) J. Gillett
  mountain carpet clover
Trifolium monanthum ssp. monanthum Gray
  mountain carpet clover
Trifolium monanthum ssp. parvum (Kellogg) J. Gillett
  mountain carpet clover
Trifolium monanthum ssp. tenerum (Eastw.) J. Gillett
  mountain carpet clover
Trifolium obtusiflorum Hook. f
  clammy clover
Trifolium oliganthum Steud
  fewflower clover
Trifolium olivaceum Greene
  olive clover
Trifolium polyodon Greene
  Pacific Grove clover
Trifolium pratense L
  red clover
Trifolium productum Greene
  Shasta clover
Trifolium repens L
  white clover
Trifolium resupinatum L
  reversed clover
Trifolium subterraneum L
  subterranean clover
Trifolium trichocalyx Heller
  Monterey clover
Trifolium variegatum Nutt
  whitetip clover
Trifolium willdenowii Spreng
  tomcat clover
Trifolium wormskioldii Lehm
  cows clover
Ulex europaeus L
  common gorse
Vicia americana Muhl. ex Willd
  American vetch
Vicia americana ssp. americana Muhl. ex Willd
  American vetch
Vicia americana ssp. minor (Hook.) C.R. Gunn
  mat vetch
Vicia benghalensis L
  reddish tufted vetch
Vicia cracca L
  bird vetch
Vicia disperma DC
  European vetch
Vicia ervilia (L.) Willd
  blister vetch
Vicia faba L
  horsebean
Vicia hassei S. Wats
  Hasse's vetch
Vicia hirsuta (L.) S.F. Gray
  tiny vetch
Vicia ludoviciana Nutt
  Louisiana vetch
Vicia ludoviciana ssp. ludoviciana Nutt
  slim vetch
Vicia lutea L
  smooth yellow vetch
Vicia nigricans Hook. & Arn
  black vetch
Vicia nigricans ssp. gigantea (Hook.) Lassetter & Gunn
  giant vetch
Vicia pannonica Crantz
  Hungarian vetch
Vicia sativa L
  common vetch
Vicia sativa ssp. nigra (L.) Ehrh
  common vetch
Vicia sativa ssp. sativa L
  garden vetch
Vicia tetrasperma (L.) Schreb
  lentil vetch
Vicia tetrasperma var. tetrasperma (L.) Moench
  lentil vetch
Vicia villosa Roth
  winter vetch
Vicia villosa ssp. varia (Host) Corb
  winter vetch
Vicia villosa ssp. villosa Roth
  winter vetch

LEMNACEAE
Lemna aequinoctialis Welw.
  lesser duckweed
Lemna gibba L.
  swollen duckweed
Lemna minor L.
  common duckweed
Lemna minuta Kunth
  least duckweed
Lemna perpusilla Torr.
  minute duckweed
Lemna trisulca L.
  star duckweed
Lemna turionifera Landolt
  turion duckweed
Lemna valdiviana Phil.
  valdivia duckweed
Spirodela polyrrhiza (L.) Schleid.
  common duckweed
Spirodela punctata (G.F.W. Mey.) C.H. Thompson
  dotted duckweed
Wolffia arrhiza (L.) Horkel ex C.F.H. Wimmer
  spotless watermeal
Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi
  northern watermeal
Wolffia braziliensis Weddell
  Brazilian watermeal
Wolffia columbiana Karst.
  Columbian watermeal
Wolffia globosa (Roxb.) Hartog & Plas
  Asian watermeal
Wolffiella lingulata (Hegelm.) Hegelm.
  tongueshape bogmat
Wolffiella oblonga (Phil.) Hegelm.
  saber bogmat

LENNOACEAE
Ammobroma sonorae Torr. ex Gray
  = Pholisma sonorae
Pholisma arenarium Nutt. ex Hook.
  desert christmas tree
Pholisma sonorae (Torr. ex Gray) Yatskievych
  sandfood

LENTIBULARIACEAE
Pinguicula macroceras Link
  California butterwort
Utricularia fibrosa Walt.
  fibrous bladderwort
Utricularia gibba L.
  humped bladderwort
Utricularia intermedia Hayne
  flatleaf bladderwort
Utricularia macrorhiza Le Conte
  common bladderwort
Utricularia minor L.
  lesser bladderwort

LILIACEAE
Allium abramsii (Ownbey & Aase) McNeal
  Abrams' allium
Allium acuminatum Hook.
  tapertip onion
Allium amplectens Torr.
  narrowleaf onion
Allium anceps Kellogg
  twinleaf onion
Allium atrorubens S. Wats.
  darkred onion
Allium atrorubens var. atrorubens S. Wats.
  darkred onion
Allium atrorubens var. cristatum (S. Wats.) McNeal
  wild onion
Allium bisceptrum S. Wats.
  twincrest onion
Allium bisceptrum var. bisceptrum S. Wats.
  twincrest onion
Allium bolanderi S. Wats.
  Bolander's onion
Allium bolanderi var. bolanderi S. Wats.
  Bolander's onion
Allium bolanderi var. stenanthum (E. Drew) Jepson
  Bolander's onion
Allium burlewii A. Davids.
  Burlew's onion
Allium campanulatum S. Wats.
  dusky onion
Allium cratericola Eastw.
  Cascade onion
Allium crispum Greene
  crinkled onion
Allium denticulatum (Ownbey & Aase) McNeal
  toothed wild onion
Allium diabolense (Ownbey & Aase) McNeal
  wild onion
Allium dichlamydeum Greene
  coastal onion
Allium falcifolium Hook. & Arn.
  scytheleaf onion
Allium fimbriatum S. Wats.
  fringed onion
Allium fimbriatum var. fimbriatum S. Wats.
  fringed onion
Allium fimbriatum var. mohavense (Tidestrom) Jepson
  Mojave fringed onion
Allium fimbriatum var. purdyi (Eastw.) Ownbey & Aase
  Purdy's fringed onion
Allium haematochiton S. Wats.
  redskin onion
Allium hickmanii Eastw.
  Hickman's onion
Allium hoffmanii Ownbey
  beegum onion
Allium howellii Eastw.
  Howell's onion
Allium howellii var. clokeyi Ownbey & Aase
  Clokey's onion
Allium howellii var. howellii Eastw.
  Howell's onion
Allium howellii var. sanbenitense (Traub) Ownbey & Aase
  San Benito onion
Allium hyalinum Curran
  glassy onion
Allium jepsonii (Ownbey & Aase) S. Denison & McNeal
  Jepson's onion
Allium lacunosum S. Wats.
  pitted onion
Allium lacunosum var. davisiae (M.E. Jones) McNeal & Ownbey
  pitted onion
Allium lacunosum var. kernense McNeal & Ownbey
  Kern's pitted onion
Allium lacunosum var. lacunosum S. Wats.
  pitted onion
Allium lacunosum var. micranthum Eastw.
  pitted onion
Allium lemmonii S. Wats.
  Lemmon's onion
Allium membranaceum Ownbey
  papery onion
Allium monticola A. Davids.
  San Bernardino Mountain onion
Allium monticola var. monticola A. Davids.
  San Bernardino Mountain onion
Allium munzii (Ownbey & Aase) McNeal
  Munz's allium
Allium neapolitanum Cirillo
  white garlic
Allium nevadense S. Wats.
  Nevada onion
Allium nevadense var. nevadense S. Wats.
  Nevada onion
Allium obtusum J.G. Lemmon
  red Sierran onion
Allium obtusum var. conspicuum Mortola & McNeal
  red Sierran onion
Allium obtusum var. obtusum J.G. Lemmon
  red Sierran onion
Allium parishii S. Wats.
  Parish's onion
Allium parryi S. Wats.
  Parry's fringed onion
Allium parvum Kellogg
  small onion
Allium peninsulare J.G. Lemmon ex Greene
  Mexicali onion
Allium platycaule S. Wats.
  broadstemmed onion
Allium praecox Brandeg.
  early onion
Allium sanbornii Wood
  Sanborn's onion
Allium sanbornii var. congdonii Jepson
  Congdon's onion
Allium sanbornii var. sanbornii Wood
  Sanborn's onion
Allium serra McNeal & Ownbey
  jeweled onion
Allium serratum S. Wats.
  pompom onion
Allium sharsmithiae (Ownby & Aase) McNeal
Allium shevockii McNeal
  Spanish needle onion
Allium siskiyouense Ownbey
  Siskiyou onion
Allium tolmiei (Hook.) Baker ex S. Wats.
  Tolm's onion
Allium tribracteatum Torr.
  threebract onion
Allium triquetrum L.
  threecorner leek
Allium tuolumnense (Ownbey & Aase) S. Denison & McNeal
  serpentine onion
Allium unifolium Kellogg
  oneleaf onion
Allium validum S. Wats.
  Pacific onion
Allium yosemitense Eastw.
  Yosemite onion
Androstephium breviflorum S. Wats.
  pink funnellily
Asparagus asparagoides (L.) Druce
  African asparagus fern
Asparagus densiflorus (Kunth) Jessop
  Sprenger's asparagus fern
Asparagus officinalis L.
  garden asparagus
Asphodelus fistulosus L.
  onionweed
Bloomeria crocea (Torr.) Coville
  common goldenstars
Bloomeria crocea var. aurea (Kellogg) Ingram
  common goldenstars
Bloomeria crocea var. crocea (Torr.) Coville
  common goldenstars
Bloomeria crocea var. montana (Greene) Ingram
  common goldenstars
Bloomeria humilis Hoover
  dwarf goldenstars
Brodiaea appendiculata Hoover
  appendage clusterlily
Brodiaea californica Lindl.
  California clusterlily
Brodiaea californica var. leptandra (Greene) Hoover
Brodiaea coronaria (Salisb.) Engl.
  harvest clusterlily
Brodiaea coronaria ssp. coronaria (Salisb.) Engl.
  harvest clusterlily
Brodiaea coronaria ssp. rosea (Greene) Niehaus
  harvest clusterlily
Brodiaea elegans Hoover
  elegant clusterlily
Brodiaea elegans ssp. elegans Hoover
  elegant clusterlily
Brodiaea filifolia S. Wats.
  threadleaf clusterlily
Brodiaea insignis (Jepson) Niehaus
  Kaweah clusterlily
Brodiaea jolonensis Eastw.
  chaparral clusterlily
Brodiaea kinkiensis Niehaus
  San Clemente Island clusterlily
Brodiaea minor (Benth.) S. Wats.
  vernalpool clusterlily
Brodiaea orcuttii (Greene) Baker
  Orcutt's clusterlily
Brodiaea pallida Hoover
  Chinese Camp clusterlily
Brodiaea purdyi Eastw.
  Sierran clusterlily
Brodiaea stellaris S. Wats.
  starflower clusterlily
Brodiaea terrestris Kellogg
  dwarf clusterlily
Brodiaea terrestris ssp. kernensis (Hoover) Niehaus
  Kern clusterlily
Brodiaea terrestris ssp. terrestris Kellogg
  dwarf clusterlily
Calochortus albus Dougl. ex Benth.
  white globelily
Calochortus amabilis Purdy
  short lily
Calochortus amoenus Greene
  purple globelily
Calochortus bruneaunis A. Nels. & J.F. Macbr.
  Bruneau Mariposa lily
Calochortus catalinae S. Wats.
  Santa Catalina Mariposa lily
Calochortus clavatus S. Wats.
  clubhair Mariposa lily
Calochortus clavatus var. avius Jepson
  clubhair Mariposa lily
Calochortus clavatus var. clavatus S. Wats.
  clubhair Mariposa lily
Calochortus clavatus var. gracilis Ownbey
  clubhair Mariposa lily
Calochortus clavatus var. pallidus (Hoover) R. Fiedler & P. Zebell
  clubhair Mariposa lily
Calochortus clavatus var. recurvifolius (Hoover) R. Fiedler & P. Zebell
  clubhair Mariposa lily
Calochortus coeruleus (Kellogg) S. Wats.
  beavertail grass
Calochortus coeruleus var. coeruleus (Kellogg) S. Wats.
  beavertail grass
Calochortus concolor (Baker) Purdy
  goldenbowl Mariposa lily
Calochortus dunnii Purdy
  Dunn's Mariposa lily
Calochortus elegans Pursh
  northwestern Mariposa lily
Calochortus elegans var. nanus Wood
Calochortus elegans var. oreophilus Ownbey
  elegant Mariposa lily
Calochortus excavatus Greene
  Inyo Mariposa lily
Calochortus flexuosus S. Wats.
  winding Mariposa lily
Calochortus greenei S. Wats.
  Greene's Mariposa lily
Calochortus invenustus Greene
  plain Mariposa lily
Calochortus kennedyi Porter
  desert Mariposa lily
Calochortus leichtlinii Hook. f.
  smokey Mariposa
Calochortus longebarbatus S. Wats.
  longbeard Mariposa lily
Calochortus longebarbatus var. longebarbatus S. Wats.
  longbeard Mariposa lily
Calochortus luteus Dougl. ex Lindl.
  yellow Mariposa lily
Calochortus macrocarpus Dougl.
  sagebrush Mariposa lily
Calochortus macrocarpus var. macrocarpus Dougl.
  sagebrush Mariposa lily
Calochortus minimus Ownbey
  Sierran Mariposa lily
Calochortus monanthus Ownbey
  Shasta River Mariposa lily
Calochortus monophyllus (Lindl.) Lem.
  yellow startulip
Calochortus nudus S. Wats.
  naked Mariposa lily
Calochortus obispoensis J.G. Lemmon
  San Luis Mariposa lily
Calochortus palmeri S. Wats.
  Palmer's Mariposa lily
Calochortus palmeri var. munzii Ownbey
  Munz's Mariposa lily
Calochortus palmeri var. palmeri S. Wats.
  Palmer's Mariposa lily
Calochortus panamintensis (Ownbey) Reveal
  Panamint Mountain Mariposa lily
Calochortus persistens Ownbey
  Siskiyou Mariposa lily
Calochortus plummerae Greene
  Plummer's Mariposa lily
Calochortus pulchellus Dougl. ex Benth.
  Mount Diablo globelily
Calochortus raichei Farwig & Girard
  Cedars Mariposa lily
Calochortus simulans (Hoover) Munz
  San Luis Obispo Mariposa lily
Calochortus splendens Dougl. ex Benth.
  splendid Mariposa lily
Calochortus striatus Parish
  alkali Mariposa lily
Calochortus superbus Purdy ex J.T. Howell
  yellow Mariposa
Calochortus tiburonensis A.J. Hill
  Tiburon Mariposa lily
Calochortus tolmiei Hook. & Arn.
  Tolmie startulip
Calochortus umbellatus Wood
  Oakland Mariposa lily
Calochortus uniflorus Hook. & Arn.
  Monterey Mariposa lily
Calochortus venustus Dougl. ex Benth.
  butterfly Mariposa lily
Calochortus vestae Purdy
  coast range Mariposa lily
Calochortus weedii Wood
  Weed's Mariposa lily
Calochortus weedii var. intermedius Ownbey
  Weed's Mariposa lily
Calochortus weedii var. vestus Purdy
  Weed's Mariposa lily
Calochortus weedii var. weedii Wood
  Weed's Mariposa lily
Calochortus westonii Eastw.
  Shirley Meadows Mariposa lily
Camassia leichtlinii (Baker) S. Wats.
  large camas
Camassia leichtlinii ssp. suksdorfii (Greenm.) Gould
  Suksdorf's large camas
Camassia quamash (Pursh) Greene
  small camas
Camassia quamash ssp. breviflora Gould
  small camas
Camassia quamash ssp. linearis Gould
  small camas
Chlorogalum angustifolium Kellogg
  narrowleaf soapplant
Chlorogalum grandiflorum Hoover
  red hills soapplant
Chlorogalum parviflorum S. Wats.
  smallflower soapplant
Chlorogalum pomeridianum (DC.) Kunth
  wavyleaf soapplant
Chlorogalum pomeridianum var. divaricatum (Lindl.) Hoover
  wavyleaf soapplant
Chlorogalum pomeridianum var. minus Hoover
  wavyleaf soapplant
Chlorogalum pomeridianum var. pomeridianum (DC.) Kunth
  wavyleaf soapplant
Chlorogalum purpureum Brandeg.
  purple anole
Chlorogalum purpureum var. purpureum Brandeg.
  purple anole
Chlorogalum purpureum var. reductum Hoover
  purple anole
Chlorophytum capense (L.) Voss
  bracketplant
Clintonia andrewsiana Torr.
  western bluebeadlily
Clintonia uniflora (Menzies ex J.A. & J.H. Schultes) Kunth
  bride's bonnet
Dichelostemma capitatum (Benth.) Wood
  bluedicks
Dichelostemma capitatum ssp. capitatum (Benth.) Wood
  bluedicks
Dichelostemma ida-maia (Wood) Greene
  Ida May's snakelily
Dichelostemma multiflorum (Benth.) Heller
  roundtooth snakelily
Dichelostemma venustum (Greene) Hoover
  rose firecracker flower
Dichelostemma volubile (Kellogg) Heller
  twining snakelily
Disporum hookeri (Torr.) Nichols.
  drops of gold
Disporum hookeri var. hookeri (Torr.) Nichols.
  Hooker's drops of gold
Disporum hookeri var. parvifolium (S. Wats.) Britt.
Disporum hookeri var. trachyandrum (Torr.) Q. Jones
  drops of gold
Disporum smithii (Hook.) Piper
  largeflower fairybells
Erythronium californicum Purdy
  California fawnlily
Erythronium citrinum S. Wats.
  cream fawnlily
Erythronium grandiflorum Pursh
  dogtooth lily
Erythronium grandiflorum ssp. chrysandrum Applegate
  yellow avalanchelily
Erythronium grandiflorum ssp. grandiflorum Pursh
  yellow avalanchelily
Erythronium helenae Applegate
  Pacific fawnlily
Erythronium hendersonii S. Wats.
  Henderson's fawnlily
Erythronium howellii S. Wats.
  Howell's fawnlily
Erythronium klamathense Applegate
  Klamath fawnlily
Erythronium multiscapoideum (Kellogg) A. Nels. & Kennedy
  Sierran fawnlily
Erythronium oregonum Applegate
  giant white fawnlily
Erythronium oregonum ssp. leucandrum (Applegate) Applegate
  giant white fawnlily
Erythronium pluriflorum Shevock, Bartel & Allen
  manyflower fawnlily
Erythronium purpurascens S. Wats.
  purple fawnlily
Erythronium pusaterii (Munz & J.T. Howell) Shevock, Bartel & Allen
  Kaweah Lakes fawnlily
Erythronium revolutum Sm.
  mahogany fawnlily
Erythronium tuolumnense Applegate
  Mother Lode troutlily
Fritillaria affinis (Schultes) Sealy
Fritillaria affinis var. affinis (Schultes) Sealy
Fritillaria agrestis Greene
  stinkbells
Fritillaria atropurpurea Nutt.
  spotted missionbells
Fritillaria biflora Lindl.
  chocolatelily
Fritillaria brandegei Eastw.
  greenhorn missionbells
Fritillaria eastwoodiae Macfarlane
  Butte County missionbells
Fritillaria falcata (Jepson) D.E. Beetle
  talus missionbells
Fritillaria glauca Greene
  Siskiyou missionbells
Fritillaria grayana Reichenb. f. & Baker
  Gray's missionbells
Fritillaria liliacea Lindl.
  fragrant missionbells
Fritillaria micrantha Heller
  brown missionbells
Fritillaria ojaiensis A. Davids.
  Ojai missionbells
Fritillaria pinetorum A. Davids.
  pinewoods missionbells
Fritillaria pluriflora Torr. ex Benth.
  adobelily
Fritillaria pudica (Pursh) Spreng.
  yellow missionbells
Fritillaria purdyi Eastw.
  Purdy's missionbells
Fritillaria recurva Benth.
  scarlet missionbells
Fritillaria striata Eastw.
  striped missionbells
Fritillaria viridea Kellogg
  San Benito missionbells
Hastingsia alba (Dur.) S. Wats.
  white rushlily
Hastingsia serpenticola Becking
  Klamath rushlily
Hesperocallis undulata Gray
  desertlily
Hyacinthus orientalis L.
  garden hyacinth
Ipheion uniflorum (Graham) Raf.
  springstar
Kniphofia uvaria (L.) Oken
  redhot poker
Leucocrinum montanum Nutt. ex Gray
  common starlily
Lilium bolanderi S. Wats.
  Bolander's lily
Lilium columbianum hort. ex Baker
  Columbian lily
Lilium humboldtii Roezl & Leichtl. ex Duchartre
  Humboldt's lily
Lilium humboldtii ssp. humboldtii Roezl & Leichtl. ex Duchartre
  Humboldt's lily
Lilium humboldtii ssp. ocellatum (Kellogg) Thorne
  Humboldt's lily
Lilium kelleyanum J.G. Lemmon
  Kelley's lily
Lilium kelloggii Purdy
  Kellogg's lily
Lilium maritimum Kellogg
  coastal lily
Lilium occidentale Purdy
  Eureka lily
Lilium pardalinum Kellogg
  leopard lily
Lilium pardalinum ssp. pardalinum Kellogg
  Pitkin Marsh lily
Lilium pardalinum ssp. vollmeri (Eastw.) Skinner
  Vollmer's lily
Lilium pardalinum ssp. wigginsii (Beane & Vollmer) Skinner, comb. nov. ined.
Lilium parryi S. Wats.
  Parry's lily
Lilium parvum Kellogg
  Sierran tiger lily
Lilium rubescens S. Wats.
  redwood lily
Lilium washingtonianum Kellogg
  Washington lily
Lilium washingtonianum var. purpurascens Stearn
  Cascade lily
Lilium washingtonianum var. washingtonianum Kellogg
  Washington lily
Maianthemum dilatatum (Wood) A. Nels. & J.F. Macbr.
  twoleaf false Solomon's seal
Maianthemum racemosum (L.) Link
  feathery false Solomon's seal
Maianthemum racemosum ssp. amplexicaule (Nutt.) LaFrankie
  western Solomon's seal
Maianthemum stellatum (L.) Link
  starry false Solomon's seal
Muilla clevelandii (S. Wats.) Hoover
  San Diego goldenstar
Muilla coronata Greene
  crowned muilla
Muilla maritima (Torr.) S. Wats.
  sea muilla
Muilla transmontana Greene
  inland muilla
Muscari botryoides (L.) P. Mill.
  common grapehyacinth
Narcissus tazetta L.
  cream narcissus
Narthecium californicum Baker
  California bog asphodel
Nothoscordum gracile (Ait.) Stearn
  fragrant false garlic
Odontostomum hartwegii Torr.
  Hartweg's dollslily
Scoliopus bigelovii Torr.
  California fetid adderstongue
Smilacina .
  = Maianthemum 
Stenanthium occidentale Gray
  western stenanthium
Streptopus amplexifolius (L.) DC.
  claspleaf twistedstalk
Streptopus amplexifolius var. amplexifolius (L.) DC.
  American twistedstalk
Tofieldia glutinosa (Michx.) Pers.
  glutin tofieldia
Tofieldia glutinosa ssp. occidentalis (S. Wats.) C.L. Hitchc.
  western tofieldia
Trillium albidum J.D. Freeman
  giant white wakerobin
Trillium angustipetalum (Torr.) J.D. Freeman
  narrowpetal wakerobin
Trillium chloropetalum (Torr.) T.J. Howell
  giant wakerobin
Trillium chloropetalum var. chloropetalum (Torr.) T.J. Howell
  giant wakerobin
Trillium chloropetalum var. giganteum (Hook. & Arn.) Munz
  giant wakerobin
Trillium kurabayashii J.D. Freeman
  giant purple wakerobin
Trillium ovatum Pursh
  Pacific trillium
Trillium ovatum ssp. oettingeri Munz & Thorne
  Oettinger's trillium
Trillium ovatum ssp. ovatum Pursh
  Pacific trillium
Trillium rivale S. Wats.
  brook wakerobin
Triteleia bridgesii (S. Wats.) Greene
  Bridges' brodiaea
Triteleia clementina Hoover
  San Clemente Island tripletlily
Triteleia crocea (Wood) Greene
  yellow tripletlily
Triteleia crocea var. crocea (Wood) Greene
  yellow tripletlily
Triteleia crocea var. modesta (Hall) Hoover
  yellow tripletlily
Triteleia dudleyi Hoover
  Dudley's tripletlily
Triteleia grandiflora Lindl.
  wild hyacinth
Triteleia grandiflora var. howellii (S. Wats.) Hoover
Triteleia hendersonii Greene
  Henderson's tripletlily
Triteleia hendersonii var. hendersonii Greene
  Henderson's tripletlily
Triteleia hyacinthina (Lindl.) Greene
  hyacinth brodiaea
Triteleia hyacinthina var. hyacinthina (Lindl.) Greene
  fool's onion
Triteleia ixioides (Ait. f.) Greene
  prettyface
Triteleia ixioides ssp. anilina (Greene) Lenz
  prettyface
Triteleia ixioides ssp. cookii (Hoover) Lenz
  Cook's prettyface
Triteleia ixioides ssp. ixioides (Ait. f.) Greene
  golden brodiaea
Triteleia ixioides ssp. scabra (Greene) Lenz
  prettyface
Triteleia ixioides ssp. uniofolia Lenz
  prettyface
Triteleia lilacinum Greene
Triteleia lugens Greene
  Coast Range tripletlily
Triteleia montana Hoover
Triteleia peduncularis Lindl.
  longray tripletlily
Triteleia unifolia (Lenz) Lenz
  oneflower tripletlily
Triteleia versicolor Hoover
  pinto tripletlily
Uvularia amplexifolia L.
  = Streptopus amplexifolius var. amplexifolius
Veratrum californicum Dur.
  California false hellebore
Veratrum californicum var. californicum Dur.
  California false hellebore
Veratrum fimbriatum Gray
  fringed false hellebore
Veratrum insolitum Jepson
  Siskiyou false hellebore
Veratrum viride Ait.
  American false hellebore
Xerophyllum tenax (Pursh) Nutt.
  common beargrass
Zigadenus brevibracteatus (M.E. Jones) Hall
  desert deathcamas
Zigadenus exaltatus Eastw.
  giant deathcamas
Zigadenus fremontii (Torr.) Torr. ex S. Wats.
  Fremont's deathcamas
Zigadenus fremontii var. fremontii (Torr.) Torr. ex S. Wats.
  Fremont's deathcamas
Zigadenus micranthus Eastw.
  smallflower deathcamas
Zigadenus micranthus var. fontanus (Eastw.) O.S. Walsh ex McNeal
Zigadenus paniculatus (Nutt.) S. Wats.
  foothill deathcamas
Zigadenus venenosus S. Wats.
  meadow deathcamas
Zigadenus venenosus var. venenosus S. Wats.
  meadow deathcamas

LIMNANTHACEAE
Floerkea proserpinacoides Willd.
  false mermaidweed
Limnanthes alba Hartw. ex Benth.
  white meadowfoam
Limnanthes alba ssp. alba Hartw. ex Benth.
  white meadowfoam
Limnanthes alba ssp. versicolor (Greene) C.T. Mason
  white meadowfoam
Limnanthes bakeri J.T. Howell
  Baker's meadowfoam
Limnanthes douglasii R. Br.
  Douglas' meadowfoam
Limnanthes douglasii ssp. douglasii R. Br.
  Douglas' meadowfoam
Limnanthes douglasii ssp. nivea (C.T. Mason) C.T. Mason
  Douglas' meadowfoam
Limnanthes douglasii ssp. rosea (Hartw. ex Benth.) C.T. Mason
  Douglas' meadowfoam
Limnanthes douglasii ssp. sulphurea (C.T. Mason) C.T. Mason
  Douglas' meadowfoam
Limnanthes floccosa T.J. Howell
  woolly meadowfoam
Limnanthes floccosa ssp. bellingeriana (M.E. Peck) Arroyo
  woolly meadowfoam
Limnanthes floccosa ssp. californica Arroyo
  California meadowfoam
Limnanthes floccosa ssp. floccosa T.J. Howell
  woolly meadowfoam
Limnanthes gracilis T.J. Howell
  slender meadowfoam
Limnanthes gracilis ssp. gracilis T.J. Howell
  slender meadowfoam
Limnanthes gracilis ssp. parishii (Jepson) Beauchamp
  Parish's slender meadowfoam
Limnanthes montana Jepson
  mountain meadowfoam
Limnanthes striata Jepson
  foothill meadowfoam
Limnanthes vinculans Ornduff
  Sebastopol meadowfoam

LINACEAE
Hesperolinon adenophyllum (Gray) Small
  glandular dwarfflax
Hesperolinon bicarpellatum (H.K. Sharsmith) H.K. Sharsmith
  twocarpel dwarfflax
Hesperolinon breweri (Gray) Small
  Brewer's dwarfflax
Hesperolinon californicum (Benth.) Small
  California dwarfflax
Hesperolinon clevelandii (Greene) Small
  Allen Springs dwarfflax
Hesperolinon congestum (Gray) Small
  Marin dwarfflax
Hesperolinon didymocarpum H.K. Sharsmith
  Lake County dwarfflax
Hesperolinon disjunctum H.K. Sharsmith
  Coast Range dwarfflax
Hesperolinon drymarioides (Curran) Small
  drymary dwarfflax
Hesperolinon micranthum (Gray) Small
  smallflower dwarfflax
Hesperolinon spergulinum (Gray) Small
  slender dwarfflax
Hesperolinon tehamense H.K. Sharsmith
  Paskenta Grade dwarfflax
Linum bienne P. Mill.
  pale flax
Linum californicum Benth.
  = Hesperolinon californicum
Linum clevelandii Greene
  = Hesperolinon clevelandii
Linum congestum Gray
  = Hesperolinon congestum
Linum drymarioides Curran
  = Hesperolinon drymarioides
Linum grandiflorum Desf.
  flowering flax
Linum lewisii Pursh
  prairie flax
Linum lewisii var. alpicola Jepson
  prairie flax
Linum lewisii var. lewisii Pursh
  Lewis' flax
Linum puberulum (Engelm.) Heller
  plains flax
Linum usitatissimum L.
  common flax
Sclerolinon digynum (Gray) Rogers
  digynum flax

LOASACEAE
Eucnide rupestris (Baill.) H.J. Thompson & Ernst
  rock stingbush
Eucnide urens (Parry ex Gray) Parry
  desert stingbush
Mentzelia affinis Greene
  yellowcomet
Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray
  whitestem blazingstar
Mentzelia albicaulis var. albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray
  whitestem blazingstar
Mentzelia congesta Nutt. ex Torr. & Gray
  united blazingstar
Mentzelia congesta var. congesta Nutt. ex Torr. & Gray
  ventana blazingstar
Mentzelia crocea Kellogg
  Sierran blazingstar
Mentzelia desertorum (A. Davids.) H.J. Thompson & Roberts
  desert blazingstar
Mentzelia dispersa S. Wats.
  bushy blazingstar
Mentzelia dispersa var. compacta (A. Nels.) J.F. Macbr.
  Nevada blazingstar
Mentzelia dispersa var. dispersa S. Wats.
  bushy blazingstar
Mentzelia dispersa var. latifolia (Rydb.) J.F. Macbr.
  bushy blazingstar
Mentzelia dispersa var. obtusa Jepson
  Nevada blazingstar
Mentzelia eremophila (Jepson) H.J. Thompson & Roberts
  pinyon blazingstar
Mentzelia gracilenta (Nutt.) Torr. & Gray
  grass blazingstar
Mentzelia hirsutissima S. Wats.
  hairy blazingstar
Mentzelia involucrata S. Wats.
  whitebract blazingstar
Mentzelia involucrata var. involucrata S. Wats.
  whitebract blazingstar
Mentzelia involucrata var. megalantha I.M. Johnston
  whitebract blazingstar
Mentzelia jonesii (Urban & Gilg) H.J. Thompson & Roberts
  Jones' blazingstar
Mentzelia laevicaulis (Dougl. ex Hook.) Torr. & Gray
  smoothstem blazingstar
Mentzelia laevicaulis var. laevicaulis (Dougl. ex Hook.) Torr. & Gray
  smoothstem blazingstar
Mentzelia leucophylla Brandeg.
  Ash Meadows blazingstar
Mentzelia lindleyi Torr. & Gray
  Lindley's blazingstar
Mentzelia micrantha (Hook. & Arn.) Torr. & Gray
  San Luis blazingstar
Mentzelia montana (A. Davids.) A. Davids.
  variegatedbract blazingstar
Mentzelia multiflora (Nutt.) Gray
  manyflowered mentzelia
Mentzelia multiflora var. longiloba (J. Darl.) Kartesz, comb. nov. ined.
Mentzelia multiflora var. multiflora (Nutt.) Gray
  adonis blazingstar
Mentzelia nitens Greene
  shining blazingstar
Mentzelia nitens var. nitens Greene
  shining blazingstar
Mentzelia obscura H.J. Thompson & Roberts
  Pacific blazingstar
Mentzelia oreophila J. Darl.
  Argus blazingstar
Mentzelia pectinata Kellogg
  San Joaquin blazingstar
Mentzelia pterosperma Eastw.
  wingseed blazingstar
Mentzelia reflexa Coville
  reflexed blazingstar
Mentzelia torreyi Gray
  Torrey's blazingstar
Mentzelia tricuspis Gray
  spinyhair blazingstar
Mentzelia tridentata (A. Davids.) H.J. Thompson & Roberts
  threetooth blazingstar
Mentzelia veatchiana Kellogg
  whitestem blazingstar
Petalonyx linearis Greene
  narrowleaf sandpaper plant
Petalonyx nitidus S. Wats.
  shinyleaf sandpaper plant
Petalonyx thurberi Gray
  Thurber's sandpaper plant
Petalonyx thurberi ssp. gilmanii (Munz) Davis & H.J. Thompson
  Death Valley sandpaper plant
Petalonyx thurberi ssp. thurberi Gray
  Thurber's sandpaper plant

LYCOPODIACEAE
Lycopodiella inundata (L.) Holub
  inundated clubmoss
Lycopodium clavatum L.
  running clubmoss
Lycopodium clavatum var. clavatum L.
  running clubmoss

LYTHRACEAE
Ammannia auriculata Willd.
  eared redstem
Ammannia coccinea Rottb.
  valley redstem
Ammannia robusta Heer & Regel
  grand redstem
Lythrum californicum Torr. & Gray
  California loosestrife
Lythrum hyssopifolia L.
  hyssop loosestrife
Lythrum portula (L.) D.A. Webber
  spatulaleaf loosestrife
Lythrum salicaria L.
  purple loosestrife
Lythrum tribracteatum Salzm. ex Spreng.
  threebract loosestrife
Rotala indica (Willd.) Koehne
  Indian toothcup
Rotala ramosior (L.) Koehne
  lowland rotala

MALVACEAE
Abutilon palmeri Gray
  Palmer's Indian mallow
Abutilon parvulum Gray
  dwarf Indian mallow
Abutilon theophrasti Medik.
  velvetleaf
Alcea rosea L.
  hollyhock
Althaea rosea (L.) Cav.
  = Alcea rosea
Anoda cristata (L.) Schlecht.
  crested anoda
Eremalche exilis (Gray) Greene
  white mallow
Eremalche parryi (Greene) Greene
  Parry's mallow
Eremalche parryi ssp. kernensis (C.B. Wolf) Bates
  Kern eremalche
Eremalche rotundifolia (Gray) Greene
  desert fivespot
Herissantia crispa (L.) Briz.
  bladdermallow
Hibiscus denudatus Benth.
  paleface
Hibiscus moscheutos L.
  crimsoneyed rosemallow
Hibiscus moscheutos ssp. lasiocarpos (Cav.) O.J. Blanchard
  crimsoneyed rosemallow
Hibiscus trionum L.
  flower of an hour
Horsfordia alata (S. Wats.) Gray
  pink velvetmallow
Horsfordia newberryi (S. Wats.) Gray
  Newberry's velvetmallow
Iliamna bakeri (Jepson) Wiggins
  Baker's wildhollyhock
Iliamna latibracteata Wiggins
  California wildhollyhock
Lavatera arborea L.
  tree mallow
Lavatera assurgentiflora Kellogg
  malva rosa
Lavatera assurgentiflora ssp. assurgentiflora Kellogg
  malva rosa
Lavatera assurgentiflora ssp. glabra Philbrick
  malva rosa
Lavatera cretica L.
  Cornish mallow
Lavatera trimestris L.
  annual mallow
Malacothamnus abbottii (Eastw.) Kearney
  Abbot's bushmallow
Malacothamnus aboriginum (B.L. Robins.) Greene
  Gray bushmallow
Malacothamnus clementinus (Munz & Johnston) Kearney
  San Clemente Island bushmallow
Malacothamnus davidsonii (B.L. Robins.) Greene
  Davidson's bushmallow
Malacothamnus densiflorus (S. Wats.) Greene
  yellowstem bushmallow
Malacothamnus fasciculatus (Nutt. ex Torr. & Gray) Greene
  Mendocino bushmallow
Malacothamnus fremontii (Torr. ex Gray) Torr. ex Greene
  Fremon's bushmallow
Malacothamnus jonesii (Munz) Kearney
  slender bushmallow
Malacothamnus marrubioides (Dur. & Hilg.) Greene
  pinkflowered bushmallow
Malacothamnus palmeri (S. Wats.) Greene
  Palmer's bushmallow
Malva crispa (L.) L.
  curly mallow
Malva neglecta Wallr.
  common mallow
Malva nicaeensis All.
  bull mallow
Malva parviflora L.
  cheeseweed mallow
Malva sylvestris L.
  high mallow
Malva verticillata L.
  cluster mallow
Malvastrum  Eastw.
  = Malacothamnus 
Malvella leprosa (Ortega) Krapov.
  alkali mallow
Modiola caroliniana (L.) G. Don
  Carolina bristlemallow
Sida hederacea (Dougl. ex Hook.) Torr. ex Gray
  = Malvella leprosa
Sida rhombifolia L.
  cuban jute
Sidalcea calycosa M.E. Jones
  annual checkermallow
Sidalcea calycosa ssp. calycosa M.E. Jones
  annual checkermallow
Sidalcea calycosa ssp. rhizomata (Jepson) Munz
  annual checkermallow
Sidalcea covillei Greene
  Owens Valley sidalcea
Sidalcea diploscypha (Torr. & Gray) Gray
  fringed checkermallow
Sidalcea glaucescens Greene
  waxy checkermallow
Sidalcea hartwegii Gray ex Benth.
  valley checkermallow
Sidalcea hickmanii Greene
  chaparral checkermallow
Sidalcea hickmanii ssp. anomala C.L. Hitchc.
  Cuesta Pass checker
Sidalcea hickmanii ssp. hickmanii Greene
  Hickman's checkermallow
Sidalcea hickmanii ssp. parishii (B.L. Robins.) C.L. Hitchc.
  Parish's checker
Sidalcea hickmanii ssp. viridis C.L. Hitchc.
  chaparral checkermallow
Sidalcea hirsuta Gray ex Benth.
  hairy checkermallow
Sidalcea keckii Wiggins
  Keck's checkermallow
Sidalcea malachroides (Hook. & Arn.) Gray
  mapleleaf checkermallow
Sidalcea malviflora (DC.) Gray ex Benth.
  dwarf checkermallow
Sidalcea malviflora ssp. asprella (Greene) C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. californica (Nutt. ex Torr. & Gray) C.L. Hitchc.
  California checkermallow
Sidalcea malviflora ssp. celata (Jepson) C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. dolosa C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. elegans (Greene) C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. laciniata C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. laciniata var. laciniata C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. laciniata var. sancta C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. malviflora (DC.) Gray ex Benth.
  dwarf checkermallow
Sidalcea malviflora ssp. nana (Jepson) C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. patula C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. purpurea C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. rostrata (Eastw.) Wiggins
  dwarf checkermallow
Sidalcea malviflora ssp. sparsifolia C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. sparsifolia var. hirsuta C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. sparsifolia var. sparsifolia C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. sparsifolia var. stellata C.L. Hitchc.
  dwarf checkermallow
Sidalcea malviflora ssp. sparsifolia var. uliginosa C.L. Hitchc.
  dwarf checkermallow
Sidalcea multifida Greene
  cutleaf checkermallow
Sidalcea neomexicana Gray
  New Mexico checkermallow
Sidalcea neomexicana ssp. thurberi (B.L. Robins. ex Gray) C.L. Hitchc.
  Thurber's checkermallow
Sidalcea oregana (Nutt. ex Torr. & Gray) Gray
  Oregon checkermallow
Sidalcea oregana ssp. eximia (Greene) C.L. Hitchc.
  Oregon checkermallow
Sidalcea oregana ssp. hydrophila (Heller) C.L. Hitchc.
  Oregon checkermallow
Sidalcea oregana ssp. oregana (Nutt. ex Torr. & Gray) Gray
  Oregon checkermallow
Sidalcea oregana ssp. oregana var. maxima (M.E. Peck) C.L. Hitchc.
  Oregon checkermallow
Sidalcea oregana ssp. oregana var. oregana (Nutt. ex Torr. & Gray) Gray
  Oregon checkermallow
Sidalcea oregana ssp. spicata (Regel) C.L. Hitchc.
  Oregon checkermallow
Sidalcea oregana ssp. valida (Greene) C.L. Hitchc.
  Oregon checkermallow
Sidalcea pedata Gray
  mountain checkermallow
Sidalcea ranunculacea Greene
  marsh checkermallow
Sidalcea reptans Greene
  Sierran checkermallow
Sidalcea robusta Heller ex Roush
  Butte County checkermallow
Sidalcea setosa ssp. setosa C.L. Hitchc.
  Edgewood checkermallow
Sidalcea stipularis J.T. Howell & True
  Scadden Flat checkermallow
Sphaeralcea ambigua Gray
  desert globemallow
Sphaeralcea ambigua ssp. ambigua Gray
  apricot globemallow
Sphaeralcea ambigua ssp. monticola Kearney
  desert globemallow
Sphaeralcea ambigua ssp. rosacea (Munz & Johnston) Kearney
  rose globemallow
Sphaeralcea ambigua ssp. rugosa Kearney
  desert globemallow
Sphaeralcea angustifolia (Cav.) G. Don
  copper globemallow
Sphaeralcea coulteri (S. Wats.) Gray
  Coulter's globemallow
Sphaeralcea emoryi Torr. ex Gray
  Emory's globemallow
Sphaeralcea emoryi ssp. emoryi Torr. ex Gray
  Emory's globemallow
Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb.
  gooseberryleaf globemallow
Sphaeralcea grossulariifolia ssp. grossulariifolia (Hook. & Arn.) Rydb.
  gooseberryleaf globemallow
Sphaeralcea munroana (Dougl. ex Lindl.) Spach ex Gray
  Munro's globemallow
Sphaeralcea munroana ssp. munroana (Dougl. ex Lindl.) Spach ex Gray
  Munro's globemallow
Sphaeralcea orcuttii Rose
  Carrizo Creek globemallow
Sphaeralcea parvifolia A. Nels.
  smallflower globemallow
Sphaeralcea rusbyi Gray
  Rusby's globemallow
Sphaeralcea rusbyi ssp. eremicola (Jepson) Kearney
  Rusby's globemallow

MARSILEACEAE
Marsilea oligospora Goodding
  Pacific waterclover
Marsilea vestita Hook. & Grev.
  hairy pepperwort
Marsilea vestita ssp. vestita Hook. & Grev.
  hairy pepperwort
Pilularia americana A. Braun
  American pillwort

MELIACEAE
Melia azedarach L.
  Chinaberrytree

MENYANTHACEAE
Menyanthes trifoliata L.
  common buckbean

MOLLUGINACEAE
Glinus lotoides L.
  lotus sweetjuice
Mollugo cerviana (L.) Ser.
  threadstem carpetweed
Mollugo verticillata L.
  green carpetweed

MONOTROPACEAE
Allotropa virgata Torr. & Gray ex Gray
  sugarstick
Hemitomes congestum Gray
  coneplant
Monotropa hypopithys L.
  pinesap
Monotropa uniflora L.
  Indianpipe
Pityopus californica (Eastw.) Copeland f.
  California pinefoot
Pleuricospora fimbriolata Gray
  fringed pinesap
Pterospora andromedea Nutt.
  woodland pinedrops
Sarcodes sanguinea Torr.
  snowplant

MORACEAE
Ficus carica L.
  commonfig
Ficus palmata Forsk.
  Punjab fig
Morus alba L.
  white mulberry

MYOPORACEAE
Myoporum laetum G. Forst.
  ngaio tree

MYRICACEAE
Myrica californica Cham.
  Pacific bayberry
Myrica hartwegii S. Wats.
  Sierran bayberry

MYRTACEAE
Eucalyptus X mortoniana Kinney (pro sp.)
  Morton eucalyptus
Eucalyptus camaldulensis Dehnhardt
  river redgum
Eucalyptus globulus Labill.
  Tasmanian bluegum
Eucalyptus polyanthemos Schauer
  redbox
Eucalyptus tereticornis Sm.
  forest redgum
Eucalyptus viminalis Labill.
  manna gum
Eugenia apiculata DC.
  shortleaf stopper
Leptospermum laevigata (Soland. ex Gaertn.) F. Muell.
  coastal teatree

NAJADACEAE
Najas gracillima (A. Braun ex Engelm.) Magnus
  slender waternymph
Najas graminea Delile
  ricefield waternymph
Najas guadalupensis (Spreng.) Magnus
  southern waternymph
Najas guadalupensis var. guadalupensis (Spreng.) Magnus
  Guadalupe waternymph
Najas marina L.
  spiny naiad

NELUMBONACEAE
Nelumbo lutea Willd.
  American lotus

NYCTAGINACEAE
Abronia alpina Brandeg.
  alpine sand verbena
Abronia alba Eastw.
  ramshaw sand verbena
Abronia insularis Standl.
  island sand verbena
Abronia latifolia Eschsch.
  coastal sand verbena
Abronia maritima Nutt. ex S. Wats.
  red sand verbena
Abronia minor Standl.
  little sand verbena
Abronia nana S. Wats.
  dwarf sand verbena
Abronia nana var. covillei (Heimerl) Munz
  Coville's dwarf sand verbena
Abronia nana var. nana S. Wats.
  dwarf sand verbena
Abronia neurophylla Standl.
  beach sand verbena
Abronia platyphylla Standl.
  broadleaf sand verbena
Abronia pogonantha Heimerl
  Mojave sand verbena
Abronia turbinata Torr. ex S. Wats.
  transmontane sand verbena
Abronia umbellata Lam.
  pink sand verbena
Abronia umbellata ssp. breviflora (Standl.) Munz
  pink sand verbena
Abronia umbellata ssp. umbellata Lam.
  pink sand verbena
Abronia umbellata ssp. variabilis (Standl.) Munz
  variable pink sand verbena
Abronia villosa S. Wats.
  desert sand verbena
Abronia villosa var. aurita (Abrams) Jepson
  desert sand verbena
Abronia villosa var. villosa S. Wats.
  desert sand verbena
Acleisanthes longiflora Gray
  angel's trumpets
Allionia incarnata L.
  trailing windmills
Anulocaulis annulatus (Coville) Standl.
  valley ringstem
Boerhavia coccinea P. Mill.
  scarlet spiderling
Boerhavia coulteri (Hook. f.) S. Wats.
  Coulter's spiderling
Boerhavia diffusa L.
  red spiderling
Boerhavia intermedia M.E. Jones
  fivewing spiderling
Boerhavia triquetra S. Wats.
  slender spiderling
Boerhavia wrightii Gray
  largebract spiderling
Mirabilis albida (Walt.) Heimerl
  white four o'clock
Mirabilis alipes (S. Wats.) Pilz
  winged four o'clock
Mirabilis bigelovii Gray
  neakstem four o'clock
Mirabilis bigelovii var. bigelovii Gray
  Bigelow's four o'clock
Mirabilis bigelovii var. retrorsa (Heller) Munz
  Bigelow's four o'clock
Mirabilis californica Gray
  California four o'clock
Mirabilis californica var. cedrosensis (Standl.) J.F. Macbr.
  California four o'clock
Mirabilis californica var. californica Gray
  wishbonebush
Mirabilis californica var. cordifolia (Dunkle) Dunkle
  California four o'clock
Mirabilis coccinea (Torr.) Benth. & Hook. f.
  scarlet four o'clock
Mirabilis greenei S. Wats.
  Greene's four o'clock
Mirabilis jalapa L.
  marvel of Peru
Mirabilis linearis (Pursh) Heimerl
  narrowleaf four o'clock
Mirabilis multiflora (Torr.) Gray
  Colorado four o'clock
Mirabilis multiflora var. glandulosa (Standl.) J.F. Macbr.
  Colorado four o'clock
Mirabilis nyctaginea (Michx.) MacM.
  heartleaf four o'clock
Mirabilis pumila (Standl.) Standl.
  dwarf four o'clock
Mirabilis tenuiloba S. Wats.
  broadleaf four o'clock
Oxybaphus 
  = Mirabilis 
Selinocarpus diffusus Gray
  spreading moonpod
Selinocarpus nevadensis (Standl.) Fowler & Turner
  desert moonpod
Tripterocalyx crux-maltae (Kellogg) Standl.
  Lassen sandverbena
Tripterocalyx micranthus (Torr.) Hook.
  smallflower sandverbena

NYMPHAEACEAE
Nuphar lutea (L.) Sm.
  yellow pondlily
Nuphar lutea ssp. polysepala (Engelm.) E.O. Beal
  Rocky Mountain pondlily
Nuphar polysepala Engelm.
  = Nuphar lutea ssp. polysepala

OLEACEAE
Forestiera pubescens Nutt.
  stretchberry
Forestiera pubescens var. pubescens Nutt.
  stretchberry
Fraxinus anomala Torr. ex S. Wats.
  singleleaf ash
Fraxinus anomala var. anomala Torr. ex S. Wats.
  singleleaf ash
Fraxinus dipetala Hook. & Arn.
  two petal ash
Fraxinus latifolia Benth.
  Oregon ash
Fraxinus velutina Torr.
  velvet ash
Ligustrum ovalifolium Hassk.
  California privet
Menodora scabra Gray
  rough menodora
Menodora scabra var. scabra Engelm. ex Gray
  rough menodora
Menodora spinescens Gray
  spiny menodora
Olea europaea L.
  olive

ONAGRACEAE
Boisduvalia 
  = Epilobium 
Camissonia andina (Nutt.) Raven
  sundrops eveningprimrose
Camissonia arenaria (A. Nels.) Raven
  Fortuna Range suncup
Camissonia benitensis Raven
  San Benito suncup
Camissonia bistorta (Nutt. ex Torr. & Gray) Raven
  southern suncup
Camissonia boothii (Dougl. ex Lehm.) Raven
  Booth's eveningprimrose
Camissonia boothii ssp. alyssoides (Hook. & Arn.) Raven
  alyssum eveningprimrose
Camissonia boothii ssp. boothii (Dougl. ex Lehm.) Raven
  Booth's suncup
Camissonia boothii ssp. condensata (Munz) Raven
  shredding suncup
Camissonia boothii ssp. decorticans (Hook. & Arn.) Raven
  shredding suncup
Camissonia boothii ssp. desertorum (Munz) Raven
  desert suncup
Camissonia boothii ssp. intermedia (Munz) Raven
  intermediate suncup
Camissonia brevipes (Gray) Raven
  yellow cups
Camissonia brevipes ssp. arizonica (Raven) Raven
  golden suncup
Camissonia brevipes ssp. brevipes (Gray) Raven
  golden suncup
Camissonia brevipes ssp. pallidula (Munz) Raven
  pallid suncup
Camissonia californica (Nutt. ex Torr. & Gray) Raven
  California suncup
Camissonia campestris (Greene) Raven
  Mojave suncup
Camissonia campestris ssp. campestris (Greene) Raven
  Mojave suncup
Camissonia campestris ssp. obispoensis Raven
  Obispo suncup
Camissonia cardiophylla (Torr.) Raven
  heartleaf suncup
Camissonia cardiophylla ssp. cardiophylla (Torr.) Raven
  heartleaf suncup
Camissonia cardiophylla ssp. robusta (Raven) Raven
  heartleaf suncup
Camissonia chamaenerioides (Gray) Raven
  longcapsule suncup
Camissonia cheiranthifolia (Hornem. ex Spreng.) Raimann
  beach primrose
Camissonia cheiranthifolia ssp. cheiranthifolia (Hornem. ex Spreng.) Raimann
  beach primrose
Camissonia cheiranthifolia ssp. suffruticosa (S. Wats.) Raven
  beach suncup
Camissonia claviformis (Torr. & Frem.) Raven
  browneyes
Camissonia claviformis ssp. aurantiaca (Munz) Raven
  browneyes
Camissonia claviformis ssp. claviformis (Torr. & Frem.) Raven
  browneyes
Camissonia claviformis ssp. cruciformis (Kellogg) Raven
  browneyes
Camissonia claviformis ssp. funerea (Raven) Raven
  browneyes
Camissonia claviformis ssp. integrior (Raven) Raven
  browneyes
Camissonia claviformis ssp. lancifolia (Heller) Raven
  lanceleaf browneyes
Camissonia claviformis ssp. peirsonii (Munz) Raven
  Peirson's browneyes
Camissonia claviformis ssp. yumae (Raven) Raven
  Yuma browneyes
Camissonia confusa Raven
  San Bernardino suncup
Camissonia contorta (Dougl. ex Lehm.) Kearney
  plains eveningprimrose
Camissonia graciliflora (Hook. & Arn.) Raven
  slenderflower suncup
Camissonia guadalupensis (S. Wats.) Raven
  Guadalupe suncup
Camissonia guadalupensis ssp. clementina (Raven) Raven
  Clementine suncup
Camissonia hardhamiae Raven
  Hardham's suncup
Camissonia heterochroma (S. Wats.) Raven
  purple suncup
Camissonia hirtella (Greene) Raven
  Santa Cruz Island suncup
Camissonia ignota (Jepson) Raven
  Jurupa Hills suncup
Camissonia integrifolia Raven
  Kern River suncup
Camissonia intermedia Raven
  intermediate suncup
Camissonia kernensis (Munz) Raven
  Kern County suncup
Camissonia kernensis ssp. gilmanii (Munz) Raven
  Gilman's suncup
Camissonia kernensis ssp. kernensis (Munz) Raven
  Kern County suncup
Camissonia lacustris Raven
  grassland suncup
Camissonia lewisii Raven
  Los Angeles suncup
Camissonia luciae Raven
  Santa Lucia suncup
Camissonia micrantha (Hornem. ex Spreng.) Raven
  miniature suncup
Camissonia minor (A. Nels.) Raven
  small eveningprimrose
Camissonia multijuga (S. Wats.) Raven
  froststem suncup
Camissonia munzii (Raven) Raven
  Death Valley suncup
Camissonia ovata (Nutt. ex Torr. & Gray) Raven
  goldeneggs
Camissonia pallida (Abrams) Raven
  paleyellow suncup
Camissonia pallida ssp. hallii (A. Davids.) Raven
  Hall's suncup
Camissonia pallida ssp. pallida (Abrams) Raven
  paleyellow suncup
Camissonia palmeri (S. Wats.) Raven
  Palmer eveningprimrose
Camissonia parvula (Nutt. ex Torr. & Gray) Raven
  Lewis River suncup
Camissonia pterosperma (S. Wats.) Raven
  wingfruit suncup
Camissonia pubens (S. Wats.) Raven
  hairy suncup
Camissonia pusilla Raven
  little wiry suncup
Camissonia refracta (S. Wats.) Raven
  narrowleaf suncup
Camissonia robusta Raven
  robust suncup
Camissonia scapoidea (Nutt. ex Torr. & Gray) Raven
  barestem eveningprimrose
Camissonia scapoidea ssp. scapoidea (Nutt. ex Torr. & Gray) Raven
  Seorsa eveningprimrose
Camissonia sierrae Raven
  Sierran suncup
Camissonia sierrae ssp. alticola Raven
  Sierran suncup
Camissonia sierrae ssp. sierrae Raven
  Sierran suncup
Camissonia strigulosa (Fisch. & C.A. Mey.) Raven
  sandysoil suncup
Camissonia subacaulis (Pursh) Raven
  diffuseflower eveningprimrose
Camissonia tanacetifolia (Torr. & Gray) Raven
  tansyleaf eveningprimrose
Camissonia tanacetifolia ssp. quadriperforata Raven
  tansyleaf suncup
Camissonia tanacetifolia ssp. tanacetifolia (Torr. & Gray) Raven
  tansyleaf eveningprimrose
Camissonia walkeri (A. Nels.) Raven
  Walker's suncup
Camissonia walkeri ssp. tortilis (Jepson) Raven
  Walker's suncup
Chamaenerion angustifolium (L.) Scop.
  = Epilobium angustifolium ssp. angustifolium
Circaea alpina L.
  small enchanter's nightshade
Circaea alpina ssp. pacifica (Aschers. & Magnus) Raven
  small enchanter's nightshade
Clarkia affinis H.F. & M.E. Lewis
  chaparral fairyfan
Clarkia amoena (Lehm.) A. Nels. & J.F. Macbr.
  farewell to spring
Clarkia amoena ssp. amoena (Lehm.) A. Nels. & J.F. Macbr.
  farewell to spring
Clarkia amoena ssp. huntiana (Jepson) H.F. & M.E. Lewis
  farewell to spring
Clarkia amoena ssp. whitneyi (Gray) H.F. & M.E. Lewis
  Whitney's clarkia
Clarkia arcuata (Kellogg) A. Nels. & J.F. Macbr.
  glandular fairyfan
Clarkia australis E. Small
  southern fairyfan
Clarkia biloba (Dur.) A. Nels. & J.F. Macbr.
  twolobe fairyfan
Clarkia biloba ssp. australis H.F. & M.E. Lewis
  twolobe fairyfan
Clarkia biloba ssp. biloba (Dur.) A. Nels. & J.F. Macbr.
  twolobe fairyfan
Clarkia biloba ssp. brandegeae (Jepson) H.F. & M.E. Lewis
  Brandegee's fairyfan
Clarkia borealis E. Small
  northern fairyfan
Clarkia borealis ssp. arida E. Small
  northern fairyfan
Clarkia borealis ssp. borealis E. Small
  northern fairyfan
Clarkia bottae (Spach) H.F. & M.E. Lewis
  Botta's fairyfan
Clarkia breweri (Gray) Greene
  Brewer's fairyfan
Clarkia concinna (Fisch. & C.A. Mey.) Greene
  redribbons
Clarkia concinna ssp. automixa R.N. Bowman
  redribbons
Clarkia concinna ssp. concinna (Fisch. & C.A. Mey.) Greene
  redribbons
Clarkia concinna ssp. raichei G. Allen, V. Ford & L. Gottlieb
  Raiche's clarkia
Clarkia cylindrica (Jepson) H.F. & M.E. Lewis
  speckled fairyfan
Clarkia cylindrica ssp. clavicarpa W.S. Davis
  speckled fairyfan
Clarkia cylindrica ssp. cylindrica (Jepson) H.F. & M.E. Lewis
  speckled fairyfan
Clarkia davyi (Jepson) H.F. & M.E. Lewis
  Davy's fairyfan
Clarkia delicata (Abrams) A. Nels. & J.F. Macbr.
  Campo fairyfan
Clarkia dudleyana (Abrams) J.F. Macbr.
  Dudley's fairyfan
Clarkia epilobioides (Nutt. ex Torr. & Gray) A. Nels. & J.F. Macbr.
  canyon fairyfan
Clarkia exilis Lewis & Vasek
  Kern River fairyfan
Clarkia franciscana Lewis & Raven
  Presidio fairyfan
Clarkia gracilis (Piper) A. Nels. & J.F. Macbr.
  slender fairyfan
Clarkia gracilis ssp. albicaulis (Jepson) H.F. & M.E. Lewis
  slender fairyfan
Clarkia gracilis ssp. gracilis (Piper) A. Nels. & J.F. Macbr.
  slender fairyfan
Clarkia gracilis ssp. sonomensis (C.L. Hitchc.) H.F. & M.E. Lewis
  Sonoma fairyfan
Clarkia gracilis ssp. tracyi (Jepson) Abdel-Hamee & Snow
  Tracy's fairyfan
Clarkia heterandra (Torr.) Lewis & Raven
  clarkia
Clarkia imbricata H.F. & M.E. Lewis
  Vine Hill fairyfan
Clarkia jolonensis Parnell
  Jolon fairyfan
Clarkia lassenensis (Eastw.) H.F. & M.E. Lewis
  Mt. Lassen fairyfan
Clarkia lewisii Raven & Parnell
  Lewis' fairyfan
Clarkia lingulata H.F. & M.E. Lewis
  Merced fairyfan
Clarkia mildrediae (Heller) H.F. & M.E. Lewis
  Mildred's fairyfan
Clarkia modesta Jepson
  Waltham Creek fairyfan
Clarkia mosquinii E. Small
  Mosquin's fairyfan
Clarkia mosquinii ssp. mosquinii E. Small
  Mosquin's fairyfan
Clarkia prostrata H.F. & M.E. Lewis
  prostrate fairyfan
Clarkia purpurea (W. Curtis) A. Nels. & J.F. Macbr.
  winecup fairyfan
Clarkia purpurea ssp. purpurea (W. Curtis) A. Nels. & J.F. Macbr.
  winecup fairyfan
Clarkia purpurea ssp. quadrivulnera (Dougl. ex Lindl.) H.F. & M.E. Lewis
  winecup fairyfan
Clarkia purpurea ssp. viminea (Dougl. ex Hook.) H.F. & M.E. Lewis
  winecup fairyfan
Clarkia rhomboidea Dougl. ex Hook.
  diamond fairyfan
Clarkia rostrata W.S. Davis
  beaked fairyfan
Clarkia rubicunda (Lindl.) H.F. & M.E. Lewis
  ruby chalice fairyfan
Clarkia similis Lewis & Ernst
  Ramona fairyfan
Clarkia speciosa H.F. & M.E. Lewis
  redspot fairyfan
Clarkia speciosa ssp. immaculata H.F. & M.E. Lewis
  redspot fairyfan
Clarkia speciosa ssp. nitens (H.F. & M.E. Lewis) Lewis & Raven
  clarkia
Clarkia speciosa ssp. polyantha H.F. & M.E. Lewis
  redspot fairyfan
Clarkia speciosa ssp. speciosa H.F. & M.E. Lewis
  redspot fairyfan
Clarkia springvillensis Vasek
  Springville fairyfan
Clarkia stellata Mosquin
  Lake Almanor fairyfan
Clarkia tembloriensis Vasek
  Temblor Range fairyfan
Clarkia tembloriensis ssp. calientensis (Vasek) Holsinger
  Temblor Range fairyfan
Clarkia tembloriensis ssp. tembloriensis Vasek
  Temblor Range fairyfan
Clarkia unguiculata Lindl.
  elegant fairyfan
Clarkia virgata Greene
  Sierran fairyfan
Clarkia williamsonii (Dur. & Hilg.) H.F. & M.E. Lewis
  Fort Miller fairyfan
Clarkia xantiana Gray
  gunsight fairyfan
Epilobium anagallidifolium Lam.
  alpine willowherb
Epilobium angustifolium L.
  fireweed
Epilobium angustifolium ssp. angustifolium L.
  fireweed
Epilobium angustifolium ssp. circumvagum Mosquin
  fireweed
Epilobium brachycarpum K. Presl
  autumn willowweed
Epilobium canum (Greene) Raven
  hummingbird trumpet
Epilobium canum ssp. angustifolium (Keck) Raven
  hummingbird trumpet
Epilobium canum ssp. canum (Greene) Raven
  hummingbird trumpet
Epilobium canum ssp. garrettii (A. Nels.) Raven
  Garrett's firechalice
Epilobium canum ssp. latifolium (Hook.) Raven
  hummingbird trumpet
Epilobium ciliatum Raf.
  hairy willowherb
Epilobium ciliatum ssp. ciliatum Raf.
  coast willowweed
Epilobium ciliatum ssp. glandulosum (Lehm.) Hoch & Raven
  glandular willowweed
Epilobium ciliatum ssp. watsonii (Barbey) Hoch & Raven
  northern willowherb
Epilobium clavatum Trel.
  clubfruit willowherb
Epilobium cleistogamum (Curran) Hoch & Raven
Epilobium densiflorum (Lindl.) Hoch & Raven
Epilobium foliosum (Torr. & Gray) Suksdorf
  California willowherb
Epilobium glaberrimum Barbey
  smooth willowweed
Epilobium glaberrimum ssp. fastigiatum (Nutt.) Hoch & Raven
  smooth willowweed
Epilobium glaberrimum ssp. glaberrimum Barbey
  smooth willowweed
Epilobium halleanum Hausskn.
  glandular willowherb
Epilobium hornemannii Reichenb.
  Hornemann's willowherb
Epilobium hornemannii ssp. hornemannii Reichenb.
  Hornemann's willowherb
Epilobium lactiflorum Hausskn.
  milkflower willowweed
Epilobium latifolium L.
  dwarf fireweed
Epilobium luteum Pursh
  yellow willowherb
Epilobium minutum Lindl. ex Lehm.
  small willowweed
Epilobium nivium Brandeg.
  Snow Mountain willowherb
Epilobium obcordatum Gray
  heart willowweed
Epilobium oreganum Greene
  Grants Pass willowherb
Epilobium oregonense Hausskn.
  slimstem willowweed
Epilobium pallidum (Eastw.) Hoch & Raven
Epilobium pygmaeum (Speg.) Hoch & Raven
Epilobium rigidum Hausskn.
  stiff willowherb
Epilobium septentrionale (Keck) R.N. Bowman & Hoch
  northern willowherb
Epilobium siskiyouense (Munz) Hoch & Raven
  Siskiyou willowherb
Epilobium torreyi (S. Wats.) Hoch & Raven
Fuchsia magellanica Lam.
  hardy fuchsia
Gaura coccinea Nutt. ex Pursh
  scarlet beeblossom
Gaura drummondii (Spach) Torr. & Gray
  Drummond's beeblossom
Gaura mckelveyae (Munz) Raven & Gregory
  Mckelvey's beeblossom
Gaura parviflora Dougl. ex Lehm.
  velvetweed
Gaura sinuata Nutt. ex Ser.
  wavyleaf beeblossom
Gaura villosa Torr.
  woolly beeblossom
Gaura villosa ssp. villosa Torr.
  woolly beeblossom
Gayophytum decipiens Lewis & Szweykowski
  deceptive groundsmoke
Gayophytum diffusum Torr. & Gray
  spreading groundsmoke
Gayophytum diffusum ssp. diffusum Torr. & Gray
  spreading groundsmoke
Gayophytum diffusum ssp. parviflorum Lewis & Szweykowski
  spreading groundsmoke
Gayophytum eriospermum Coville
  Coville's groundsmoke
Gayophytum heterozygum Lewis & Szweykowski
  zigzag groundsmoke
Gayophytum humile Juss.
  dwarf groundsmoke
Gayophytum oligospermum Lewis & Szweykowski
  pinegrove groundsmoke
Gayophytum racemosum Torr. & Gray
  blackfoot groundsmoke
Gayophytum ramosissimum Torr. & Gray
  pinyon groundsmoke
Godetia 
  = Clarkia 
Jussiaea 
  = Ludwigia 
Ludwigia palustris (L.) Ell.
  marsh seedbox
Ludwigia peploides (Kunth) Raven
  floating primrosewillow
Ludwigia peploides ssp. montevidensis (Spreng.) Raven
  floating primrosewillow
Ludwigia peploides ssp. peploides (Kunth) Raven
  floating primrosewillow
Ludwigia repens J.R. Forst.
  creeping primrosewillow
Ludwigia uruguayensis (Camb.) Hara
  Uruguayan primrosewillow
Oenothera abramsii J.F. Macbr.
  = Camissonia pallida ssp. pallida
Oenothera alyssoides Hook. & Arn.
  = Camissonia boothii ssp. alyssoides
Oenothera alyssoides var. villosa S. Wats.
  = Camissonia boothii ssp. alyssoides
Oenothera andina Nutt.
  = Camissonia andina
Oenothera arenaria (A. Nels.) Raven
  = Camissonia arenaria
Oenothera bistorta Nutt. ex Torr. & Gray
  = Camissonia bistorta
Oenothera boothii Dougl. ex Lehm.
  = Camissonia boothii ssp. boothii
Oenothera brevipes Gray
  = Camissonia brevipes ssp. brevipes
Oenothera californica (Nutt. ex Torr. & Gray) Greene
  = Camissonia californica
Oenothera californica (S. Wats.) S. Wats.
  California eveningprimrose
Oenothera campestris Greene
  = Camissonia campestris ssp. campestris
Oenothera cardiophylla Torr.
  = Camissonia cardiophylla ssp. cardiophylla
Oenothera cavernae Munz
  cavedwelling eveningprimrose
Oenothera cespitosa Nutt.
  tufted eveningprimrose
Oenothera cespitosa ssp. crinita (Rydb.) Munz
  tufted eveningprimrose
Oenothera cespitosa ssp. macroglottis (Rydb.) W.L. Wagner
  tufted eveningprimrose
Oenothera cespitosa ssp. marginata (Nutt. ex Hook. & Arn.) Munz
  tufted eveningprimrose
Oenothera chamaenerioides Gray
  = Camissonia chamaenerioides
Oenothera cheiranthifolia Hornem. ex Spreng.
  = Camissonia cheiranthifolia ssp. cheiranthifolia
Oenothera cheradophila Bartlett
  = Oenothera villosa ssp. strigosa
Oenothera claviformis Torr. & Frem.
  = Camissonia claviformis ssp. claviformis
Oenothera contorta Dougl. ex Lehm.
  = Camissonia contorta
Oenothera cruciata (S. Wats.) Munz
  = Camissonia contorta
Oenothera cruciformis Kellogg
  = Camissonia claviformis ssp. cruciformis
Oenothera decorticans (Hook. & Arn.) Greene
  = Camissonia boothii ssp. decorticans
Oenothera delessertiana Steud.
  = Oenothera speciosa
Oenothera deltoides Torr. & Frem.
  birdcage eveningprimrose
Oenothera deltoides ssp. cognata (Jepson) W. Klein
  birdcage eveningprimrose
Oenothera deltoides ssp. deltoides Torr. & Frem.
  triangle eveningprimrose
Oenothera deltoides ssp. howellii (Munz) W. Klein
  Antioch Dunes eveningprimrose
Oenothera deltoides ssp. piperi (Munz) W. Klein
  Piper's eveningprimrose
Oenothera dentata auct. non Cav.
  = Camissonia contorta
Oenothera elata Kunth
  Hooker's eveningprimrose
Oenothera elata ssp. hirsutissima (Gray ex S. Wats.) W. Dietr.
  Hooker's eveningprimrose
Oenothera elata ssp. hookeri (Torr. & Gray) W. Dietr. & W.L. Wagner
  Hooker's eveningprimrose
Oenothera flava (A. Nels.) Garrett
  yellow eveningprimrose
Oenothera glazioviana Micheli
  redsepal eveningprimrose
Oenothera graciliflora Hook. & Arn.
  = Camissonia graciliflora
Oenothera guadalupensis S. Wats. p.p.
  = Camissonia guadalupensis ssp. clementina
Oenothera hallii (A. Davids.) Munz
  = Camissonia pallida ssp. hallii
Oenothera heterantha Nutt.
  = Camissonia subacaulis
Oenothera heterochroma S. Wats.
  = Camissonia heterochroma
Oenothera hirtella Greene
  = Camissonia hirtella
Oenothera hookeri Torr. & Gray
  = Oenothera elata ssp. hookeri
Oenothera ignota (Jepson) Munz
  = Camissonia ignota
Oenothera kernensis Munz
  = Camissonia kernensis ssp. kernensis
Oenothera laciniata Hill
  cutleaf eveningprimrose
Oenothera leptocarpa Greene
  = Camissonia californica
Oenothera longissima Rydb.
  longstem eveningprimrose
Oenothera micrantha Hornem. ex Spreng.
  = Camissonia micrantha
Oenothera minor (A. Nels.) Munz
  = Camissonia minor
Oenothera multijuga S. Wats.
  = Camissonia multijuga
Oenothera munzii Raven
  = Camissonia munzii
Oenothera ovata Nutt. ex Torr. & Gray
  = Camissonia ovata
Oenothera pallidula (Munz) Munz
  = Camissonia brevipes ssp. pallidula
Oenothera palmeri S. Wats.
  = Camissonia palmeri
Oenothera parvula Nutt. ex Torr. & Gray
  = Camissonia parvula
Oenothera primiveris Gray
  desert eveningprimrose
Oenothera primiveris ssp. bufonis (M.E. Jones) Munz
  desert eveningprimrose
Oenothera primiveris ssp. caulescens (Munz) Munz
  = Oenothera primiveris ssp. primiveris
Oenothera primiveris ssp. primiveris Gray
  desert eveningprimrose
Oenothera pterosperma S. Wats.
  = Camissonia pterosperma
Oenothera pubens (S. Wats.) Munz
  = Camissonia pubens
Oenothera refracta S. Wats.
  = Camissonia refracta
Oenothera rosea L'Her. ex Ait.
  rose eveningprimrose
Oenothera scapoidea Nutt. ex Torr. & Gray
  = Camissonia scapoidea ssp. scapoidea
Oenothera speciosa Nutt.
  pinkladies
Oenothera stricta Ledeb. ex Link
  Chilean eveningprimrose
Oenothera strigulosa (Fisch. & C.A. Mey.) Torr. & Gray
  = Camissonia strigulosa
Oenothera subacaulis (Pursh) Garrett
  = Camissonia subacaulis
Oenothera tanacetifolia Torr. & Gray
  = Camissonia tanacetifolia ssp. tanacetifolia
Oenothera villosa Thunb.
  hairy eveningprimrose
Oenothera villosa ssp. strigosa (Rydb.) W. Dietr. & Raven
  hairy eveningprimrose
Oenothera wolfii (Munz) Raven, W. Dietr. & Stubbe
  Wolf's eveningprimrose
Oenothera xylocarpa Coville
  woodyfruit eveningprimrose
Zauschneria californica K. Presl
  = Epilobium canum ssp. angustifolium
Zauschneria cana Greene
  = Epilobium canum ssp. canum
Zauschneria garrettii A. Nels.
  = Epilobium canum ssp. garrettii
Zauschneria latifolia (Hook.) Greene
  = Epilobium canum ssp. latifolium
Zauschneria septentrionalis Keck
  = Epilobium septentrionale

OPHIOGLOSSACEAE
Botrychium ascendens W.H. Wagner
  trianglelobe moonwort
Botrychium crenulatum W.H. Wagner
  scalloped moonwort
Botrychium lanceolatum (Gmel.) Angstr.
  lanceleaf grapefern
Botrychium lanceolatum var. lanceolatum (Gmel.) Angstr.
  lanceleaf grapefern
Botrychium lunaria (L.) Sw.
  common moonwort
Botrychium minganense Victorin
  Mingan moonwort
Botrychium montanum W.H. Wagner
  mountain moonwort
Botrychium multifidum (Gmel.) Trev.
  leathery grapefern
Botrychium pumicola Coville ex Underwood
  Crater Lake grapefern
Botrychium simplex E. Hitchc.
  little grapefern
Botrychium simplex var. compositum (Lasch) Milde
  little grapefern
Botrychium simplex var. simplex E. Hitchc.
  little grapefern
Botrychium virginianum (L.) Sw.
  rattlesnake fern
Ophioglossum californicum Prantl
  California adderstongue
Ophioglossum pusillum Raf.
  northern adderstongue

ORCHIDACEAE
Calypso bulbosa (L.) Oakes
  fairyslipper orchid
Calypso bulbosa var. occidentalis (Holz.) Boivin
  fairyslipper orchid
Cephalanthera austiniae (Gray) Heller
  phantom orchid
Corallorrhiza maculata (Raf.) Raf.
  summer coralroot
Corallorrhiza mertensiana Bong.
  Pacific coralroot
Corallorrhiza striata Lindl.
  hooded coralroot
Corallorrhiza striata var. striata Lindl.
  hooded coralroot
Corallorrhiza striata var. vreelandii (Rydb.) L.O. Williams
  Vreeland's coralroot
Corallorrhiza trifida Chatelain
  yellow coralroot
Cypripedium californicum Gray
  California lady's slipper
Cypripedium fasciculatum Kellogg ex S. Wats.
  clustered lady's slipper
Cypripedium montanum Dougl. ex Lindl.
  mountain lady's slipper
Epipactis gigantea Dougl. ex Hook.
  giant helleborine
Epipactis helleborine (L.) Crantz (?)
  helleborine
Goodyera oblongifolia Raf.
  western rattlesnake plantain
Habenaria .
  = Platanthera 
Habenaria unalascensis (Spreng.) S. Wats.
  = Piperia unalascensis
Limnorchis 
  = Platanthera 
Listera caurina Piper
  northwestern twayblade
Listera convallarioides (Sw.) Nutt. ex Ell.
  broadlipped twayblade
Listera cordata (L.) R. Br. ex Ait. f.
  heartleaf twayblade
Listera cordata var. cordata (L.) R. Br. ex Ait. f.
  heartleaf twayblade
Listera cordata var. nephrophylla (Rydb.) Hulten
  heartleaf twayblade
Malaxis brachypoda (Gray) Fern.
  white addersmouth orchid
Piperia candida Morgan & Ackerman
  rein orchid
Piperia elegans (Lindl.) Rydb.
  hillside bogorchid
Piperia elongata Rydb.
  denseflower rein orchid
Piperia elongata ssp. elongata Rydb.
  denseflower rein orchid
Piperia elongata ssp. michaelii (Greene) Ackerman
  Michael's rein orchid
Piperia unalascensis (Spreng.) Rydb.
  Alaska rein orchid
Piperia yadonii Morgan & Ackerman
  Yadon's rein orchid
Platanthera dilatata (Pursh) Lindl. ex Beck
  boreal bog orchid
Platanthera dilatata var. dilatata (Pursh) Lindl. ex Beck
  scentbottle
Platanthera hyperborea (L.) Lindl.
  northern green orchid
Platanthera hyperborea var. gracilis (Lindl.) Luer
  northern green orchid
Platanthera hyperborea var. hyperborea (L.) Lindl.
  northern green orchid
Platanthera leucostachys Lindl.
  bog orchid
Platanthera sparsiflora (S. Wats.) Schlechter
  canyon bog orchid
Platanthera sparsiflora var. sparsiflora (S. Wats.) Schlechter
  canyon bog orchid
Platanthera stricta Lindl.
  Modoc bog orchid
Spiranthes porrifolia Lindl.
  creamy ladiestresses
Spiranthes romanzoffiana Cham.
  hooded ladiestresses

OROBANCHACEAE
Boschniakia hookeri Walp.
  Vancouver groundcone
Boschniakia strobilacea Gray
  California groundcone
Orobanche bulbosa (Gray) G. Beck
  chaparral broomrape
Orobanche californica Cham. & Schlecht.
  California broomrape
Orobanche californica ssp. condensa Heckard
  California broomrape
Orobanche californica ssp. californica Cham. & Schlecht.
  California broomrape
Orobanche californica ssp. feudgei (Munz) Heckard
  California broomrape
Orobanche californica ssp. grandis Heckard
  California broomrape
Orobanche californica ssp. grayana (G. Beck) Heckard
  Gray's broomrape
Orobanche californica ssp. jepsonii (Munz) Heckard
  Jepson's broomrape
Orobanche cooperi (Gray) Heller
  desert broomrape
Orobanche corymbosa (Rydb.) Ferris
  flattop broomrape
Orobanche cooperi ssp. cooperi (Gray) Heller
  Cooper's broomrape
Orobanche corymbosa ssp. corymbosa (Rydb.) Ferris
  flattop broomrape
Orobanche cooperi ssp. latiloba (Munz) Collins, comb. nov. ined.
  desert broomrape
Orobanche fasciculata Nutt.
  clustered broomrape
Orobanche ludoviciana Nutt.
  Louisiana broomrape
Orobanche ludoviciana ssp. ludoviciana Nutt.
  sand broomrape
Orobanche parishii (Jepson) Heckard
  Parish's broomrape
Orobanche parishii ssp. brachyloba Heckard
  Parish's broomrape
Orobanche parishii ssp. parishii (Jepson) Heckard
  Parish's broomrape
Orobanche pinorum Geyer ex Hook.
  conifer broomrape
Orobanche ramosa L.
  hemp broomrape
Orobanche uniflora L.
  oneflowered broomrape
Orobanche valida Jepson
  Rock Creek broomrape
Orobanche vallicola (Jepson) Heckard
  hillside broomrape
Orobanche valida ssp. howellii Heckard & Collins
  Howell's broomrape
Orobanche valida ssp. valida Jepson
  Rock Creek broomrape

OXALIDACEAE
Oxalis albicans Kunth
  radishroot woodsorrel
Oxalis albicans ssp. albicans Kunth
  radishroot woodsorrel
Oxalis albicans ssp. californica (Abrams) Eiten
  California woodsorrel
Oxalis albicans ssp. pilosa (Nutt.) Eiten
  radishroot woodsorrel
Oxalis articulata Savigny
  jointed woodsorrel
Oxalis corniculata L.
  creeping woodsorrel
Oxalis debilis Kunth
  pink woodsorrel
Oxalis debilis var. corymbosa (DC.) Lourteig
  pink woodsorrel
Oxalis hirta L.
  tropical woodsorrel
Oxalis incarnata L.
  crimson woodsorrel
Oxalis oregana Nutt.
  Oregon oxalis
Oxalis pes-caprae L.
  African woodsorrel
Oxalis purpurea L.
  purple woodsorrel
Oxalis radicosa A. Rich.
  dwarf woodsorrel
Oxalis rubra St.-Hil.
Oxalis suksdorfii Trel.
  Suksdorf woodsorrel
Oxalis trilliifolia Hook.
  threeleaf woodsorrel

PAEONIACEAE
Paeonia brownii Dougl. ex Hook.
  Brown's peony
Paeonia californica Nutt.
  California peony

PAPAVERACEAE
Arctomecon californica Torr. & Frem.
  California bearpoppy
Arctomecon merriamii Coville
  desert bearpoppy
Argemone corymbosa Greene
  Mojave pricklypoppy
Argemone corymbosa ssp. corymbosa Greene
  Mojave pricklypoppy
Argemone hispida Gray
  rough pricklypoppy
Argemone munita Dur. & Hilg.
  flatbud pricklypoppy
Argemone munita ssp. argentea G.B. Ownbey
  flatbud pricklypoppy
Argemone munita ssp. munita Dur. & Hilg.
  flatbud pricklypoppy
Argemone munita ssp. robusta G.B. Ownbey
  flatbud pricklypoppy
Argemone munita ssp. rotundata (Rydb.) G.B. Ownbey
  flatbud pricklypoppy
Canbya candida Parry ex Gray
  white pygmypoppy
Dendromecon harfordii Kellogg
  Harford's tree poppy
Dendromecon rigida Benth.
  tree poppy
Dendromecon rigida ssp. rhamnoides (Greene) Thorne
  tree poppy
Dendromecon rigida ssp. rigida Benth.
  tree poppy
Eschscholzia caespitosa Benth.
  tufted poppy
Eschscholzia californica Cham.
  California poppy
Eschscholzia californica ssp. californica Cham.
  California poppy
Eschscholzia glyptosperma Greene
  desert goldenpoppy
Eschscholzia hypecoides Benth.
  San Benito goldenpoppy
Eschscholzia lemmonii Greene
  Lemmon's goldenpoppy
Eschscholzia lemmonii ssp. kernensis (Munz) C. Clark
  Kern goldenpoppy
Eschscholzia lemmonii ssp. lemmonii Greene
  Lemmon's goldenpoppy
Eschscholzia lobbii Greene
  fryingpans
Eschscholzia minutiflora S. Wats.
  pygmy goldenpoppy
Eschscholzia minutiflora ssp. covillei (Greene) C. Clark
  Coville's goldenpoppy
Eschscholzia minutiflora ssp. minutiflora S. Wats.
  smallflower goldenpoppy
Eschscholzia parishii Greene
  Parish's goldenpoppy
Eschscholzia procera Greene
  Kernville goldenpoppy
Eschscholzia ramosa Greene
  Channel Island goldenpoppy
Eschscholzia rhombipetala Greene
  diamondpetal goldenpoppy
Glaucium flavum Crantz
  yellow hornpoppy
Hunnemannia fumariifolia Sweet
  Mexican tulip poppy
Meconella californica Torr. & Frem.
  California fairypoppy
Meconella denticulata Greene
  smallflower fairypoppy
Meconella oregana Nutt.
  white fairypoppy
Papaver argemone L.
  long pricklyhead poppy
Papaver californicum Gray
  western poppy
Papaver dubium L.
  blindeyes
Papaver hybridum L.
  round pricklyhead poppy
Papaver rhoeas L.
  corn poppy
Papaver somniferum L.
  opium poppy
Platystemon californicus Benth.
  California creamcups
Platystemon californicus var. californicus Benth.
  California creamcups
Platystigma linearis Benth.
  narrowleaf queenpoppy
Romneya coulteri Harvey
  Coulter's Matilija poppy
Romneya trichocalyx Eastw.
  bristly Matilija poppy
Stylomecon heterophylla (Benth.) G. Taylor
  windpoppy

PASSIFLORACEAE
Passiflora caerulea L.
  bluecrown passionflower
Passiflora manicata (Juss.) Pers.
  red passionflower
Passiflora mollissima (Kunth) Bailey
  banana passionflower

PEDALIACEAE
Ibicella lutea (Lindl.) Van Eselt.
  yellow unicornplant
Martynia .
  = Proboscidea 
Proboscidea althaeifolia (Benth.) Dcne.
  devilshorn
Proboscidea louisianica (P. Mill.) Thellung
  common devilsclaw
Proboscidea louisianica ssp. louisianica (P. Mill.) Thellung
  Louisiana ram's horn
Proboscidea lutea (Lindl.) Stapf.
  = Ibicella lutea
Proboscidea parviflora (Woot.) Woot. & Standl.
  doubleclaw

PHYTOLACCACEAE
Phytolacca americana L.
  American pokeweed
Phytolacca heteropetala H. Walt.
  Mexican pokeweed
Phytolacca octandra L.
  red inkplant

PINACEAE
Abies amabilis (Dougl. ex Loud.) Dougl. ex Forbes
  Pacific silver fir
Abies bracteata (D. Don) D. Don ex Poit.
  bristlecone fir
Abies concolor (Gord. & Glend.) Lindl. ex Hildebr.
  white fir
Abies concolor var. lowiana (Gord. & Glend.) Lemmon
  white fir
Abies grandis (Dougl. ex D. Don) Lindl.
  grand fir
Abies lasiocarpa (Hook.) Nutt.
  subalpine fir
Abies lasiocarpa var. lasiocarpa (Hook.) Nutt.
  subalpine fir
Abies magnifica A. Murr.
  California red fir
Abies procera Rehd.
  noble fir
Abies X shastensis (Lemmon) Lemmon
  Shasta red fir
Pinus albicaulis Engelm.
  whitebark pine
Pinus attenuata Lemmon
  knobcone pine
Pinus X attenuradiata Stockwell & Righter
  pine
Pinus balfouriana Grev. & Balf.
  foxtail pine
Pinus balfouriana ssp. austrina R.J. & J.D. Mastrogiuseppe
  foxtail pine
Pinus balfouriana ssp. balfouriana Grev. & Balf.
  foxtail pine
Picea breweriana S. Wats.
  Brewer's spruce
Pinus contorta Dougl. ex Loud.
  lodgepole pine
Pinus coulteri D. Don
  Coulter's pine
Pinus contorta var. bolanderi (Parl.) Vasey
  Bolander's pine
Pinus contorta var. contorta Dougl. ex Loud.
  lodgepole pine
Pinus contorta var. murrayana (Grev. & Balf.) Engelm.
  Murray lodgepole pine
Pinus edulis Engelm.
  twoneedle pinyon
Pinus edulis var. edulis Engelm.
  twoneedle pinyon
Picea engelmannii Parry ex Engelm.
  Engelmann's spruce
Pinus flexilis James
  limber pine
Pinus jeffreyi Grev. & Balf.
  Jeffrey pine
Pinus lambertiana Dougl.
  sugar pine
Pinus longaeva D.K. Bailey
  Great Basin bristlecone pine
Pinus monophylla Torr. & Frem.
  singleleaf pinyon
Pinus monticola Dougl. ex D. Don
  western white pine
Pinus muricata D. Don
  Bishop pine
Pinus muricata var. muricata D. Don
  Bishop pine
Pinus ponderosa P.& C. Lawson
  ponderosa pine
Pinus ponderosa var. ponderosa P.& C. Lawson
  ponderosa pine
Pinus quadrifolia Parl. ex Sudworth
  Parry pinyon
Pinus radiata D. Don
  Monterey pine
Pinus sabiniana Dougl. ex Dougl.
  California foothill pine
Picea sitchensis (Bong.) Carr.
  Sitka spruce
Pinus torreyana Parry ex Carr.
  Torrey pine
Pinus torreyana var. insularis (Haller) Siba
Pinus torreyana ssp. torreyana Parry ex Carr.
  Torrey pine
Pinus washoensis Mason & Stockwell
  Washoe pine
Pseudotsuga macrocarpa (Vasey) Mayr
  bigcone Douglas fir
Pseudotsuga menziesii (Mirbel) Franco
  Douglas fir
Pseudotsuga menziesii var. menziesii (Mirbel) Franco
  Douglas fir
Tsuga heterophylla (Raf.) Sarg.
  western hemlock
Tsuga mertensiana (Bong.) Carr.
  mountain hemlock

PITTOSPORACEAE
Pittosporum tobira (Thunb.) Ait. f.
  Japanese cheesewood
Pittosporum undulatum Vent.
  Australian cheesewood
Sollya heterophylla Lindl.
  bluebell creeper

PLANTAGINACEAE
Plantago aristata Michx.
  largebracted plantain
Plantago australis Lam.
  Mexican plantain
Plantago australis ssp. hirtella (Kunth) Rahn
  Mexican plantain
Plantago bigelovii Gray
  annual coastal plantain
Plantago bigelovii ssp. bigelovii Gray
  Bigelow's plantain
Plantago bigelovii ssp. californica (Greene) Bassett
  California plantain
Plantago coronopus L.
  buckhorn plantain
Plantago elongata Pursh
  longleaf plantain
Plantago elongata ssp. elongata Pursh
  prairie plantain
Plantago elongata ssp. pentasperma Bassett
  prairie plantain
Plantago erecta Morris
  dwarf plantain
Plantago eriopoda Torr.
  redwool plantain
Plantago firma Kunze ex Walp.
  Chilean plantain
Plantago heterophylla Nutt.
  slender plantain
Plantago lanceolata L.
  narrowleaf plantain
Plantago major L.
  common plantain
Plantago major var. intermedia (DC.) Pilger
  intermediate plantain
Plantago major var. major L.
  common plantain
Plantago major var. pilgeri Domin
  Pilger's plantain
Plantago maritima L.
  goose tongue
Plantago maritima var. californica (Fern.) Pilger
  California goose tongue
Plantago maritima var. juncoides (Lam.) Gray
  goose tongue
Plantago ovata Forsk.
  desert Indianwheat
Plantago patagonica Jacq.
  woolly plantain
Plantago psyllium L.
  whorled plantain
Plantago pusilla Nutt.
  dwarf plantain
Plantago rhodosperma Dcne.
  redseed plantain
Plantago virginica L.
  Virginia plantain

PLATANACEAE
Platanus racemosa Nutt.
  California sycamore

PLUMBAGINACEAE
Armeria maritima (P. Mill.) Willd.
  thrift seapink
Armeria maritima ssp. californica (Boiss.) Porsild
  California seapink
Limonium californicum (Boiss.) Heller
  California sealavender
Limonium perezii (Stapf) F.T. Hubbard
  Perez's sealavender
Limonium reniforme (Girard) Linchevskii
  kidneyleaf sealavender
Limonium sinuatum (L.) P. Mill.
  wavyleaf sealavender

POLEMONIACEAE
Allophyllum divaricatum (Nutt.) A.& V. Grant
  purple false gilyflower
Allophyllum gilioides (Benth.) A.& V. Grant
  dense false gilyflower
Allophyllum gilioides ssp. gilioides (Benth.) A.& V. Grant
  dense false gilyflower
Allophyllum gilioides ssp. violaceum (Heller) Day
  dense false gilyflower
Allophyllum glutinosum (Benth.) A.& V. Grant
  sticky false gilyflower
Allophyllum integrifolium (Brand) A.& V. Grant
  white false gilyflower
Collomia debilis (S. Wats.) Greene
  alpine mountaintrumpet
Collomia diversifolia Greene
  serpentine mountaintrumpet
Collomia grandiflora Dougl. ex Lindl.
  largeflower mountaintrumpet
Collomia heterophylla Dougl. ex Hook.
  variableleaf mountaintrumpet
Collomia larsenii Gray
Collomia linearis Nutt.
  narrowleaf mountaintrumpet
Collomia rawsoniana Greene
  flaming mountaintrumpet
Collomia tinctoria Kellogg
  yellowstaining mountaintrumpet
Collomia tracyi Mason
  Tracy's mountaintrumpet
Eriastrum abramsii (Elmer) Mason
  Abrams' woolstar
Eriastrum brandegeae Mason
  Brandegee's woolstar
Eriastrum densifolium (Benth.) Mason
  giant woolstar
Eriastrum densifolium ssp. austromontanum (Craig) Mason
  giant woolstar
Eriastrum densifolium ssp. densifolium (Benth.) Mason
  giant woolstar
Eriastrum densifolium ssp. elongatum (Benth.) Mason
  giant woolstar
Eriastrum densifolium ssp. mohavense (Craig) Mason
  Mojave woolstar
Eriastrum densifolium ssp. sanctorum (Milliken) Mason
  giant woolstar
Eriastrum diffusum (Gray) Mason
  miniature woolstar
Eriastrum eremicum (Jepson) Mason
  desert woolstar
Eriastrum eremicum ssp. eremicum (Jepson) Mason
  desert woolstar
Eriastrum filifolium (Nutt.) Woot. & Standl.
  lavender woolstar
Eriastrum hooveri (Jepson) Mason
  Hoover's woolstar
Eriastrum luteum (Benth.) Mason
  yellow woolstar
Eriastrum pluriflorum (Heller) Mason
  Tehachapi woolstar
Eriastrum pluriflorum ssp. pluriflorum (Heller) Mason
  Tehachapi woolstar
Eriastrum pluriflorum ssp. sherman-hoytae (Craig) Mason
  Sherman Hoyt woolstar
Eriastrum sapphirinum (Eastw.) Mason
  sapphire woolstar
Eriastrum sapphirinum ssp. dasyanthum (Brand) Mason
  sapphire woolstar
Eriastrum sapphirinum ssp. sapphirinum (Eastw.) Mason
  sapphire woolstar
Eriastrum sparsiflorum (Eastw.) Mason
  Great Basin woolstar
Eriastrum sparsiflorum ssp. harwoodii (Craig) H.K. Harrison
  Harwood's woolstar
Eriastrum sparsiflorum ssp. sparsiflorum (Eastw.) Mason
  Great Basin woolstar
Eriastrum virgatum (Benth.) Mason
  wand woolstar
Eriastrum wilcoxii (A. Nels.) Mason
  Wilcox's woolstar
Gilia achilleifolia Benth.
  California gilia
Gilia achilleifolia ssp. achilleifolia Benth.
  California gilia
Gilia achilleifolia ssp. multicaulis (Benth.) V.& A. Grant
  California gilia
Gilia aliquanta A.& V. Grant
  puffcalyx gilia
Gilia aliquanta ssp. aliquanta A.& V. Grant
  puffcalyx gilia
Gilia aliquanta ssp. breviloba A.& V. Grant
  puffcalyx gilia
Gilia angelensis V. Grant
  chaparral gilia
Gilia australis (Mason & A. Grant) V.& A. Grant
  southern gilia
Gilia austrooccidentalis (A.& V. Grant) A.& V. Grant
  southwestern gilia
Gilia brecciarum M.E. Jones
  Nevada gilia
Gilia brecciarum ssp. brecciarum M.E. Jones
  Nevada gilia
Gilia brecciarum ssp. jacens (A.& V. Grant) Day, comb. nov. ined.
  Nevada gilia
Gilia brecciarum ssp. neglecta A.& V. Grant
  Nevada gilia
Gilia campanulata Gray
  bellshape gilia
Gilia cana (M.E. Jones) Heller
  showy gilia
Gilia cana ssp. bernardina A.& V. Grant
  showy gilia
Gilia cana ssp. cana (M.E. Jones) Heller
  showy gilia
Gilia cana ssp. speciformis A.& V. Grant
  showy gilia
Gilia cana ssp. speciosa (Jepson) A.& V. Grant
  showy gilia
Gilia cana ssp. triceps (Brand) A.& V. Grant
  showy gilia
Gilia capillaris Kellogg
  miniature gilia
Gilia capitata Sims
  bluehead gilia
Gilia capitata ssp. abrotanifolia (Nutt. ex Greene) V. Grant
  bluehead gilia
Gilia capitata ssp. capitata Sims
  bluehead gilia
Gilia capitata ssp. chamissonis (Greene) V. Grant
  bluehead gilia
Gilia capitata ssp. mediomontana V. Grant
  foothill gilia
Gilia capitata ssp. pacifica V. Grant
  Pacific gilia
Gilia capitata ssp. pedemontana V. Grant
  bluehead gilia
Gilia capitata ssp. staminea (Greene) V. Grant
  bluehead gilia
Gilia capitata ssp. tomentosa (Eastw. ex Brand) V. Grant
  bluehead gilia
Gilia caruifolia Abrams
  carawayleaf gilia
Gilia clivorum (Jepson) V. Grant
  purplespot gilia
Gilia clokeyi Mason
  Clokey's gilia
Gilia diegensis (Munz) A.& V. Grant
  coastal gilia
Gilia filiformis Parry ex Gray
  yellow gilia
Gilia hutchinsifolia Rydb.
  desert pale gilia
Gilia inconspicua (Sm.) Sweet
  shy gilia
Gilia interior (Mason & A. Grant) A.& V. Grant
  inland gilia
Gilia inyoensis I.M. Johnston
  Inyo gilia
Gilia latiflora (Gray) Gray
  hollyleaf gilia
Gilia latiflora ssp. cuyamensis A.& V. Grant
  hollyleaf gilia
Gilia latiflora ssp. davyi (Milliken) A.& V. Grant
  hollyleaf gilia
Gilia latiflora ssp. elongata A.& V. Grant
  hollyleaf gilia
Gilia latiflora ssp. latiflora (Gray) Gray
  hollyleaf gilia
Gilia latifolia S. Wats.
  broadleaf gilia
Gilia leptalea (Gray) Greene
  Bridges' gilia
Gilia leptalea ssp. bicolor Mason & A. Grant
  Bridges' gilia
Gilia leptalea ssp. leptalea (Gray) Greene
  Bridges' gilia
Gilia leptantha Parish
  fineflower gilia
Gilia leptantha ssp. leptantha Parish
  fineflower gilia
Gilia leptantha ssp. pinetorum A.& V. Grant
  fineflower gilia
Gilia leptantha ssp. purpusii (Milliken) A.& V. Grant
  fineflower gilia
Gilia leptantha ssp. transversa A.& V. Grant
  fineflower gilia
Gilia leptomeria Gray
  sand gilia
Gilia maculata Parish
  San Bernardino Mountain gilia
Gilia malior Day & V. Grant
  scrub gilia
Gilia micromeria Gray
  dainty gilia
Gilia millefoliata Fisch. & C.A. Mey.
  manyleaf gilia
Gilia minor A.& V. Grant
  little gilia
Gilia modocensis Eastw.
  Modoc gilia
Gilia nevinii Gray
  Nevin's gilia
Gilia ochroleuca M.E. Jones
  volcanic gilia
Gilia ochroleuca ssp. bizonata A.& V. Grant
  volcanic gilia
Gilia ochroleuca ssp. exilis (Gray) A.& V. Grant
  volcanic gilia
Gilia ochroleuca ssp. ochroleuca M.E. Jones
  volcanic gilia
Gilia ochroleuca ssp. vivida (A.& V. Grant) A.& V. Grant
  volcanic gilia
Gilia ophthalmoides Brand
  eyed gilia
Gilia ripleyi Barneby
  Ripley's gilia
Gilia salticola Eastw.
  salt gilia
Gilia scopulorum M.E. Jones
  rock gilia
Gilia sinistra M.E. Jones
  Alva Day's gilia
Gilia sinistra ssp. pinnatisecta (Mason & A. Grant) Day, comb. nov. ined.
  Alva Day's gilia
Gilia sinuata Dougl. ex Benth.
  rosy gilia
Gilia splendens Dougl. ex Mason & A. Grant
  grand gilia
Gilia splendens ssp. grantii (Brand) V.& A. Grant
  Grant's gilia
Gilia splendens ssp. splendens Dougl. ex Mason & A. Grant
  grand gilia
Gilia stellata Heller
  star gilia
Gilia tenuiflora Benth.
  greater yellowthroat gilia
Gilia tenuiflora ssp. amplifaucalis A.& V. Grant
  greater yellowthroat gilia
Gilia tenuiflora ssp. arenaria (Benth.) A.& V. Grant
  greater yellowthroat gilia
Gilia tenuiflora ssp. hoffmannii (Eastw.) A.& V. Grant
  Hoffman's gilia
Gilia tenuiflora ssp. tenuiflora Benth.
  greater yellowthroat gilia
Gilia transmontana (Mason & A. Grant) A.& V. Grant
  transmontane gilia
Gilia tricolor Benth.
  bird's eyes
Gilia tricolor ssp. diffusa (Congd.) Mason & A. Grant
  bird's eyes
Gilia tricolor ssp. tricolor Benth.
  bird's eyes
Gymnosteris parvula Heller
  smallflower gymnosteris
Ipomopsis aggregata (Pursh) V. Grant
  skyrocket gilia
Ipomopsis aggregata ssp. bridgesii (Gray) V.& A. Grant
  Bridge's gilia
Ipomopsis arizonica (Greene) Wherry
  Arizona skyrocket
Ipomopsis congesta (Hook.) V. Grant
  ballhead gilia
Ipomopsis congesta ssp. congesta (Hook.) V. Grant
  ballhead gilia
Ipomopsis congesta ssp. montana (A. Nels. & Kennedy) V. Grant
  mountain ballhead gilia
Ipomopsis congesta ssp. palmifrons (Brand) Day
  ballhead gilia
Ipomopsis depressa (M.E. Jones ex Gray) V. Grant
  depressed skyrocket
Ipomopsis effusa (Gray) Moran
  Baja skyrocket
Ipomopsis polycladon (Torr.) V. Grant
  manybranched gilia
Ipomopsis tenuifolia (Gray) V. Grant
  slenderleaf skyrocket
Langloisia setosissima (Torr. & Gray ex Torr.) Greene
  moth langloisia
Langloisia setosissima ssp. punctata (Gray ex Coville) Timbrook
  Great Basin langloisia
Langloisia setosissima ssp. setosissima (Torr. & Gray ex Torr.) Greene
  Great Basin langloisia
Leptodactylon californicum Hook. & Arn.
  California pricklyphlox
Leptodactylon californicum ssp. brevitrichomum Gordon
  California pricklyphlox
Leptodactylon californicum ssp. californicum Hook. & Arn.
  California pricklyphlox
Leptodactylon californicum ssp. glandulosum (Eastw.) Mason
  California pricklyphlox
Leptodactylon californicum ssp. leptotrichomum Gordon
  California pricklyphlox
Leptodactylon californicum ssp. tomentosum Gordon
  California pricklyphlox
Leptodactylon jaegeri (Munz) Wherry
  San Jacinto pricklyphlox
Leptodactylon pungens (Torr.) Torr. ex Nutt.
  granite pricklygilia
Linanthus acicularis Greene
  bristly deserttrumpets
Linanthus ambiguus (Rattan) Greene
  serpentine deserttrumpets
Linanthus androsaceus (Benth.) Greene
  false babystars
Linanthus androsaceus ssp. androsaceus (Benth.) Greene
  false babystars
Linanthus arenicola (M.E. Jones) Jepson & V. Bailey
  sanddune deserttrumpets
Linanthus aureus (Nutt.) Greene
  golden deserttrumpets
Linanthus aureus ssp. aureus (Nutt.) Greene
  golden deserttrumpets
Linanthus aureus ssp. decorus (Gray) Mason
  golden deserttrumpets
Linanthus bellus (Gray) Greene
  desertbeauty
Linanthus bicolor (Nutt.) Greene
  true babystars
Linanthus bicolor ssp. bicolor (Nutt.) Greene
  true babystars
Linanthus bicolor ssp. minimus Mason
  true babystars
Linanthus bigelovii (Gray) Greene
  Bigelow's deserttrumpets
Linanthus bolanderi (Gray) Greene
  Bolander's deserttrumpets
Linanthus breviculus (Gray) Greene
  Mojave deserttrumpets
Linanthus ciliatus (Benth.) Greene
  whiskerbrush
Linanthus ciliatus var. ciliatus (Benth.) Greene
  whiskerbrush
Linanthus ciliatus var. neglectus (Greene) Jepson
  whiskerbrush
Linanthus concinnus Milliken
  San Gabriel deserttrumpets
Linanthus demissus (Gray) Greene
  desertsnow
Linanthus dianthiflorus (Benth.) Greene
  fringed deserttrumpets
Linanthus dianthiflorus ssp. dianthiflorus (Benth.) Greene
  fringed deserttrumpets
Linanthus dianthiflorus ssp. farinosus (Brand) Mason
  fringed deserttrumpets
Linanthus dichotomus Benth.
  eveningsnow
Linanthus dichotomus ssp. dichotomus Benth.
  eveningsnow
Linanthus dichotomus ssp. meridianus (Eastw.) Mason
  eveningsnow
Linanthus filipes (Benth.) Greene
  thread deserttrumpets
Linanthus floribundus (Gray) Greene ex Milliken
  manyflower deserttrumpets
Linanthus floribundus ssp. floribundus (Gray) Greene ex Milliken
  manyflower deserttrumpets
Linanthus floribundus ssp. glabrus Patterson
  manyflower deserttrumpets
Linanthus floribundus ssp. hallii (Jepson) Mason
  Hall's deserttrumpets
Linanthus grandiflorus (Benth.) Greene
  largeflower deserttrumpets
Linanthus harknessii (Curran) Greene
  Harkness' flaxflower
Linanthus harknessii ssp. condensatus Mason
  Harkness' flaxflower
Linanthus harknessii ssp. harknessii (Curran) Greene
  Harkness' flaxflower
Linanthus jonesii (Gray) Greene
  Jones' deserttrumpets
Linanthus killipii Mason
  Baldwin Lake deserttrumpets
Linanthus lemmonii (Gray) Greene
  Lemmon's deserttrumpets
Linanthus liniflorus (Benth.) Greene
  narrowflower flaxflower
Linanthus liniflorus ssp. liniflorus (Benth.) Greene
  narrowflower flaxflower
Linanthus liniflorus ssp. pharnaceoides (Benth.) Mason
  lighthouse flaxflower
Linanthus montanus (Greene) Greene
  mustang clover
Linanthus nudatus Greene
  Tehachapi deserttrumpets
Linanthus nuttallii (Gray) Greene ex Milliken
  Nuttall's deserttrumpets
Linanthus nuttallii ssp. howellii T.W. Nelson & Patterson
  Howell's deserttrumpets
Linanthus nuttallii ssp. nuttallii (Gray) Greene ex Milliken
  Nuttall's deserttrumpets
Linanthus nuttallii ssp. pubescens Patterson
  Nuttall's deserttrumpets
Linanthus oblanceolatus (Brand) Eastw. ex Jepson
  subalpine deserttrumpets
Linanthus orcuttii (Parry & Gray) Jepson
  Orcutt's deserttrumpets
Linanthus pachyphyllus Patterson
  Sierran deserttrumpets
Linanthus parryae (Gray) Greene
  sandblossoms
Linanthus parviflorus (Benth.) Greene
Linanthus pygmaeus (Brand) J.T. Howell
  pygmy deserttrumpets
Linanthus pygmaeus ssp. continentalis Raven
  pygmy deserttrumpets
Linanthus pygmaeus ssp. pygmaeus (Brand) J.T. Howell
  pygmy deserttrumpets
Linanthus rattanii (Gray) Greene
  Rattan's deserttrumpets
Linanthus septentrionalis Mason
  northern linanthus
Linanthus serrulatus Greene
  Madera deserttrumpets
Loeseliastrum matthewsii (Gray) Timbrook
  desert calico
Loeseliastrum schottii (Torr.) Timbrook
  Schott's calico
Navarretia atractyloides (Benth.) Hook. & Arn.
  hollyleaf pincushionplant
Navarretia breweri (Gray) Greene
  Brewer's navarretia
Navarretia cotulifolia (Benth.) Hook. & Arn.
  cotulaleaf pincushionplant
Navarretia divaricata (Torr. ex Gray) Greene
  divaricate navarretia
Navarretia divaricata ssp. divaricata (Torr. ex Gray) Greene
  divaricate navarretia
Navarretia divaricata ssp. vividior (Jepson & V. Bailey) Mason
  divaricate navarretia
Navarretia eriocephala Mason
  hoary pincushionplant
Navarretia filicaulis (Torr. ex Gray) Greene
  threadstem pincushionplant
Navarretia fossalis Moran
  vernalpool pincushionplant
Navarretia hamata Greene
  hooked pincushionplant
Navarretia hamata ssp. hamata Greene
  hooked pincushionplant
Navarretia hamata ssp. leptantha (Greene) Mason
  hooked pincushionplant
Navarretia heterandra Mason
  Tehama pincushionplant
Navarretia heterodoxa (Greene) Greene
  Calistoga pincushionplant
Navarretia intertexta (Benth.) Hook.
  needleleaf navarretia
Navarretia intertexta ssp. intertexta (Benth.) Hook.
  needleleaf navarretia
Navarretia intertexta ssp. propinqua (Suksdorf) Day
  near navarretia
Navarretia jaredii Eastw.
  mitrefruit pincushionplant
Navarretia jepsonii V. Bailey ex Jepson
  Jepson's pincushionplant
Navarretia leucocephala Benth.
  whitehead navarretia
Navarretia leucocephala ssp. bakeri (Mason) Day
  Baker's navarretia
Navarretia leucocephala ssp. leucocephala Benth.
  whitehead navarretia
Navarretia leucocephala ssp. minima (Nutt.) Day
  least navarretia
Navarretia leucocephala ssp. pauciflora (Mason) Day
  fewflower navarretia
Navarretia leucocephala ssp. plieantha (Mason) Day
  manyflowered navarretia
Navarretia mellita Greene
  honeyscented pincushionplant
Navarretia nigelliformis Greene
  adobe navarretia
Navarretia nigelliformis ssp. nigelliformis Greene
  adobe navarretia
Navarretia nigelliformis ssp. radians (J.T. Howell) Day
  adobe navarretia
Navarretia peninsularis Greene
  Baja pincushionplant
Navarretia prolifera Greene
  burr pincushionplant
Navarretia prolifera ssp. lutea (Brand) Mason
  burr pincushionplant
Navarretia prolifera ssp. prolifera Greene
  burr pincushionplant
Navarretia prostrata (Gray) Greene
  prostrate pincushionplant
Navarretia pubescens (Benth.) Hook. & Arn.
  downy pincushionplant
Navarretia rosulata Brand
  San Anselmo navarretia
Navarretia setiloba Coville
  Paiute Mountain pincushionplant
Navarretia squarrosa (Eschsch.) Hook. & Arn.
  skunkbush
Navarretia subuligera Greene
  awlleaf pincushionplant
Navarretia tagetina Greene
  marigold pincushionplant
Navarretia viscidula Benth.
  sticky pincushionplant
Navarretia viscidula ssp. purpurea (Greene) Mason
  sticky pincushionplant
Navarretia viscidula ssp. viscidula Benth.
  sticky pincushionplant
Phlox adsurgens Torr. ex Gray
  northern phlox
Phlox austromontana Coville
  desert phlox
Phlox austromontana ssp. austromontana Coville
  desert mountain phlox
Phlox covillei E. Nels.
  Coville's phlox
Phlox diffusa Benth.
  spreading phlox
Phlox diffusa ssp. diffusa Benth.
  spreading phlox
Phlox diffusa ssp. subcarinata Wherry
  spreading phlox
Phlox dispersa C.W. Sharsmith
  disperse phlox
Phlox dolichantha Gray
  Bear Valley phlox
Phlox gracilis (Hook.) Greene
  slender phlox
Phlox gracilis ssp. gracilis (Hook.) Greene
  slender phlox
Phlox gracilis ssp. humilis (Greene) Mason
  dwarf phlox
Phlox hirsuta E. Nels.
  Yreka phlox
Phlox hoodii Richards.
  spiny phlox
Phlox hoodii ssp. canescens (Torr. & Gray) Wherry
  carpet phlox
Phlox hoodii ssp. lanata (Piper) Munz
  carpet phlox
Phlox hoodii ssp. muscoides (Nutt.) Wherry
  musk phlox
Phlox longifolia Nutt.
  longleaf phlox
Phlox longifolia ssp. brevifolia (Gray) Mason
  longleaf phlox
Phlox longifolia ssp. longifolia Nutt.
  longleaf phlox
Phlox pulvinata (Wherry) Cronq.
  cushion phlox
Phlox rigida Benth.
  stiff phlox
Phlox speciosa Pursh
  showy phlox
Phlox speciosa ssp. nitida (Suksdorf) Wherry
  showy phlox
Phlox speciosa ssp. occidentalis (Dur. ex Torr.) Wherry
  showy phlox
Phlox stansburyi (Torr.) Heller
  colddesert phlox
Phlox stansburyi ssp. stansburyi (Torr.) Heller
  Stansbury's phlox
Phlox stansburyi ssp. superba (Brand) Wherry
  colddesert phlox
Phlox viridis E. Nels.
  green phlox
Phlox viridis ssp. compacta (Brand) Wherry
  green phlox
Phlox viridis ssp. longipes (M.E. Jones) Wherry
  green phlox
Polemonium acutiflorum Willd. ex Roemer & J.A. Schultes
  tall Jacobsladder
Polemonium californicum Eastw.
  moving polemonium
Polemonium carneum Gray
  royal Jacobsladder
Polemonium chartaceum Mason
  Mason's Jacobsladder
Polemonium eximium Greene
  skypilot
Polemonium micranthum Benth.
  annual polemonium
Polemonium occidentale Greene
  western polemonium
Polemonium occidentale ssp. occidentale Greene
  western polemonium
Polemonium pulcherrimum Hook.
  skunkleaf polemonium
Polemonium pulcherrimum ssp. pulcherrimum Hook.
  pretty Jacobsladder

POLYGALACEAE
Polygala acanthoclada Gray
  desert polygala
Polygala californica Nutt.
  California milkwort
Polygala cornuta Kellogg
  Sierran milkwort
Polygala cornuta var. cornuta Kellogg
  Sierran milkwort
Polygala cornuta var. fishiae (Parry) Jepson
  Sierran milkwort
Polygala heterorhyncha (Barneby) T. Wendt
  beaked spiny polygala
Polygala subspinosa S. Wats.
  spiny polygala

POLYGONACEAE
Aristocapsa insignis (Curran) Reveal & Hardham
  Indian Valley spinycape
Centrostegia thurberi Gray ex Benth.
  red triangles
Chorizanthe angustifolia Nutt.
  narrowleaf spineflower
Chorizanthe biloba Goodman
  twolobe spineflower
Chorizanthe biloba var. biloba Goodman
  twolobe spineflower
Chorizanthe blakleyi Hardham
  Blakley's spineflower
Chorizanthe brevicornu Torr.
  brittle spineflower
Chorizanthe brevicornu var. brevicornu Torr.
  brittle spineflower
Chorizanthe brevicornu var. spathulata (Small ex Rydb.) C.L. Hitchc.
  brittle spineflower
Chorizanthe breweri S. Wats.
  San Luis Obispo spineflower
Chorizanthe clevelandii Parry
  Cleveland's spineflower
Chorizanthe corrugata (Torr.) Torr. & Gray
  wrinkled spineflower
Chorizanthe cuspidata S. Wats.
  San Francisco spineflower
Chorizanthe cuspidata var. cuspidata S. Wats.
  San Francisco spineflower
Chorizanthe cuspidata var. villosa (Eastw.) Munz
  San Francisco spineflower
Chorizanthe diffusa Benth.
  diffuse spineflower
Chorizanthe douglasii Benth.
  San Benito spineflower
Chorizanthe fimbriata Nutt.
  fringed spineflower
Chorizanthe fimbriata var. fimbriata Nutt.
  fringed spineflower
Chorizanthe fimbriata var. laciniata (Torr.) Jepson
  fringed spineflower
Chorizanthe howellii Goodman
  Mendocino spineflower
Chorizanthe leptotheca Goodman
  Ramona spineflower
Chorizanthe membranacea Benth.
  pink spineflower
Chorizanthe obovata Goodman
  spoonsepal spineflower
Chorizanthe orcuttiana Parry
  San Diego spineflower
Chorizanthe palmeri S. Wats.
  Palmer's spineflower
Chorizanthe parryi S. Wats.
  San Bernardino spineflower
Chorizanthe parryi var. fernandina (S. Wats.) Jepson
  San Bernardino spineflower
Chorizanthe parryi var. parryi S. Wats.
  Parry's spineflower
Chorizanthe polygonoides Torr. & Gray
  knotweed spineflower
Chorizanthe polygonoides var. longispina (Goodman) Munz
  knotweed spineflower
Chorizanthe polygonoides var. polygonoides Torr. & Gray
  knotweed spineflower
Chorizanthe procumbens Nutt.
  prostrate spineflower
Chorizanthe pungens Benth.
  Monterey spineflower
Chorizanthe pungens var. hartwegiana Reveal & Hardham
  Hartweg's spineflower
Chorizanthe pungens var. pungens Benth.
  Monterey spineflower
Chorizanthe rectispina Goodman
  prickly spineflower
Chorizanthe rigida (Torr.) Torr. & Gray
  devil's spineflower
Chorizanthe robusta Parry
  robust spineflower
Chorizanthe robusta var. hartwegii (Benth.) Reveal & Morgan
  robust spineflower
Chorizanthe robusta var. robusta Parry
  robust spineflower
Chorizanthe spinosa S. Wats.
  Mojave spineflower
Chorizanthe staticoides Benth.
  turkish rugging
Chorizanthe stellulata Benth.
  starlet spineflower
Chorizanthe uniaristata Torr. & Gray
  oneawn spineflower
Chorizanthe valida S. Wats.
  Sonoma spineflower
Chorizanthe ventricosa Goodman
  Priest Valley spineflower
Chorizanthe watsonii Torr. & Gray
  fivetooth spineflower
Chorizanthe wheeleri S. Wats.
  Santa Barbara spineflower
Chorizanthe xanti S. Wats.
  Riverside spineflower
Chorizanthe xanti var. leucotheca Goodman
  Riverside spineflower
Chorizanthe xanti var. xanti S. Wats.
  Riverside spineflower
Dedeckera eurekensis Reveal & J.T. Howell
  July gold
Dodecahema leptoceras (Gray ex Benth.) Reveal & Hardham
  slenderhorn spinyherb
Emex australis Steinh.
  southern threecornerjack
Emex spinosa (L.) Campd.
  spiny threecornerjack
Eriogonum X blissianum Mason
  Bliss' buckwheat
Eriogonum alpinum Engelm.
  Trinity buckwheat
Eriogonum ampullaceum J.T. Howell
  Mono buckwheat
Eriogonum anemophilum Greene
  west Humboldt buckwheat
Eriogonum angulosum Benth.
  anglestem buckwheat
Eriogonum apiculatum S. Wats.
  San Jacinto buckwheat
Eriogonum apricum J.T. Howell
  Ione buckwheat
Eriogonum apricum var. apricum J.T. Howell
  Ione buckwheat
Eriogonum apricum var. prostratum Myatt
  Ione buckwheat
Eriogonum arborescens Greene
  Santa Cruz Island buckwheat
Eriogonum argillosum J.T. Howell
  Coast Range buckwheat
Eriogonum baileyi S. Wats.
  Bailey's buckwheat
Eriogonum baileyi var. baileyi S. Wats.
  Bailey's buckwheat
Eriogonum baileyi var. praebens (Gandog.) Reveal
  Bailey's buckwheat
Eriogonum beatleyae Reveal
  Beatley's buckwheat
Eriogonum bifurcatum Reveal
  Pahrump Valley buckwheat
Eriogonum brachyanthum Coville
  shortflower buckwheat
Eriogonum brachypodum Torr. & Gray
  Parry's buckwheat
Eriogonum breedlovei (J.T. Howell) Reveal
  Piute buckwheat
Eriogonum breedlovei var. breedlovei (J.T. Howell) Reveal
  Piute buckwheat
Eriogonum breedlovei var. shevockii J.T. Howell
  Shevock's buckwheat
Eriogonum butterworthianum J.T. Howell
  Butterworth's buckwheat
Eriogonum caespitosum Nutt.
  matted buckwheat
Eriogonum cernuum Nutt.
  nodding buckwheat
Eriogonum cernuum var. cernuum Nutt.
  nodding buckwheat
Eriogonum cernuum var. viminale (S. Stokes) Reveal
  nodding buckwheat
Eriogonum chrysops Rydb.
  bitterroot buckwheat
Eriogonum cinereum Benth.
  coastal buckwheat
Eriogonum cithariforme S. Wats.
  Cithara buckwheat
Eriogonum cithariforme var. agninum (Greene) Reveal
  Cithara buckwheat
Eriogonum cithariforme var. cithariforme S. Wats.
  Cithara buckwheat
Eriogonum collinum S. Stokes ex M.E. Jones
  juniper buckwheat
Eriogonum compositum Dougl. ex Benth.
  arrowleaf buckwheat
Eriogonum compositum var. compositum Dougl. ex Benth.
  arrowleaf buckwheat
Eriogonum congdonii (S. Stokes) Reveal
  Congdon's buckwheat
Eriogonum contiguum (Reveal) Reveal
  annual desert trumpet
Eriogonum covilleanum Eastw.
  Coville's buckwheat
Eriogonum crocatum A. Davids.
  saffron buckwheat
Eriogonum dasyanthemum Torr. & Gray
  chaparral buckwheat
Eriogonum davidsonii Greene
  Davidson's buckwheat
Eriogonum deflexum Torr.
  flatcrown buckwheat
Eriogonum deflexum var. baratum (Elmer) Reveal
  flatcrown buckwheat
Eriogonum deflexum var. deflexum Torr.
  flatcrown buckwheat
Eriogonum deserticola S. Wats.
  Colorado Desert buckwheat
Eriogonum diclinum Reveal
  Jaynes Canyon buckwheat
Eriogonum douglasii Benth.
  Douglas' buckwheat
Eriogonum douglasii var. douglasii Benth.
  Douglas' buckwheat
Eriogonum eastwoodianum J.T. Howell
  Eastwood's buckwheat
Eriogonum elatum Dougl. ex Benth.
  tall woolly buckwheat
Eriogonum elatum var. elatum Dougl. ex Benth.
  tall woolly buckwheat
Eriogonum elatum var. villosum Jepson
  tall woolly buckwheat
Eriogonum elegans Greene
  elegant buckwheat
Eriogonum elongatum Benth.
  longstem buckwheat
Eriogonum eremicola J.T. Howell & Reveal
  Telescope Peak buckwheat
Eriogonum ericifolium Torr. & Gray
  Yavapai County buckwheat
Eriogonum ericifolium var. thornei Reveal & Henrickson
  Thorne's buckwheat
Eriogonum esmeraldense S. Wats.
  Esmeralda buckwheat
Eriogonum esmeraldense var. esmeraldense S. Wats.
  Esmeralda buckwheat
Eriogonum fasciculatum Benth.
  Eastern Mojave buckwheat
Eriogonum fasciculatum var. fasciculatum Benth.
  Eastern Mojave buckwheat
Eriogonum fasciculatum var. flavoviride Munz & Johnston
  Eastern Mojave buckwheat
Eriogonum fasciculatum var. foliolosum (Nutt.) S. Stokes ex Abrams
  Eastern Mojave buckwheat
Eriogonum fasciculatum var. polifolium (Benth.) Torr. & Gray
  Eastern Mojave buckwheat
Eriogonum foliosum S. Wats.
  Baja buckwheat
Eriogonum giganteum S. Wats.
  St. Catherine's lace
Eriogonum giganteum var. formosum Brandeg.
  St. Catherine's lace
Eriogonum giganteum var. giganteum S. Wats.
  St. Catherine's lace
Eriogonum gilmanii S. Stokes
  Gilman's buckwheat
Eriogonum glandulosum (Nutt.) Nutt. ex Benth.
  acorn buckwheat
Eriogonum gossypinum Curran
  cottony buckwheat
Eriogonum gracile Benth.
  slender woolly buckwheat
Eriogonum gracilipes S. Wats.
  White Mountain buckwheat
Eriogonum gracillimum S. Wats.
  rose and white buckwheat
Eriogonum gramineum S. Stokes
  = Eriogonum nudum var. westonii
Eriogonum grande Greene
  Pacific Island buckwheat
Eriogonum grande var. grande Greene
  Pacific Island buckwheat
Eriogonum grande var. rubescens (Greene) Munz
  Pacific Island buckwheat
Eriogonum grande var. timorum Reveal
  Pacific Island buckwheat
Eriogonum heermannii Dur. & Hilg.
  Heermann's buckwheat
Eriogonum heermannii var. argense (M.E. Jones) Munz
  Heermann's buckwheat
Eriogonum heermannii var. floccosum Munz
  Heermann's buckwheat
Eriogonum heermannii var. heermannii Dur. & Hilg.
  Heermann's buckwheat
Eriogonum heermannii var. humilius (S. Stokes) Reveal
  Heermann's buckwheat
Eriogonum heermannii var. occidentale S. Stokes
  Heermann's buckwheat
Eriogonum heermannii var. sulcatum (S. Wats.) Munz & Reveal
  Heermann's buckwheat
Eriogonum heracleoides Nutt.
  parsnipflower buckwheat
Eriogonum heracleoides var. angustifolium (Nutt.) Torr. & Gray
  parsnipflower buckwheat
Eriogonum heracleoides var. heracleoides Nutt.
  parsnipflower buckwheat
Eriogonum hirtellum J.T. Howell & Bacig.
  Klamath Mountain buckwheat
Eriogonum hirtiflorum Gray ex S. Wats.
  hairyflower buckwheat
Eriogonum hoffmannii S. Stokes
  Hoffmann's buckwheat
Eriogonum hoffmannii var. hoffmannii S. Stokes
  Hoffmann's buckwheat
Eriogonum hoffmannii var. robustius S. Stokes
  Hoffmann's buckwheat
Eriogonum hookeri S. Wats.
  Hooker's buckwheat
Eriogonum incanum Torr. & Gray
  frosted buckwheat
Eriogonum inerme (S. Wats.) Jepson
  unarmed buckwheat
Eriogonum inerme var. hispidulum Goodman
  unarmed buckwheat
Eriogonum inerme var. inerme (S. Wats.) Jepson
  unarmed buckwheat
Eriogonum inflatum Torr. & Frem.
  Native American pipeweed
Eriogonum inflatum var. deflatum I.M. Johnston
  Native American pipeweed
Eriogonum inflatum var. inflatum Torr. & Frem.
  Native American pipeweed
Eriogonum insigne S. Wats.
  ladder buckwheat
Eriogonum intrafractum Coville & Morton
  napkinring
Eriogonum kelloggii Gray
  Red Mountain buckwheat
Eriogonum kennedyi Porter ex S. Wats.
  Kennedy's buckwheat
Eriogonum kennedyi var. alpigenum Munz & Johnston
  Kennedy's buckwheat
Eriogonum kennedyi var. austromontanum Munz & Johnston
  Kennedy's buckwheat
Eriogonum kennedyi var. kennedyi Porter ex S. Wats.
  Kennedy's buckwheat
Eriogonum kennedyi var. pinicola Reveal
  Kennedy's buckwheat
Eriogonum kennedyi var. purpusii (Brandeg.) Reveal
  Purpus' buckwheat
Eriogonum latens Jepson
  Inyo buckwheat
Eriogonum latifolium Sm.
  seaside buckwheat
Eriogonum libertini Reveal
  Dubakella Mountain buckwheat
Eriogonum lobbii Torr. & Gray
  granite buckwheat
Eriogonum lobbii var. lobbii Torr. & Gray
  Lobb's buckwheat
Eriogonum luteolum Greene
  goldencarpet buckwheat
Eriogonum luteolum var. caninum (Greene) Reveal
  goldencarpet buckwheat
Eriogonum luteolum var. pedunculatum (Stokes) Reveal
  goldencarpet buckwheat
Eriogonum maculatum Heller
  spotted buckwheat
Eriogonum marifolium Torr. & Gray
  marumleaf buckwheat
Eriogonum microthecum Nutt.
  slender buckwheat
Eriogonum microthecum var. alpinum Reveal
  alpine slender buckwheat
Eriogonum microthecum var. ambiguum (M.E. Jones) Reveal
  slender buckwheat
Eriogonum microthecum var. corymbosoides Reveal
  slender buckwheat
Eriogonum microthecum var. johnstonii Reveal
  Johnston's buckwheat
Eriogonum microthecum var. lapidicola Reveal
  slender buckwheat
Eriogonum microthecum var. laxiflorum Hook.
  slender buckwheat
Eriogonum microthecum var. microthecum Nutt.
  slender buckwheat
Eriogonum microthecum var. panamintense S. Stokes
  Panamint buckwheat
Eriogonum microthecum var. simpsonii (Benth.) Reveal
  Simpson's buckwheat
Eriogonum mohavense S. Wats.
  Western Mojave buckwheat
Eriogonum molestum S. Wats.
  pineland buckwheat
Eriogonum nervulosum (S. Stokes) Reveal
  Snow Mountain buckwheat
Eriogonum nidularium Coville
  birdnest buckwheat
Eriogonum nortonii Greene
  pinnacled buckwheat
Eriogonum nudum Dougl. ex Benth.
  naked buckwheat
Eriogonum nudum var. auriculatum (Benth.) Tracy ex Jepson
  naked buckwheat
Eriogonum nudum var. decurrens (S. Stokes) M.L. Bowerman
  naked buckwheat
Eriogonum nudum var. deductum (Greene) Jepson
  naked buckwheat
Eriogonum nudum var. indictum (Jepson) Reveal
  naked buckwheat
Eriogonum nudum var. murinum Reveal
  naked buckwheat
Eriogonum nudum var. nudum Dougl. ex Benth.
  naked buckwheat
Eriogonum nudum var. oblongifolium S. Wats.
  naked buckwheat
Eriogonum nudum var. pauciflorum S. Wats.
  naked buckwheat
Eriogonum nudum var. pubiflorum Benth.
  naked buckwheat
Eriogonum nudum var. regirivum Reveal & J. Stebbins
  naked buckwheat
Eriogonum nudum var. scapigerum (Eastw.) Jepson
  naked buckwheat
Eriogonum nudum var. westonii (S. Stokes) J.T. Howell
  Weston's buckwheat
Eriogonum nummulare M.E. Jones
  money buckwheat
Eriogonum nutans Torr. & Gray
  Dugway buckwheat
Eriogonum nutans var. glabratum Reveal
  Dugway buckwheat
Eriogonum nutans var. nutans Torr. & Gray
  Dugway buckwheat
Eriogonum ochrocephalum S. Wats.
  whitewoolly buckwheat
Eriogonum ochrocephalum var. ochrocephalum S. Wats.
  whitewoolly buckwheat
Eriogonum ordii S. Wats.
  Fort Mojave buckwheat
Eriogonum ovalifolium Nutt.
  cushion buckwheat
Eriogonum ovalifolium var. eximium (Tidestrom) J.T. Howell
  cushion buckwheat
Eriogonum ovalifolium var. nivale (Canby) M.E. Jones
  cushion buckwheat
Eriogonum ovalifolium var. ovalifolium Nutt.
  cushion buckwheat
Eriogonum ovalifolium var. purpureum (Nutt.) Dur.
  cushion buckwheat
Eriogonum ovalifolium var. vineum (Small) Jepson
  cushion buckwheat
Eriogonum palmerianum Reveal
  Palmer's buckwheat
Eriogonum panamintense Morton
  Panamint Mountain buckwheat
Eriogonum panamintense var. mensicola (S. Stokes) Reveal
  Panamint Mountain buckwheat
Eriogonum panamintense var. panamintense Morton
  Panamint Mountain buckwheat
Eriogonum parishii S. Wats.
  mountainmist
Eriogonum parvifolium Sm.
  seacliff buckwheat
Eriogonum pendulum S. Wats.
  Waldo buckwheat
Eriogonum plumatella Dur. & Hilg.
  yucca buckwheat
Eriogonum polypodum Small
  foxtail buckwheat
Eriogonum prattenianum Dur.
  Nevada City buckwheat
Eriogonum prattenianum var. avium Reveal & Shevock
  Nevada City buckwheat
Eriogonum prociduum Reveal
  prostrate buckwheat
Eriogonum puberulum S. Wats.
  Red Creek buckwheat
Eriogonum pusillum Torr. & Gray
  yellowturbans
Eriogonum pyrolifolium Hook.
  Shasta buckwheat
Eriogonum pyrolifolium var. coryphaeum Torr. & Gray
  Shasta buckwheat
Eriogonum pyrolifolium var. pyrolifolium Hook.
  Shasta buckwheat
Eriogonum racemosum Nutt.
  redroot buckwheat
Eriogonum reniforme Torr. & Frem.
  kidneyleaf buckwheat
Eriogonum rixfordii S. Stokes
  pagoda buckwheat
Eriogonum rosense A. Nels. & Kennedy
  rosy buckwheat
Eriogonum roseum Dur. & Hilg.
  wand buckwheat
Eriogonum rupinum Reveal
  Wyman Creek buckwheat
Eriogonum saxatile S. Wats.
  hoary buckwheat
Eriogonum shockleyi S. Wats.
  Shockley's buckwheat
Eriogonum shockleyi var. shockleyi S. Wats.
  Shockley's buckwheat
Eriogonum siskiyouense Small
  Siskiyou buckwheat
Eriogonum spergulinum Gray
  spurry buckwheat
Eriogonum spergulinum var. pratense (S. Stokes) J.T. Howell
  spurry buckwheat
Eriogonum spergulinum var. reddingianum (M.E. Jones) J.T. Howell
  Redding buckwheat
Eriogonum spergulinum var. spergulinum Gray
  spurry buckwheat
Eriogonum sphaerocephalum Dougl. ex Benth.
  rock buckwheat
Eriogonum sphaerocephalum var. halimioides S. Stokes
  rock buckwheat
Eriogonum sphaerocephalum var. sphaerocephalum Dougl. ex Benth.
  rock buckwheat
Eriogonum strictum Benth.
  Blue Mountain buckwheat
Eriogonum strictum ssp. proliferum (Torr. & Gray) S. Stokes
  Blue Mountain buckwheat
Eriogonum strictum ssp. proliferum var. anserinum (Greene) R.J. Davis
  Blue Mountain buckwheat
Eriogonum strictum ssp. proliferum var. greenei (Gray) Reveal
  Greene's buckwheat
Eriogonum strictum ssp. proliferum var. proliferum (Torr. & Gray) C.L. Hitchc.
  Blue Mountain buckwheat
Eriogonum temblorense J.T. Howell & Twisselmann
  Temblor buckwheat
Eriogonum ternatum T.J. Howell
  ternate buckwheat
Eriogonum thomasii Torr.
  Thomas' buckwheat
Eriogonum thurberi Torr.
  Thurber's buckwheat
Eriogonum trichopes Torr.
  little deserttrumpet
Eriogonum tripodum Greene
  tripod buckwheat
Eriogonum truncatum Torr. & Gray
  Mt. Diablo buckwheat
Eriogonum twisselmannii (J.T. Howell) Reveal
  Twisselmann's buckwheat
Eriogonum umbellatum Torr.
  sulphur wildbuckwheat
Eriogonum umbellatum var. argus Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. aureum (Gandog.) Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. bahiiforme (Torr. & Gray) Jepson
  sulphurflower buckwheat
Eriogonum umbellatum var. chlorothamnus Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. covillei (Small) Munz & Reveal
  Coville's buckwheat
Eriogonum umbellatum var. dichrocephalum Gandog.
  sulphurflower buckwheat
Eriogonum umbellatum var. furcosum Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. glaberrimum (Gandog.) Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. goodmanii Reveal
  Goodman's buckwheat
Eriogonum umbellatum var. humistratum Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. juniporinum Reveal
  sulphurflower buckwheat
Eriogonum umbellatum var. minus I.M. Johnston
  sulphurflower buckwheat
Eriogonum umbellatum var. munzii Reveal
  Munz's buckwheat
Eriogonum umbellatum var. nevadense Gandog.
  Nevada buckwheat
Eriogonum umbellatum var. polyanthum (Benth.) M.E. Jones
  sulphurflower buckwheat
Eriogonum umbellatum var. speciosum (E. Drew) S. Stokes
  sulphurflower buckwheat
Eriogonum umbellatum var. stellatum (Benth.) M.E. Jones
  sulphurflower buckwheat
Eriogonum umbellatum var. subaridum S. Stokes
  sulphurflower buckwheat
Eriogonum umbellatum var. torreyanum (Gray) M.E. Jones
  Torrey buckwheat
Eriogonum umbellatum var. umbellatum Torr.
  sulphurflower buckwheat
Eriogonum umbellatum var. versicolor S. Stokes
  sulphurflower buckwheat
Eriogonum ursinum S. Wats.
  Bear Valley buckwheat
Eriogonum vestitum J.T. Howell
  Idria buckwheat
Eriogonum vimineum Dougl. ex Benth.
  wickerstem buckwheat
Eriogonum viridescens Heller
  twotooth buckwheat
Eriogonum watsonii Torr. & Gray
  Watson's buckwheat
Eriogonum wrightii Torr. ex Benth.
  bastardsage
Eriogonum wrightii var. membranaceum S. Stokes ex Jepson
  bastardsage
Eriogonum wrightii var. nodosum (Small) Reveal
  bastardsage
Eriogonum wrightii var. olanchense (J.T. Howell) Reveal
  bastardsage
Eriogonum wrightii var. subscaposum S. Wats.
  bastardsage
Eriogonum wrightii var. trachygonum (Torr. ex Benth.) Jepson
  bastardsage
Eriogonum wrightii var. wrightii Torr. ex Benth.
  Wright's bastardsage
Fagopyrum esculentum Moench
  fagopyrum
Gilmania luteola (Coville) Coville
  goldencarpet
Goodmania luteola (Parry) Reveal & Ertter
  yellow spinecape
Hollisteria lanata S. Wats.
  false spikeflower
Lastarriaea coriacea (Goodman) Hoover
  leather spineflower
Mucronea californica Benth.
  California spineflower
Mucronea perfoliata (Gray) Heller
  perfoliate spineflower
Muehlenbeckia complexa Meisn.
  maidenhair vine
Nemacaulis denudata Nutt.
  cottonheads
Nemacaulis denudata var. denudata Nutt.
  cottonheads
Nemacaulis denudata var. gracilis Goodman & L. Benson
  cottonheads
Oxyria digyna (L.) Hill
  alpine mountainsorrel
Oxytheca caryophylloides Parry
  chickweed puncturebract
Oxytheca dendroidea Nutt.
  narrowleaf oxytheca
Oxytheca emarginata Hall
  whitemargin puncturebract
Oxytheca parishii Parry
  Parish's puncturebract
Oxytheca parishii var. abramsii (McGregor) Munz
  Abrams' puncturebract
Oxytheca parishii var. cienegensis Ertter
  Parish's puncturebract
Oxytheca parishii var. goodmaniana Ertter
  Goodman's puncturebract
Oxytheca parishii var. parishii Parry
  Parish's puncturebract
Oxytheca perfoliata Torr. & Gray
  roundleaf puncturebract
Oxytheca trilobata Gray
  threelobe puncturebract
Oxytheca watsonii Torr. & Gray
  Watson's puncturebract
Polygonum amphibium L.
  water knotweed
Polygonum amphibium var. emersum Michx.
  longroot smartweed
Polygonum amphibium var. stipulaceum Coleman
  water smartweed
Polygonum arenastrum Jord. ex Boreau
  ovalleaf knotweed
Polygonum argyrocoleon Steud. ex Kunze
  silversheath knotweed
Polygonum aviculare L.
  prostrate knotweed
Polygonum baldschuanicum Regel
  Bukhara fleeceflower
Polygonum bellardii All.
  narrowleaf knotweed
Polygonum bidwelliae S. Wats.
  Bidwell's knotweed
Polygonum bistortoides Pursh
  American bistort
Polygonum bolandieri Brewer
  Bolander's knotweed
Polygonum buxiforme Small
  box knotweed
Polygonum californicum Meisn.
  California knotweed
Polygonum capitatum Buch.-Ham. ex D. Don
  pinkhead smartweed
Polygonum convolvulus L.
  black bindweed
Polygonum cuspidatum Sieb. & Zucc.
  Japanese knotweed
Polygonum davisiae Brewer ex Gray
  Davis' knotweed
Polygonum douglasii Greene
  Douglas' knotweed
Polygonum douglasii ssp. austiniae (Greene) E. Murr.
  Austin knotweed
Polygonum douglasii ssp. douglasii Greene
  Douglas' knotweed
Polygonum douglasii ssp. johnstonii (Munz) Hickman
  Johnston's knotweed
Polygonum douglasii ssp. spergulariiforme (Meisn. ex Small) Hickman
  scatter knotweed
Polygonum erectum L.
  erect knotweed
Polygonum fowleri B.L. Robins.
  Fowler's knotweed
Polygonum hydropiper L.
  marshpepper knotweed
Polygonum hydropiperoides Michx.
  swamp smartweed
Polygonum lapathifolium L.
  curlytop knotweed
Polygonum lapathifolium var. lapathifolium L.
  curlytop knotweed
Polygonum lapathifolium var. salicifolium Sibthorp
  curlytop knotweed
Polygonum marinense Mert. & Raven
  Marin knotweed
Polygonum minimum S. Wats.
  broadleaf knotweed
Polygonum newberryi Small
  Newberry's knotweed
Polygonum orientale L.
  kiss me over the garden gate
Polygonum paronychia Cham. & Schlecht.
  beach knotweed
Polygonum parryi Greene
  Parry's knotweed
Polygonum patulum Bieb.
  Bellard's smartweed
Polygonum pensylvanicum L.
  Pennsylvania smartweed
Polygonum persicaria L.
  spotted ladysthumb
Polygonum phytolaccifolium Meisn. ex Small
  poke knotweed
Polygonum polygaloides Wallich ex Meisn.
  polygala knotweed
Polygonum polygaloides ssp. confertiflorum (Nutt. ex Piper) Hickman
  fruitleaf knotweed
Polygonum polygaloides ssp. esotericum (L.C. Wheeler) Hickman
  whitemargin knotweed
Polygonum polygaloides ssp. kelloggii (Greene) Hickman
  Kellogg's knotweed
Polygonum polystachyum Wallich ex Meisn.
  cultivated knotweed
Polygonum punctatum Ell.
  dotted smartweed
Polygonum punctatum var. punctatum Ell.
  dotted smartweed
Polygonum ramosissimum Michx.
  bushy knotweed
Polygonum ramosissimum var. prolificum Small
  bushy knotweed
Polygonum ramosissimum var. ramosissimum Michx.
  bushy knotweed
Polygonum sachalinense F. Schmidt ex Maxim.
  giant knotweed
Polygonum shastense Brewer ex Gray
  Shasta knotweed
Pterostegia drymarioides Fisch. & C.A. Mey.
  woodland pterostegia
Rumex X acutus L. (pro sp.)
  acute dock
Rumex acetosella L.
  common sheep sorrel
Rumex aquaticus L.
  western dock
Rumex aquaticus var. fenestratus (Greene) Dorn
  western dock
Rumex conglomeratus Murr.
  clustered dock
Rumex crispus L.
  curly dock
Rumex dentatus L.
  toothed dock
Rumex hymenosepalus Torr.
  canaigre dock
Rumex kerneri Borbas
  Kerner's dock
Rumex maritimus L.
  golden dock
Rumex obtusifolius L.
  bitter dock
Rumex orbiculatus Gray
  greater water dock
Rumex paucifolius Nutt.
  fewleaved dock
Rumex paucifolius ssp. gracilescens (Rech. f.) Rech. f.
  alpine sheep sorrel
Rumex paucifolius ssp. paucifolius Nutt.
  fewleaved dock
Rumex pulcher L.
  fiddle dock
Rumex salicifolius Weinm.
  willow dock
Rumex salicifolius var. crassus (Rech. f.) J.T. Howell
  willow dock
Rumex salicifolius var. denticulatus Torr.
  toothed willow dock
Rumex salicifolius var. lacustris (Greene) Hickman
  lake willow dock
Rumex salicifolius var. mexicanus (Meisn.) C.L. Hitchc.
  Mexican dock
Rumex salicifolius var. salicifolius Weinm.
  willow dock
Rumex salicifolius var. transitorius (Rech. f.) Hickman
  willow dock
Rumex sanguineus L.
  redvein dock
Rumex stenophyllus Ledeb.
  narrowleaf dock
Rumex venosus Pursh
  veiny dock
Rumex violascens Rech. f.
  violet dock
Systenotheca vortriedei (Brandeg.) Reveal & Hardham
  systenotheca

POLYPODIACEAE
Polypodium amorphum Suksdorf
  irregular polypody
Polypodium californicum Kaulfuss
  California polypody
Polypodium glycyrrhiza D.C. Eat.
  licorice fern
Polypodium hesperium Maxon
  western polypody
Polypodium scouleri Hook. & Grev.
  leathery polypody

PONTEDERIACEAE
Eichhornia crassipes (Mart.) Solms
  common water hyacinth
Heteranthera dubia (Jacq.) MacM.
  grassleaf mudplantain
Heteranthera limosa (Sw.) Willd.
  blue mudplantain
Monochoria vaginalis (Burm. f.) K. Presl ex Kunth
  heartshape falsepickerelweed

PORTULACACEAE
Calandrinia breweri S. Wats.
  Brewer's redmaids
Calandrinia ciliata (Ruiz & Pavon) DC.
  fringed redmaids
Cistanthe ambigua (S. Wats.) Hershkovitz
  desert pussypaws
Cistanthe maritima (Nutt.) Hershkovitz
  seaside pussypaws
Cistanthe monandra (Nutt.) Hershkovitz
  common pussypaws
Cistanthe monosperma (Greene) Hershkovitz
  oneseed pussypaws
Cistanthe parryi (Gray) Hershkovitz
  Parry's pussypaws
Cistanthe parryi var. hesseae (Thomas) Kartesz & Gandhi
  Hesse's pussypaws
Cistanthe parryi var. nevadensis (J.T. Howell) Kartesz & Gandhi
  Nevada pussypaws
Cistanthe parryi var. parryi (Gray) Hershkovitz
  Parry's pussypaws
Cistanthe pulchella (Eastw.) Hershkovitz
  Mariposa pussypaws
Cistanthe pygmaea (Parish ex Rydb.) Hershkovitz
  pygmy pussypaws
Cistanthe quadripetala (S. Wats.) Hershkovitz
  fourpetal pussypaws
Cistanthe rosea (S. Wats.) Hershkovitz
  rosy pussypaws
Cistanthe umbellata (Torr.) Hershkovitz
  Mt. Hood pussypaws
Claytonia cordifolia S. Wats.
  heartleaf springbeauty
Claytonia exigua Torr. & Gray
Claytonia exigua ssp. exigua Torr. & Gray
Claytonia gypsophiloides Fisch. & C.A. Mey.
  gypsum springbeauty
Claytonia heterophylla (Torr. & Gray) Swanson
  variableleaf springbeauty
Claytonia lanceolata Pursh
  lanceleaf springbeauty
Claytonia lanceolata var. lanceolata Pursh
  lanceleaf springbeauty
Claytonia lanceolata var. peirsonii Munz & Johnston
  Peirson's springbeauty
Claytonia lanceolata var. sessilifolia (Torr.) A. Nels.
  lanceleaf springbeauty
Claytonia megarhiza (Gray) Parry ex S. Wats.
  alpine springbeauty
Claytonia megarhiza var. bellidifolia (Rydb.) C.L. Hitchc.
  alpine springbeauty
Claytonia nevadensis S. Wats.
  Sierran springbeauty
Claytonia palustris Swanson & Kelley
  Jonesville springbeauty
Claytonia parviflora Dougl. ex Hook.
  streambank springbeauty
Claytonia parviflora ssp. viridis (A. Davids.) J.M. Miller & K. Chambers
Claytonia perfoliata Donn ex Willd.
  miner's lettuce
Claytonia perfoliata ssp. perfoliata Donn ex Willd.
  miner's lettuce
Claytonia perfoliata ssp. perfoliata var. nubigena (Greene) Poelln.
  miner's lettuce
Claytonia perfoliata ssp. perfoliata var. perfoliata Donn ex Willd.
  miner's lettuce
Claytonia perfoliata ssp. perfoliata var. utahensis (Rydb.) Poelln.
  miner's lettuce
Claytonia rubra (T.J. Howell) Tidestrom
  redstem springbeauty
Claytonia saxosa Brandeg.
  Brandegee's springbeauty
Claytonia sibirica L.
  Siberian springbeauty
Claytonia sibirica var. bulbifera Gray
  Siberian springbeauty
Claytonia sibirica var. sibirica L.
  Siberian springbeauty
Claytonia spathulata Dougl. ex Hook.
  pale springbeauty
Claytonia spathulata var. spathulata Dougl. ex Hook.
  pale springbeauty
Claytonia umbellata S. Wats.
  Great Basin springbeauty
Lewisia brachycalyx Engelm. ex Gray
  shortsepal bitterroot
Lewisia cantelovii J.T. Howell
  Cantelow's bitterroot
Lewisia congdonii (Rydb.) S. Clay
  Congdon's bitterroot
Lewisia cotyledon (S. Wats.) B.L. Robins.
  Siskiyou bitterroot
Lewisia cotyledon var. cotyledon (S. Wats.) B.L. Robins.
  Siskiyou bitterroot
Lewisia cotyledon var. heckneri (Morton) Munz
  Heckner's bitterroot
Lewisia cotyledon var. howellii (S. Wats.) Jepson
  Howell's bitterroot
Lewisia disepala Rydb.
  Yosemite bitterroot
Lewisia kelloggii K. Brandeg.
  Kellogg's lewisia
Lewisia leeana (Porter) B.L. Robins.
  Lee's bitterroot
Lewisia longipetala (Piper) S. Clay
  Truckee bitterroot
Lewisia nevadensis (Gray) B.L. Robins.
  Nevada bitterroot
Lewisia oppositifolia (S. Wats.) B.L. Robins.
  oppositeleaf bitterroot
Lewisia pygmaea (Gray) B.L. Robins.
  pigmy bitterroot
Lewisia rediviva Pursh
  Oregon bitterroot
Lewisia rediviva var. minor (Rydb.) Munz
  Oregon bitterroot
Lewisia rediviva var. rediviva Pursh
  Oregon bitterroot
Lewisia serrata Heckard & Stebbins
  sawtooth bitterroot
Lewisia stebbinsii Gankin & Hildreth
  Stebbins' bitterroot
Lewisia triphylla (S. Wats.) B.L. Robins.
  threeleaf lewisia
Montia chamissoi (Ledeb. ex Spreng.) Greene
  water minerslettuce
Montia dichotoma (Nutt.) T.J. Howell
  dwarf minerslettuce
Montia diffusa (Nutt.) Greene
  spreading minerslettuce
Montia fontana L.
  annual water minerslettuce
Montia fontana ssp. fontana L.
  annual water minerslettuce
Montia fontana ssp. variabilis S.M. Walters
  variable minerslettuce
Montia howellii S. Wats.
  Howell's minerslettuce
Montia linearis (Dougl. ex Hook.) Greene
  narrowleaf minerslettuce
Montia parvifolia (Moc. ex DC.) Greene
  littleleaf minerslettuce
Montia perfoliata (Donn ex Willd.) T.J. Howell
  = Claytonia perfoliata ssp. perfoliata
Portulaca halimoides L.
  silkcotton purslane
Portulaca oleracea L.
  little hogweed

POTAMOGETONACEAE
Potamogeton alpinus Balbis
  alpine pondweed
Potamogeton amplifolius Tuckerman
  largeleaf pondweed
Potamogeton crispus L.
  curly pondweed
Potamogeton diversifolius Raf.
  waterthread pondweed
Potamogeton epihydrus Raf.
  ribbonleaf pondweed
Potamogeton filiformis Pers.
  fineleaf pondweed
Potamogeton filiformis var. alpinus (Blytt) Aschers. & Graebn.
  fineleaf pondweed
Potamogeton foliosus Raf.
  leafy pondweed
Potamogeton foliosus var. fibrillosus (Fern.) Haynes & Reveal
  leafy pondweed
Potamogeton foliosus var. foliosus Raf.
  leafy pondweed
Potamogeton gramineus L.
  variableleaf pondweed
Potamogeton illinoensis Morong
  Illinois pondweed
Potamogeton latifolius (J.W. Robbins) Morong
  broadleaf pondweed
Potamogeton natans L.
  floating pondweed
Potamogeton nodosus Poir.
  longleaf pondweed
Potamogeton pectinatus L.
  sago pondweed
Potamogeton praelongus Wulfen
  whitestem pondweed
Potamogeton pusillus L.
  small pondweed
Potamogeton pusillus var. pusillus L.
  small pondweed
Potamogeton pusillus var. tenuissimus Mert. & Koch
  small pondweed
Potamogeton richardsonii (Benn.) Rydb.
  Richardson's pondweed
Potamogeton robbinsii Oakes
  Robbins' pondweed
Potamogeton zosteriformis Fern.
  flatstem pondweed

PRIMULACEAE
Anagallis arvensis L.
  scarlet pimpernel
Anagallis foemina P. Mill.
  poorman's weatherglass
Anagallis minima (L.) Krause
  chaffweed
Anagallis monelli L.
  flaxleaf pimpernel
Androsace elongata L.
  California rockjasmine
Androsace elongata ssp. acuta (Greene) G.T. Robbins
  California rockjasmine
Androsace occidentalis Pursh
  western rockjasmine
Androsace septentrionalis L.
  pygmyflower rockjasmine
Androsace septentrionalis ssp. subumbellata (A. Nels.) G.T. Robbins
  pygmyflower rockjasmine
Dodecatheon alpinum (Gray) Greene
  alpine shootingstar
Dodecatheon alpinum ssp. alpinum (Gray) Greene
  alpine shootingstar
Dodecatheon alpinum ssp. majus H.J. Thompson
  alpine shootingstar
Dodecatheon clevelandii Greene
  padre's shootingstar
Dodecatheon clevelandii ssp. clevelandii Greene
  Cleveland's shootingstar
Dodecatheon clevelandii ssp. insulare H.J. Thompson
  padre's shootingstar
Dodecatheon clevelandii ssp. patulum (Greene) H.J. Thompson
  padre's shootingstar
Dodecatheon clevelandii ssp. sanctarum (Greene) Abrams
  padre's shootingstar
Dodecatheon conjugens Greene
  Bonneville shootingstar
Dodecatheon conjugens var. conjugens Greene
  Bonneville shootingstar
Dodecatheon hendersonii Gray
  mosquito bills
Dodecatheon hendersonii ssp. cruciatum (Greene) H.J. Thompson
  mosquito bills
Dodecatheon hendersonii ssp. hendersonii Gray
  Henderson's shootingstar
Dodecatheon hendersonii ssp. hansenii (Greene) Kartesz, comb. nov. ined.
Dodecatheon hendersonii ssp. parvifolium (R. Knuth) H.J. Thompson
  mosquito bills
Dodecatheon jeffreyi Van Houtte
  tall mountain shootingstar
Dodecatheon jeffreyi ssp. jeffreyi Van Houtte
  Jeffrey's shootingstar
Dodecatheon jeffreyi ssp. pygmaeum (Hall) H.J. Thompson
  pygmy shootingstar
Dodecatheon pulchellum (Raf.) Merr.
  darkthroat shootingstar
Dodecatheon pulchellum ssp. monanthum (Greene ex R. Knuth) H.J. Thompson ex Munz
  darkthroat shootingstar
Dodecatheon pulchellum ssp. pulchellum (Raf.) Merr.
  darkthroat shootingstar
Dodecatheon redolens (Hall) H.J. Thompson
  scented shootingstar
Dodecatheon subalpinum Eastw.
  Sierran shootingstar
Glaux maritima L.
  sea milkwort
Lysimachia nummularia L.
  creeping jenny
Lysimachia thyrsiflora L.
  tufted loosestrife
Primula suffrutescens Gray
  Sierran primrose
Samolus valerandi L.
  seaside brookweed
Samolus valerandi ssp. parviflorus (Raf.) Hulten
  seaside brookweed
Trientalis borealis Raf.
  American starflower
Trientalis borealis ssp. latifolia (Hook.) Hulten
  broadleaf starflower
Trientalis europaea ssp. arctica (Fisch. ex Hook.) Hulten
  arctic starflower

PTERIDACEAE
Adiantum X tracyi C.C. Hall ex W.H. Wagner
  Tracy's maidenhair
Adiantum aleuticum (Rupr.) Paris
  Aleutian maidenhair
Adiantum capillus-veneris L.
  common maidenhair
Adiantum jordanii C. Muell.
  California maidenhair
Adiantum pedatum L.
  northern maidenhair
Argyrochosma jonesii (Maxon) Windham
  Jones' falsecloak fern
Argyrochosma limitanea (Maxon) Windham
  southwestern falsecloak fern
Argyrochosma limitanea ssp. limitanea (Maxon) Windham
  southwestern falsecloak fern
Aspidotis carlotta-halliae (Wagner & Gilbert) Lellinger
  tufted lacefern
Aspidotis californica (Hook.) Nutt. ex Copeland
  California lacefern
Astrolepis cochisensis (Goodding) Benham & Windham
  Cochise scaly cloakfern
Astrolepis cochisensis ssp. cochisensis (Goodding) Benham & Windham
  Cochise scaly cloakfern
Aspidotis densa (Brack.) Lellinger
  Indian's dream
Astrolepis integerrima (Hook.) Benham & Windham
  hybrid cloakfern
Cheilanthes clevelandii D.C. Eat.
  Cleveland's lipfern
Cheilanthes cooperae D.C. Eat.
  Cooper's lipfern
Cheilanthes covillei Maxon
  Coville's lipfern
Cheilanthes feei T. Moore
  slender lipfern
Cheilanthes X fibrillosa (Davenport) Davenport ex Underwood (pro sp.)
  fibril lipfern
Cheilanthes gracillima D.C. Eat.
  lace lipfern
Cheilanthes intertexta (Maxon) Maxon
  coastal lipfern
Cheilanthes newberryi (D.C. Eat.) Domin
  Newberry's lipfern
Cheilanthes X parishii Davenport (pro sp.)
  Parish's lipfern
Cheilanthes parryi (D.C. Eat.) Domin
  Parry's lipfern
Cheilanthes viscida Davenport
  viscid lipfern
Cheilanthes wootonii Maxon
  beaded lipfern
Cryptogramma acrostichoides R. Br.
  American rockbrake
Notholaena californica D.C. Eat.
  California cloak fern
Notholaena californica ssp. californica D.C. Eat.
  California cloak fern
Pellaea X glaciogena W.H. Wagner, Pray & A.R. Smith
  cliffbrake
Pellaea andromedifolia (Kaulfuss) Fee
  coffee cliffbrake
Pellaea brachyptera (T. Moore) Baker
  Sierran cliffbrake
Pellaea breweri D.C. Eat.
  Brewer's cliffbrake
Pellaea bridgesii Hook.
  Bridges' cliffbrake
Pellaea mucronata (D.C. Eat.) D.C. Eat.
  birdfoot cliffbrake
Pellaea mucronata ssp. californica (Lemmon) Windham
  California cliffbrake
Pellaea mucronata ssp. mucronata (D.C. Eat.) D.C. Eat.
  birdfoot cliffbrake
Pellaea truncata Goodding
  spiny cliffbrake
Pentagrama pallida (Weatherby) Yatskievych, Windham & Wollenweber
  pale goldfern
Pentagrama triangularis (Kaulfuss) Yatskievych, Windham & Wollenweber
  western goldfern
Pentagrama triangularis ssp. maxonii (Weatherby) Yatskievych, Windham & Wollenweber
  Maxon's goldfern
Pentagrama triangularis ssp. semipallida (J.T. Howell) Yatskievych, Windham & Wollenweber
  western goldfern
Pentagrama triangularis ssp. triangularis (Kaulfuss) Yatskievych, Windham & Wollenweber
  western goldfern
Pentagrama triangularis ssp. viscosa (D.C. Eat.) Yatskievych, Windham & Wollenweber
  western goldfern
Pteris cretica L.
  Cretan brake
Pteris multifida Poir.
  spider brake
Pteris vittata L.
  ladder brake

RAFFLESIACEAE
Pilostyles thurberi Gray
  stemsucker

RANUNCULACEAE
Aconitum columbianum Nutt.
  Columbian monkshood
Aconitum columbianum var. columbianum Nutt.
  Columbian monkshood
Actaea arguta Nutt.
  = Actaea rubra ssp. arguta
Actaea rubra (Ait.) Willd.
  red baneberry
Actaea rubra ssp. arguta (Nutt.) Hulten
  red baneberry
Adonis aestivalis L.
  summer pheasant's eye
Anemone deltoidea Hook.
  Columbian windflower
Anemone drummondii S. Wats.
  Drummond's anemone
Anemone drummondii ssp. drummondii S. Wats.
  Drummond's anemone
Anemone globosa (Torr. & Gray) Nutt. ex Pritz.
  = Anemone multifida var. hudsoniana
Anemone multifida Poir.
  Pacific anemone
Anemone multifida var. hudsoniana DC.
  Hudson's anemone
Anemone occidentalis S. Wats.
  = Pulsatilla occidentalis
Anemone oregana Gray
  blue windflower
Anemone oregana var. oregana Gray
  blue windflower
Anemone quinquefolia L.
  nightcaps
Anemone tuberosa Rydb.
  tuber anemone
Aquilegia eximia Van Houtte ex Planch.
  Van Houtte's columbine
Aquilegia formosa Fisch. ex DC.
  western columbine
Aquilegia formosa var. formosa Fisch. ex DC.
  crimson columbine
Aquilegia pubescens Coville
  Sierran columbine
Caltha biflora DC.
  = Caltha leptosepala ssp. howellii
Caltha leptosepala DC.
  white marshmarigold
Caltha leptosepala ssp. howellii (Huth) P.G. Sm.
  Howell's marshmarigold
Caltha palustris L.
  yellow marshmarigold
Ceratocephala testiculata (Crantz) Bess.
  curveseed butterwort
Clematis lasiantha Nutt.
  pipestem clematis
Clematis ligusticifolia Nutt.
  western white clematis
Clematis ligusticifolia var. brevifolia Nutt.
  western white clematis
Clematis ligusticifolia var. californica S. Wats.
  California clematis
Clematis ligusticifolia var. ligusticifolia Nutt.
  western white clematis
Clematis pauciflora Nutt.
  ropevine clematis
Consolida ajacis (L.) Schur
  doubtful knight's spur
Coptis laciniata Gray
  Oregon goldthread
Delphinium X inflexum A. Davids. (pro sp.)
  larkspur
Delphinium andersonii Gray
  Anderson's larkspur
Delphinium andersonii ssp. andersonii Gray
  Anderson's larkspur
Delphinium bakeri Ewan
  Baker's delphinium
Delphinium californicum Torr. & Gray
  California larkspur
Delphinium californicum ssp. californicum Torr. & Gray
  California larkspur
Delphinium californicum ssp. interius (Eastw.) Ewan
  California larkspur
Delphinium cardinale Hook.
  scarlet larkspur
Delphinium decorum Fisch. & C.A. Mey.
  coastal larkspur
Delphinium decorum ssp. decorum Fisch. & C.A. Mey.
  coastal larkspur
Delphinium decorum ssp. tracyi Ewan
  Tracy's larkspur
Delphinium depauperatum Nutt.
  slim larkspur
Delphinium glaucum S. Wats.
  Sierra larkspur
Delphinium gracilentum Greene
  pine forest larkspur
Delphinium gypsophilum Ewan
  Pinoche Creek larkspur
Delphinium gypsophilum ssp. gypsophilum Ewan
  Pinoche Creek larkspur
Delphinium gypsophilum ssp. parviflorum Lewis & Epling
  Pinoche Creek larkspur
Delphinium hansenii (Greene) Greene
  Eldorado larkspur
Delphinium hansenii ssp. ewanianum Warnock
  Ewan's larkspur
Delphinium hansenii ssp. hansenii (Greene) Greene
  Hansen's larkspur
Delphinium hansenii ssp. kernense (A. Davids.) Ewan
  Kern larkspur
Delphinium hesperium Gray
  foothill larkspur
Delphinium hesperium ssp. cuyamacae (Abrams) Lewis & Epling
  foothill larkspur
Delphinium hesperium ssp. hesperium Gray
  foothill larkspur
Delphinium hesperium ssp. pallescens (Ewan) Lewis & Epling
  foothill larkspur
Delphinium hutchinsoniae Ewan
  Monterey larkspur
Delphinium inopinum (Jepson) Lewis & Epling
  unexpected larkspur
Delphinium luteum Heller
  yellow larkspur
Delphinium menziesii DC.
  Menzies' larkspur
Delphinium menziesii ssp. menziesii DC.
  Menzies' larkspur
Delphinium nudicaule Torr. & Gray
  red larkspur
Delphinium nuttallianum Pritz. ex Walp.
  Nuttal's larkspur
Delphinium nuttallianum var. nuttallianum Pritz. ex Walp.
  Nuttal's larkspur
Delphinium parishii Gray
  desert larkspur
Delphinium parishii ssp. pallidum (Munz) Warnock
  pallid larkspur
Delphinium parishii ssp. parishii Gray
  Parish's larkspur
Delphinium parishii ssp. subglobosum (Wiggins) Lewis & Epling
  oceanblue larkspur
Delphinium parryi Gray
  San Bernardino larkspur
Delphinium parryi ssp. blochmaniae (Greene) Lewis & Epling
  Blochman's larkspur
Delphinium parryi ssp. eastwoodiae Ewan
  Eastwood's larkspur
Delphinium parryi ssp. maritimum (A. Davids.) Warnock
  seaside larkspur
Delphinium parryi ssp. parryi Gray
  San Bernardino larkspur
Delphinium parryi ssp. purpureum (Lewis & Epling) Warnock
  San Bernardino larkspur
Delphinium patens Benth.
  zigzag larkspur
Delphinium patens ssp. hepaticoideum Ewan
  zigzag larkspur
Delphinium patens ssp. montanum (Munz) Ewan
  zigzag larkspur
Delphinium patens ssp. patens Benth.
  zigzag larkspur
Delphinium polycladon Eastw.
  mountain marsh larkspur
Delphinium purpusii Brandeg.
  Kern County larkspur
Delphinium recurvatum Greene
  Byron larkspur
Delphinium stachydeum (Gray) Tidestrom
  Rocky Mountain larkspur
Delphinium trolliifolium Gray
  Columbian larkspur
Delphinium uliginosum Curran
  swamp larkspur
Delphinium umbraculorum Lewis & Epling
  umbrella larkspur
Delphinium variegatum Torr. & Gray
  royal larkspur
Delphinium variegatum ssp. apiculatum (Greene) Ewan
  royal larkspur
Delphinium variegatum ssp. kinkiense (Munz) Warnock
  royal larkspur
Delphinium variegatum ssp. thornei Munz
  royal larkspur
Delphinium variegatum ssp. variegatum Torr. & Gray
  royal larkspur
Enemion occidentale (Hook. & Arn.) Drumm. & Hutchinson
  western false rue anemone
Enemion stipitatum (Gray) Drumm. & Hutchinson
  Siskiyou false rue anemone
Kumlienia hystricula (Gray) Greene
  waterfall false buttercup
Myosurus apetalus var. montanus (Campbell) Whitemore
Myosurus aristatus Benth.
  bristle mousetail
Myosurus cupulatus S. Wats.
  Arizona mousetail
Myosurus minimus ssp. apus (Greene) Campbell
  tiny mousetail
Myosurus minimus ssp. apus var. apus Greene
  tiny mousetail
Myosurus minimus ssp. apus var. filiformis Greene
  tiny mousetail
Myosurus minimus ssp. apus var. sessiliflorus (Huth) Campbell
  tiny mousetail
Myosurus minimus ssp. major (Greene) Campbell
  tiny mousetail
Myosurus minimus ssp. major var. major (Greene) K.C. Davis
  tiny mousetail
Myosurus minimus ssp. minimus L.
  tiny mousetail
Myosurus minumus L.
  tiny mousetail
Pulsatilla occidentalis (S. Wats.) Freyn
  white pasqueflower
Ranunculus acris L.
  tall buttercup
Ranunculus acris var. acris L.
  showy buttercup
Ranunculus alismifolius Geyer ex Benth.
  plantainleaf buttercup
Ranunculus alismifolius var. alismellus Gray
  plantainleaf buttercup
Ranunculus alismifolius var. alismifolius Geyer ex Benth.
  plantainleaf buttercup
Ranunculus andersonii Gray
  Anderson's buttercup
Ranunculus andersonii var. andersonii Gray
  Anderson's buttercup
Ranunculus aquatilis L.
  whitewater crowfoot
Ranunculus arvensis L.
  corn buttercup
Ranunculus bonariensis Poir.
  Carter's buttercup
Ranunculus bonariensis var. trisepalus (Gillies ex Hook. & Arn.) Lourteig
  Carter's buttercup
Ranunculus bulbosus L.
  St. Anthony's turnip
Ranunculus californicus Benth.
  California buttercup
Ranunculus californicus var. californicus Benth.
  California buttercup
Ranunculus canus Benth.
  Sacramento Valley buttercup
Ranunculus canus var. canus Benth.
  Sacramento Valley buttercup
Ranunculus cymbalaria Pursh
  alkali buttercup
Ranunculus cymbalaria var. saximontanus Fern.
  Rocky Mountain buttercup
Ranunculus eschscholtzii Schlecht.
  Eschscholtz's buttercup
Ranunculus eschscholtzii var. eschscholtzii Schlecht.
  Eschscholtz's buttercup
Ranunculus eschscholtzii var. oxynotus (Gray) Jepson
  Eschscholtz's buttercup
Ranunculus flabellaris Raf.
  yellow water buttercup
Ranunculus flammula L.
  spearwort buttercup
Ranunculus flammula var. flammula L.
  flam buttercup
Ranunculus glaberrimus Hook.
  sagebrush buttercup
Ranunculus glaberrimus var. ellipticus (Greene) Greene
  elliptical buttercup
Ranunculus glaberrimus var. glaberrimus Hook.
  sagebrush buttercup
Ranunculus gormanii Greene
  Gorman's buttercup
Ranunculus hebecarpus Hook. & Arn.
  delicate buttercup
Ranunculus hydrocharoides Gray
  frogbit buttercup
Ranunculus hydrocharoides var. hydrocharoides Gray
  frogbit buttercup
Ranunculus lobbii (Hiern) Gray
  Lobb's buttercup
Ranunculus longirostris Godr.
  longbeak buttercup
Ranunculus macounii Britt.
  Macoun's buttercup
Ranunculus muricatus L.
  spinyfruit buttercup
Ranunculus occidentalis Nutt.
  western buttercup
Ranunculus occidentalis var. occidentalis Nutt.
  western buttercup
Ranunculus orthorhynchus Hook.
  straightbeak buttercup
Ranunculus orthorhynchus var. bloomeri (S. Wats.) L. Benson
  Bloomer's buttercup
Ranunculus orthorhynchus var. orthorhynchus Hook.
  straightbeak buttercup
Ranunculus parviflorus L.
  smallflower buttercup
Ranunculus populago Greene
  popular buttercup
Ranunculus pusillus Poir.
  low spearwort
Ranunculus pusillus var. pusillus Poir.
  low spearwort
Ranunculus repens L.
  creeping buttercup
Ranunculus repens var. degeneratus Schur
  creeping buttercup
Ranunculus repens var. repens L.
  creeping buttercup
Ranunculus sardous Crantz
  hairy buttercup
Ranunculus sceleratus L.
  celeryleaf buttercup
Ranunculus sceleratus var. multifidus Nutt.
  blister buttercup
Ranunculus sceleratus var. sceleratus L.
  cursed buttercup
Ranunculus suksdorfii Gray
  Suksdorf's buttercup
Ranunculus trichophyllus Chaix
  whitewater crowfoot
Ranunculus trichophyllus var. trichophyllus Chaix
  hairleaf water buttercup
Ranunculus uncinatus D. Don ex G. Don
  hooked buttercup
Ranunculus uncinatus var. parviflorus (Torr.) L. Benson
  common Idaho buttercup
Ranunculus uncinatus var. uncinatus D. Don ex G. Don
  woodland buttercup
Thalictrum alpinum L.
  alpine meadowrue
Thalictrum fendleri Engelm. ex Gray
  Fendler's meadowrue
Thalictrum fendleri var. fendleri Engelm. ex Gray
  Fendler's meadowrue
Thalictrum fendleri var. polycarpum Torr.
  Fendler's meadowrue
Thalictrum occidentale Gray
  western meadowrue
Thalictrum occidentale var. occidentale Gray
  western meadowrue
Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey.
  fewflower meadowrue
Trautvetteria caroliniensis (Walt.) Vail
  Carolina bugbane

RESEDACEAE
Oligomeris linifolia (Vahl) J.F. Macbr.
  lineleaf whitepuff
Reseda alba L.
  white upright mignonette
Reseda lutea L.
  yellow mignonette
Reseda luteola L.
  weld
Reseda odorata L.
  garden mignonette

RHAMNACEAE
Adolphia californica S. Wats.
  California prickbush
Ceanothus X arcuatus McMinn (pro sp.)
  arching ceanothus
Ceanothus X bakeri Greene ex C.F. Baker (pro sp.)
  Baker's ceanothus
Ceanothus X flexilis Greene ex McMinn
  flexible ceanothus
Ceanothus X lobbianus Hook. (pro sp.)
  lobbian ceanothus
Ceanothus X lorenzenii (Jepson) McMinn
  Lorenzen's ceanothus
Ceanothus X mendocinensis McMinn
  Mendocino ceanothus
Ceanothus X otayensis McMinn
  Otay ceanothus
Ceanothus X serrulatus McMinn (pro sp.)
  bittersweet
Ceanothus X rugosus Greene (pro sp.)
  rugose ceanothus
Ceanothus X vanrensselaeri J.B. Roof
  Vanrensselaer ceanothus
Ceanothus X veitchianus Hook. (pro sp.)
  Veitch ceanothus
Ceanothus arboreus Greene
  feltleaf ceanothus
Ceanothus cordulatus Kellogg
  whitethorn ceanothus
Ceanothus connivens Greene
  trailing buckbrush
Ceanothus crassifolius Torr.
  hoaryleaf ceanothus
Ceanothus cuneatus (Hook.) Nutt.
  buckbrush
Ceanothus cuneatus ssp. cuneatus (Hook.) Nutt.
  coast buckbrush
Ceanothus cuneatus ssp. fascicularis (McMinn) C. Schmidt
  sedgeleaf buckbrush
Ceanothus cuneatus ssp. rigidus (Nutt.) C. Schmidt
  Monterey ceanothus
Ceanothus cuneatus ssp. sonomensis (J.T. Howell) C. Schmidt
  Sonoma ceanothus
Ceanothus cyaneus Eastw.
  San Diego buckbrush
Ceanothus dentatus Torr. & Gray
  sandscrub ceanothus
Ceanothus diversifolius Kellogg
  pinemat
Ceanothus ferrisiae McMinn
  coyote ceanothus
Ceanothus foliosus Parry
  wavyleaf ceanothus
Ceanothus foliosus ssp. foliosus Parry
  wavyleaf buckbrush
Ceanothus foliosus ssp. medius (McMinn) C. Schmidt
  wavyleaf buckbrush
Ceanothus foliosus ssp. vineatus (McMinn) C. Schmidt
  wavyleaf buckbrush
Ceanothus fresnensis Dudley ex Abrams
  Fresno mat
Ceanothus gloriosus J.T. Howell
  Point Reyes ceanothus
Ceanothus gloriosus ssp. exaltatus (J.T. Howell) C. Schmidt
  Point Reyes ceanothus
Ceanothus gloriosus ssp. gloriosus J.T. Howell
  Point Reyes creeper
Ceanothus gloriosus ssp. masonii (McMinn) C. Schmidt
  Mason's ceanothus
Ceanothus gloriosus ssp. porrectus (J.T. Howell) C. Schmidt
  Point Reyes creeper
Ceanothus greggii Gray
  desert ceanothus
Ceanothus greggii var. perplexans (Trel.) Jepson
Ceanothus greggii ssp. vestitus (Greene) C. Schmidt
  Mojave ceanothus
Ceanothus griseus (Trel. ex B.L. Robins.) McMinn
  Carmel ceanothus
Ceanothus hearstiorum Hoover & J.B. Roof
  Hearst Ranch deerbrush
Ceanothus impressus Trel.
  Santa Barbara ceanothus
Ceanothus incanus Torr. & Gray
  coast whitethorn
Ceanothus integerrimus Hook. & Arn.
  deerbrush
Ceanothus jepsonii Greene
  Jepson ceanothus
Ceanothus jepsonii ssp. albiflorus (J.T. Howell) C. Schmidt
  Jepson ceanothus
Ceanothus jepsonii ssp. jepsonii Greene
  Jepson ceanothus
Ceanothus lemmonii Parry
  Lemmon's ceanothus
Ceanothus leucodermis Greene
  chaparral whitethorn
Ceanothus maritimus Hoover
  maritime ceanothus
Ceanothus megacarpus Nutt.
  bigpod ceanothus
Ceanothus megacarpus var. insularis (Eastw.) Munz
Ceanothus megacarpus ssp. megacarpus Nutt.
  bigpod ceanothus
Ceanothus oliganthus Nutt.
  hairy ceanothus
Ceanothus oliganthus ssp. oliganthus Nutt.
  explorer's bush
Ceanothus ophiochilus Boyd, Ross & Arnseth
  buckthorn
Ceanothus palmeri Trel.
  Palmer ceanothus
Ceanothus papillosus Torr. & Gray
  wartleaf ceanothus
Ceanothus parryi Trel.
  Parry ceanothus
Ceanothus parvifolius (S. Wats.) Trel.
  littleleaf ceanothus
Ceanothus papillosus ssp. papillosus Torr. & Gray
  King hybrid ceanothus
Ceanothus papillosus ssp. roweanus (McMinn) C. Schmidt
  benniebush
Ceanothus pinetorum Coville
  Coville ceanothus
Ceanothus prostratus Benth.
  squawcarpet
Ceanothus prostratus ssp. confusus (J.T. Howell) C. Schmidt
  squawcarpet
Ceanothus prostratus ssp. prostratus Benth.
  squawcarpet
Ceanothus prostratus ssp. pumilus (Greene) C. Schmidt
  dwarf ceanothus
Ceanothus purpureus Jepson
  hollyleaf ceanothus
Ceanothus purpureus ssp. divergens (Parry) C. Schmidt
  Calistoga ceanothus
Ceanothus purpureus ssp. purpureus Jepson
  Napa buckbrush
Ceanothus roderickii Knight
  Pine Hill buckbrush
Ceanothus sanguineus Pursh
  redstem ceanothus
Ceanothus sorediatus Hook. & Arn.
Ceanothus spinosus Nutt.
  spiny ceanothus
Ceanothus thyrsiflorus Eschsch.
  blueblossom ceanothus
Ceanothus tomentosus Parry
  woolyleaf ceanothus
Ceanothus velutinus Dougl. ex Hook.
  snowbrush ceanothus
Ceanothus verrucosus Nutt.
  barranca brush
Ceanothus velutinus ssp. hookeri (M.C. Johnston) C. Schmidt
  Hooker's ceanothus
Ceanothus velutinus ssp. velutinus Dougl. ex Hook.
  tobacco brush
Colubrina californica I.M. Johnston
  Las Animas nakedwood
Colubrina L.C. Rich. ex Brongn.
  colubrina
Condalia globosa I.M. Johnston
  bitter snakewood
Condalia globosa var. pubescens I.M. Johnston
  bitter snakewood
Condalia lycioides var. canescens (Gray) Trel.
  = Ziziphus obtusifolia var. canescens
Condalia parryi (Torr.) Weberb.
  = Ziziphus parryi
Frangula californica (Eschsch.) Gray
  California buckthorn
Frangula californica ssp. californica (Eschsch.) Gray
  California buckthorn
Frangula californica ssp. crassifolia (Jepson) Kartesz & Gandhi
  California buckthorn
Frangula californica ssp. cuspidata (Greene) Kartesz & Gandhi
  California buckthorn
Frangula californica ssp. occidentalis (T.J. Howell) Kartesz & Gandhi
  California buckthorn
Frangula californica ssp. tomentella (Benth.) Kartesz & Gandhi
  California buckthorn
Frangula californica ssp. ursina (Greene) Kartesz & Gandhi
  California buckthorn
Frangula purshiana (DC.) Cooper
  Pursh's buckthorn
Frangula rubra (Greene) V. Grub.
  red buckthorn
Frangula rubra ssp. modocensis (C.B. Wolf) Kartesz & Gandhi
  Modoc buckthorn
Frangula rubra ssp. obtusissima (Greene) Kartesz & Gandhi
  obtuse buckthorn
Frangula rubra ssp. rubra (Greene) V. Grub.
  red buckthorn
Frangula rubra ssp. yosemitana (C.B. Wolf) Kartesz & Gandhi
  Yosemite buckthorn
Rhamnus alnifolia L'Her.
  alderleaf buckthorn
Rhamnus californica Eschsch.
  = Frangula californica ssp. californica
Rhamnus cathartica L.
  common buckthorn
Rhamnus crocea Nutt.
  redberry buckthorn
Rhamnus crocea ssp. crocea Nutt.
  redberry buckthorn
Rhamnus crocea ssp. ilicifolia (Kellogg) C.B. Wolf
  hollyleaf redberry
Rhamnus crocea ssp. pilosa (Trel.) C.B. Wolf
  hollyleaf buckthorn
Rhamnus pirifolia Greene
  island redberry
Rhamnus purshiana DC.
  = Frangula purshiana
Rhamnus rubra Greene
  = Frangula rubra ssp. rubra
Rhamnus tomentella Benth.
  = Frangula californica ssp. tomentella
Ziziphus jujuba (L.) Lam., non P. Mill.
  = Ziziphus mauritiana
Ziziphus mauritiana Lam.
  Indian jujube
Ziziphus obtusifolia (Hook. ex Torr. & Gray) Gray
  lotebush
Ziziphus obtusifolia var. canescens (Gray) M.C. Johnston
  lotebush
Ziziphus parryi Torr.
  Parry's jujube

ROSACEAE
Acaena novae-zelandica Kirk
  New Zealand acaena
Acaena pinnatifida Ruiz & Pavon
Acaena pinnatifida var. californica (Bitter) Jepson
Adenostoma fasciculatum Hook. & Arn.
  common chamise
Adenostoma fasciculatum var. fasciculatum Hook. & Arn.
  common chamise
Adenostoma fasciculatum var. obtusifolium S. Wats.
  common chamise
Adenostoma sparsifolium Torr.
  redshank
Agrimonia gryposepala Wallr.
  tall hairy agrimony
Alchemilla .
  = Aphanes 
Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer
  Saskatoon serviceberry
Amelanchier alnifolia var. semiintegrifolia (Hook.) C.L. Hitchc.
  Pacific serviceberry
Amelanchier pallida Greene
  pale serviceberry
Amelanchier pumila (Torr. & Gray) Nutt. ex M. Roemer
  dwarf serviceberry
Amelanchier utahensis Koehne
  Utah serviceberry
Amelanchier utahensis ssp. covillei (Standl.) Clokey
  Coville's serviceberry
Amelanchier utahensis ssp. utahensis Koehne
  Utah serviceberry
Amygdalus communis L.
  = Prunus dulcis
Amygdalus dulcis P. Mill.
  = Prunus dulcis
Amygdalus persica L.
  = Prunus persica
Aphanes arvensis L.
  field parsley piert
Argentina anserina (L.) Rydb.
  silverweed cinquefoil
Argentina egedii (Wormsk.) Rydb.
  Pacific silverweed
Argentina egedii ssp. egedii (Wormsk.) Rydb.
  Eged's Pacific silverweed
Aruncus dioicus (Walt.) Fern.
  bride's feathers
Aruncus dioicus var. vulgaris (Maxim.) Hara
  bride's feathers
Cercocarpus intricatus S. Wats.
  littleleaf mountain mahogany
Cercocarpus intricatus var. intricatus S. Wats.
  littleleaf mountain mahogany
Cercocarpus ledifolius Nutt.
  curlleaf mountain mahogany
Cercocarpus ledifolius var. intercedens Schneid.
  curlleaf mountain mahogany
Cercocarpus ledifolius var. intermontanus N. Holmgren
  curlleaf mountain mahogany
Cercocarpus montanus Raf.
  true mountain mahogany
Cercocarpus montanus var. blancheae (Schneid.) F.L. Martin
  island mountain mahogany
Cercocarpus montanus var. glaber (S. Wats.) F.L. Martin
  birchleaf mountain mahogany
Cercocarpus montanus var. macrourus (Rydb.) F.L. Martin
  Colorado mountain mahogany
Cercocarpus montanus var. minutiflorus (Abrams) F.L. Martin
  smooth mountain mahogany
Cercocarpus traskiae Eastw.
  Catalina Island mountain mahogany
Chamaebatia australis (Brandeg.) Abrams
  southern mountain misery
Chamaebatia foliolosa Benth.
  Sierran mountain misery
Chamaebatiaria millefolium (Torr.) Maxim.
  fernbush
Coleogyne ramosissima Torr.
  blackbrush
Comarum palustre L.
  purple marshlocks
Cotoneaster franchetii Boiss.
  orange cotoneaster
Cotoneaster pannosus Franch.
  silverleaf cotoneaster
Cowania alba Goodding
  = Purshia stansburiana
Cowania mexicana D. Don
  = Purshia mexicana
Cowania stansburiana Torr.
  = Purshia stansburiana
Crataegus columbiana T.J. Howell
  = Crataegus douglasii var. douglasii
Crataegus douglasii Lindl.
  black hawthorn
Crataegus douglasii var. douglasii Lindl.
  Douglas' hawthorn
Crataegus flabellata (Spach) Kirchn.
  fanleaf hawthorn
Duchesnea indica (Andr.) Focke
  Indian strawberry
Eriobotrya japonica (Thunb.) Lindl.
  loquat
Fallugia paradoxa (D. Don) Endl. ex Torr.
  Apacheplume
Fragaria chiloensis (L.) P. Mill.
  beach strawberry
Fragaria chiloensis ssp. pacifica Staudt
  Pacific beach strawberry
Fragaria crinita Rydb.
  Pacific strawberry
Fragaria vesca L.
  woodland strawberry
Fragaria vesca ssp. bracteata (Heller) Staudt
  woodland strawberry
Fragaria vesca ssp. californica (Cham. & Schlecht.) Staudt
  California strawberry
Fragaria virginiana Duchesne
  Virginia strawberry
Fragaria virginiana ssp. platypetala (Rydb.) Staudt
  Virginia strawberry
Geum aleppicum Jacq.
  yellow avens
Geum macrophyllum Willd.
  largeleaf avens
Geum macrophyllum var. macrophyllum Willd.
  largeleaf avens
Geum macrophyllum var. perincisum (Rydb.) Raup
  largeleaf avens
Geum triflorum Pursh
  prairiesmoke
Geum triflorum var. canescens (Greene) Kartesz & Gandhi
  old man's whiskers
Geum triflorum var. ciliatum (Pursh) Fassett
  old man's whiskers
Heteromeles arbutifolia (Lindl.) M. Roemer
  toyon
Heteromeles arbutifolia var. arbutifolia (Lindl.) M. Roemer
  toyon
Heteromeles arbutifolia var. cerina (Jepson) E. Murr.
  toyon
Heteromeles arbutifolia var. macrocarpa (Munz) Munz
  toyon
Holodiscus discolor (Pursh) Maxim.
  oceanspray
Horkelia bolanderi Gray
  border honeydew
Horkelia bolanderi ssp. bolanderi Gray
  Bolanders horkelia
Horkelia californica Cham. & Schlecht.
  California honeydew
Horkelia californica ssp. dissita (Crum) Ertter
  California honeydew
Horkelia californica ssp. frondosa (Greene) Ertter
  California honeydew
Horkelia clevelandii (Greene) Rydb.
Horkelia congesta Dougl. ex Hook.
  Sierran honeydew
Horkelia congesta ssp. nemorosa Keck
  Sierran honeydew
Horkelia cuneata Lindl.
  wedgeleaf horkelia
Horkelia cuneata ssp. cuneata Lindl.
  wedgeleaf horkelia
Horkelia cuneata ssp. puberula (Greene) Keck
  wedgeleaf horkelia
Horkelia cuneata ssp. sericea (Gray) Keck
  wedgeleaf horkelia
Horkelia daucifolia (Greene) Rydb.
  carrotleaf honeydew
Horkelia daucifolia ssp. daucifolia (Greene) Rydb.
  carrotleaf honeydew
Horkelia daucifolia ssp. latior Keck
  carrotleaf honeydew
Horkelia fusca Lindl.
  tawny horkelia
Horkelia fusca ssp. capitata (Lindl.) Keck
  bighead horkelia
Horkelia fusca ssp. parviflora (Nutt. ex Torr. & Gray) Keck
  smallflower horkelia
Horkelia fusca ssp. pseudocapitata (Rydb. ex T.J. Howell) Keck
  littlehead horkelia
Horkelia fusca ssp. tenella (S. Wats.) Keck
  pinewoods honeydew
Horkelia hendersonii T.J. Howell
  Henderson's honeydew
Horkelia hispidula Rydb.
  White Mountain honeydew
Horkelia marinensis (Elmer) Crum ex Keck
  Point Reyes horkelia
Horkelia parryi Greene
  Parry horkelia
Horkelia rydbergii Elmer
Horkelia sericata S. Wats.
  silky honeydew
Horkelia tenuiloba (Torr.) Gray
  Santa Rosa horkelia
Horkelia tridentata Torr.
  threetooth honeydew
Horkelia tridentata ssp. flavescens (Rydb.) Keck
  threetooth honeydew
Horkelia tridentata ssp. tridentata Torr.
  threetooth honeydew
Horkelia truncata Rydb.
  Ramona honeydew
Horkelia tularensis (J.T. Howell) Munz
  Kern Plateau horkelia
Horkelia wilderae Parish
  Barton Flats horkelia
Horkeliella congdonis (Rydb.) Rydb.
Horkeliella purpurascens (S. Wats.) Rydb.
Ivesia aperta (J.T. Howell) Munz
  Sierra Valley mousetail
Ivesia aperta var. aperta (J.T. Howell) Munz
  Sierra Valley mousetail
Ivesia aperta var. canina Ertter
  Sierra Valley mousetail
Ivesia argyrocoma (Rydb.) Rydb.
  silverhair mousetail
Ivesia arizonica (Eastw. ex J.T. Howell) Ertter
  rock whitefeather
Ivesia arizonica var. saxosa (Brandeg.) Ertter
  rock whitefeather
Ivesia baileyi S. Wats.
  Bailey's ivesia
Ivesia baileyi var. baileyi S. Wats.
  Bailey's ivesia
Ivesia callida (Hall) Rydb.
  Tahquitz mousetail
Ivesia campestris (M.E. Jones) Rydb.
  field mousetail
Ivesia gordonii (Hook.) Torr. & Gray
  Gordon's ivesia
Ivesia jaegeri Munz & Johnston
  Jaeger's mousetail
Ivesia kingii S. Wats.
  King's mousetail
Ivesia longibracteata Ertter
  longbract mousetail
Ivesia lycopodioides Gray
  clubmoss mousetail
Ivesia lycopodioides ssp. lycopodioides Gray
  clubmoss mousetail
Ivesia lycopodioides ssp. megalopetala (Rydb.) Keck
  clubmoss mousetail
Ivesia lycopodioides ssp. scandularis (Rydb.) Keck
  clubmoss mousetail
Ivesia muirii Gray
  granite mousetail
Ivesia paniculata T.W. & J.P. Nelson
  Ash Creek mousetail
Ivesia patellifera (J.T. Howell) Ertter
  Kingston Mountain mousetail
Ivesia pickeringii Torr. ex Gray
  silky mousetail
Ivesia purpurascens ssp. purpurascens (S. Wats.) Keck
  summit mousetail
Ivesia pygmaea Gray
  dwarf mousetail
Ivesia santolinoides Gray
  Sierran mousetail
Ivesia saxosa (J.G. & S.A. Lemmon ex Greene) Ertter
Ivesia sericoleuca (Rydb.) Rydb.
  Plumas mousetail
Ivesia shockleyi S. Wats.
  sky mousetail
Ivesia shockleyi var. shockleyi S. Wats.
  Shockley's mousetail
Ivesia unguiculata Gray
  Yosemite mousetail
Ivesia webberi Gray
  wire mousetail
Luetkea pectinata (Pursh) Kuntze
  partridgefoot
Lyonothamnus floribundus Gray
  Catalina ironwood
Lyonothamnus floribundus ssp. aspleniifolius (Greene) Raven
  Catalina ironwood
Lyonothamnus floribundus ssp. floribundus Gray
  Catalina ironwood
Malus domestica (Borkh.) Borkh.
  = Malus pumila
Malus fusca (Raf.) Schneid.
  Oregon crabapple
Malus malus (L.) Britt.
  = Malus sylvestris
Malus pumila P. Mill.
  cultivated apple
Malus sylvestris P. Mill.
  apple
Oemleria cerasiformis (Torr. & Gray ex Hook. & Arn.) Landon
  Indian plum
Osmaronia cerasiformis (Torr. & Gray ex Hook. & Arn.) Greene
  = Oemleria cerasiformis
Pentaphylloides floribunda (Pursh) A. Love
  shrubby cinquefoil
Peraphyllum ramosissimum Nutt.
  squaw apple
Petrophyton acuminatum Rydb.
  big arroyo rockmat
Petrophyton caespitosum (Nutt.) Rydb.
  mat rockspirea
Petrophyton caespitosum var. caespitosum (Nutt.) Rydb.
  Rocky Mountain rockspirea
Physocarpus alternans (M.E. Jones) J.T. Howell
  dwarf ninebark
Physocarpus alternans ssp. alternans (M.E. Jones) J.T. Howell
  dwarf ninebark
Physocarpus alternans ssp. annulatus J.T. Howell
  dwarf ninebark
Physocarpus alternans ssp. panamintensis J.T. Howell
  dwarf ninebark
Physocarpus capitatus (Pursh) Kuntze
  Pacific ninebark
Potentilla acuminata Hall
  tapertip cinquefoil
Potentilla anglica Laicharding
  English cinquefoil
Potentilla anserina L.
  = Argentina anserina
Potentilla aperta J.T. Howell
  = Ivesia aperta var. aperta
Potentilla biennis Greene
  biennial cinquefoil
Potentilla brevifolia Nutt. ex Torr. & Gray
  sparseleaf cinquefoil
Potentilla collina Wibel
  palmleaf cinquefoil
Potentilla concinna Richards.
  elegant cinquefoil
Potentilla concinna var. concinna Richards.
  red cinquefoil
Potentilla cristae Ferlatte & Strother
  crested cinquefoil
Potentilla diversifolia Lehm.
  varileaf cinquefoil
Potentilla diversifolia var. diversifolia Lehm.
  varileaf cinquefoil
Potentilla drummondii Lehm.
  Drummond's cinquefoil
Potentilla drummondii ssp. breweri (S. Wats.) Ertter
Potentilla egedii Wormsk.
  = Argentina egedii ssp. egedii
Potentilla egediina Boivin
  = Argentina egedii ssp. egedii
Potentilla eremica Coville
  = Ivesia kingii
Potentilla flabellifolia Hook. ex Torr. & Gray
  high mountain cinquefoil
Potentilla frondosa Greene
  = Horkelia californica ssp. frondosa
Potentilla fruticosa auct. non L.
  = Pentaphylloides floribunda
Potentilla glandulosa Lindl.
  gland cinquefoil
Potentilla glandulosa ssp. ashlandica (Greene) Keck
  Ashland cinquefoil
Potentilla glandulosa ssp. ewanii Keck
  Ewan's cinquefoil
Potentilla glandulosa ssp. glandulosa Lindl.
  sticky cinquefoil
Potentilla glandulosa ssp. globosa Keck
  sticky cinquefoil
Potentilla glandulosa ssp. hansenii (Greene) Keck
  Hansen's cinquefoil
Potentilla glandulosa ssp. nevadensis (S. Wats.) Keck
  Nevada cinquefoil
Potentilla glandulosa ssp. pseudorupestris (Rydb.) Keck
  sticky cinquefoil
Potentilla glandulosa ssp. reflexa (Greene) Keck
  sticky cinquefoil
Potentilla gordonii (Hook.) Greene
  = Ivesia gordonii
Potentilla gracilis Dougl. ex Hook.
  northwest cinquefoil
Potentilla gracilis var. fastigiata (Nutt.) S. Wats.
Potentilla gracilis var. flabelliformis (Lehm.) Nutt. ex Torr. & Gray
Potentilla gracilis var. gracilis Dougl. ex Hook.
  graceful cinquefoil
Potentilla grayi S. Wats.
  Gray's cinquefoil
Potentilla hickmanii Eastw.
  Hickman's cinquefoil
Potentilla marinensis (Elmer) J.T. Howell
  = Horkelia marinensis
Potentilla micheneri Greene
  = Horkelia tenuiloba
Potentilla millefolia Rydb.
  cutleaf cinquefoil
Potentilla millefolia var. klamathensis (Rydb.) Jepson
  Klamath cinquefoil
Potentilla millefolia var. millefolia Rydb.
  cutleaf cinquefoil
Potentilla newberryi Gray
  Newberry's cinquefoil
Potentilla norvegica L.
  Norwegian cinquefoil
Potentilla norvegica ssp. monspeliensis (L.) Aschers. & Graebn.
  Norwegian cinquefoil
Potentilla pacifica T.J. Howell
  = Argentina egedii ssp. egedii
Potentilla palustris (L.) Scop.
  = Comarum palustre
Potentilla patellifera J.T. Howell
  = Ivesia patellifera
Potentilla pensylvanica L.
  Pennsylvania cinquefoil
Potentilla pensylvanica var. ovium Jepson
  Pennsylvania cinquefoil
Potentilla pensylvanica var. strigosa Pallas ex Pursh
  Pennsylvania cinquefoil
Potentilla recta L.
  sulphur cinquefoil
Potentilla rimicola (Munz & Johnston) Ertter
  cinquefoil
Potentilla rivalis Nutt.
  brook cinquefoil
Potentilla rivalis var. millegrana (Engelm. ex Lehm.) S. Wats.
  brook cinquefoil
Potentilla rivalis var. rivalis Nutt.
  brook cinquefoil
Potentilla rolandii Boivin
  = Argentina egedii ssp. egedii
Potentilla saxosa J.G. & S.A. Lemmon ex Greene
  = Ivesia saxosa
Potentilla tilingii (Regel) Greene
  = Horkelia tridentata ssp. tridentata
Potentilla tularensis J.T. Howell
  = Horkelia tularensis
Potentilla wheeleri S. Wats.
  Kern cinquefoil
Potentilla wheeleri var. wheeleri S. Wats.
  Wheeler's cinquefoil
Potentilla yukonensis Hulten
  = Argentina anserina
Prunus amygdalus Batsch
  = Prunus dulcis
Prunus andersonii Gray
  desert peach
Prunus angustifolia Marsh.
  Chickasaw plum
Prunus armeniaca L.
  apricot
Prunus avium (L.) L.
  sweet cherry
Prunus caroliniana (P. Mill.) Ait.
  Carolina laurelcherry
Prunus communis (L.) Arcang.
  = Prunus dulcis
Prunus dulcis (P. Mill.) D.A. Webber
  sweet almond
Prunus emarginata (Dougl. ex Hook.) Walp.
  bitter cherry
Prunus emarginata var. emarginata (Dougl. ex Hook.) Walp.
  bitter cherry
Prunus fasciculata (Torr.) Gray
  desert almond
Prunus fasciculata var. fasciculata (Torr.) Gray
  desert almond
Prunus fasciculata var. punctata Jepson
  desert almond
Prunus fremontii S. Wats.
  desert apricot
Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr.
  hollyleaf cherry
Prunus ilicifolia ssp. lyonii (Eastw.) Raven
Prunus lusitanica L.
  Portugal laurel
Prunus mahaleb L.
  Mahaleb cherry
Prunus melanocarpa (A. Nels.) Rydb.
  = Prunus virginiana var. melanocarpa
Prunus persica (L.) Batsch
  peach
Prunus subcordata Benth.
  Klamath plum
Prunus subcordata var. kelloggii J.G. Lemmon
  Kellogg's Klamath plum
Prunus subcordata var. oregana (Greene) W. Wight ex M.E. Peck
  Oregon Klamath plum
Prunus subcordata var. rubicunda Jepson
  Klamath plum
Prunus subcordata var. subcordata Benth.
  Klamath plum
Prunus virginiana L.
  common chokecherry
Prunus virginiana var. demissa (Nutt.) Torr.
  western chokecherry
Prunus virginiana var. melanocarpa (A. Nels.) Sarg.
  black chokecherry
Purshia glandulosa Curran
  desert bitterbrush
Purshia mexicana (D. Don) Henrickson
  Mexican cliffrose
Purshia stansburiana (Torr.) Henrickson
  Stansbury cliffrose
Purshia tridentata (Pursh) DC.
  antelope bitterbrush
Pyracantha angustifolia (Franch.) Schneid.
  narrowleaf firethorn
Pyrus communis L.
  common pear
Rosa californica Cham. & Schlecht.
  California wildrose
Rosa canina L.
  dog rose
Rosa eglanteria L.
  sweetbriar rose
Rosa gymnocarpa Nutt.
  dwarf rose
Rosa gymnocarpa var. gymnocarpa Nutt.
  wood rose
Rosa gymnocarpa var. pubescens S. Wats.
  wood rose
Rosa minutifolia Engelm.
  Baja rose
Rosa nutkana K. Presl
  Nootka rose
Rosa nutkana var. muriculata (Greene) G.N. Jones
  Nootka rose
Rosa nutkana var. nutkana K. Presl
  Nootka rose
Rosa nutkana var. setosa G.N. Jones
  Nootka rose
Rosa pinetorum Heller
  pine rose
Rosa pisocarpa Gray
  cluster rose
Rosa spithamea S. Wats.
  ground rose
Rosa spithamea var. sonomensis (Greene) Jepson
  Sonoma ground rose
Rosa spithamea var. spithamea S. Wats.
  ground rose
Rosa woodsii Lindl.
  Woods' rose
Rosa woodsii var. glabrata (Parish) Cole
  Woods' rose
Rosa woodsii var. gratissima (Greene) Cole
  Tehachapi rose
Rosa woodsii var. ultramontana (S. Wats.) Jepson
  Woods' rose
Rosa woodsii var. woodsii Lindl.
  Woods' rose
Rubus aboriginum Rydb.
  garden dewberry
Rubus allegheniensis Porter
  Allegheny blackberry
Rubus allegheniensis var. allegheniensis Porter
  Allegheny blackberry
Rubus discolor Weihe & Nees
  Himalayan blackberry
Rubus glaucifolius Kellogg
  smoothleaf raspberry
Rubus glaucifolius var. ganderi (Bailey) Munz
  Gander's raspberry
Rubus glaucifolius var. glaucifolius Kellogg
  San Diego raspberry
Rubus idaeus L.
  American red raspberry
Rubus idaeus ssp. strigosus (Michx.) Focke
  grayleaf red raspberry
Rubus laciniatus Willd.
  cutleaf blackberry
Rubus lasiococcus Gray
  roughfruit berry
Rubus leucodermis Dougl. ex Torr. & Gray
  whitebark raspberry
Rubus leucodermis var. bernardinus (Greene) Jepson
  whitebark raspberry
Rubus leucodermis var. leucodermis Dougl. ex Torr. & Gray
  whitebark raspberry
Rubus leucodermis var. trinitatis Berger
  whitebark raspberry
Rubus macrophyllus Weihe & Nees
  largeleaf blackberry
Rubus nivalis Dougl. ex Hook.
  snow raspberry
Rubus parviflorus Nutt.
  thimbleberry
Rubus parviflorus var. parviflorus Nutt.
  western thimbleberry
Rubus parviflorus var. velutinus (Hook. & Arn.) Greene
  western thimbleberry
Rubus pedatus Sm.
  strawberryleaf raspberry
Rubus pensilvanicus Poir.
  Pennsylvania blackberry
Rubus spectabilis Pursh
  salmonberry
Rubus spectabilis var. franciscanus (Rydb.) J.T. Howell
  salmonberry
Rubus spectabilis var. spectabilis Pursh
  salmonberry
Rubus strigosus Michx.
  = Rubus idaeus ssp. strigosus
Rubus ulmifolius Schott
  elmleaf blackberry
Rubus ulmifolius var. inermis (Willd.) Focke
  elmleaf blackberry
Rubus ursinus Cham. & Schlecht.
  California blackberry
Rubus ursinus ssp. macropetalus (Dougl. ex Hook.) Taylor & MacBryde
  California blackberry
Rubus ursinus ssp. ursinus Cham. & Schlecht.
  California blackberry
Rubus ursinus ssp. ursinus var. sirbenus (Bailey) J.T. Howell
  California blackberry
Rubus ursinus ssp. ursinus var. ursinus Cham. & Schlecht.
  California blackberry
Rubus vitifolius Cham. & Schlecht.
  Pacific dewberry
Rubus vitifolius var. eastwoodianus (Rydb.) Munz
  Pacific dewberry
Rubus vitifolius var. titanus (Bailey) Bailey
  Pacific dewberry
Rubus vitifolius var. vitifolius Cham. & Schlecht.
  Pacific dewberry
Sanguisorba annua (Nutt. ex Hook.) Torr. & Gray
  prairie burnet
Sanguisorba minor Scop.
  small burnet
Sanguisorba minor ssp. muricata (Spach) Nordborg
  small burnet
Sanguisorba occidentalis Nutt.
  western burnet
Sanguisorba officinalis L.
  official burnet
Sibbaldia procumbens L.
  creeping sibbaldia
Sorbus aucuparia L.
  European mountainash
Sorbus californica Greene
  California mountainash
Sorbus scopulina Greene
  Greene mountainash
Sorbus scopulina var. cascadensis (G.N. Jones) C.L. Hitchc.
  Cascade mountainash
Sorbus scopulina var. scopulina Greene
  Cascade mountainash
Spiraea discolor Pursh
  = Holodiscus discolor
Spiraea douglasii Hook.
  Douglas' spirea
Spiraea douglasii var. douglasii Hook.
  rose spirea
Spiraea splendens Baumann ex K. Koch
  rose meadowsweet
Spiraea splendens var. splendens Baumann ex K. Koch
  mountain spirea

RUBIACEAE
Cephalanthus occidentalis L.
  common buttonbush
Coprosma repens A. Rich.
  creeping mirrorplant
Crucianella angustifolia L.
  narrowleaf crucianella
Galium ambiguum W. Wight
  Yolla Bolly bedstraw
Galium ambiguum ssp. ambiguum W. Wight
  Yolla Bolly bedstraw
Galium ambiguum ssp. siskiyouense (Ferris) Dempster & Stebbins
  Siskiyou bedstraw
Galium andrewsii Gray
  phloxleaf bedstraw
Galium andrewsii ssp. andrewsii Gray
  Andrews' bedstraw
Galium andrewsii ssp. gatense (Dempster) Dempster & Stebbins
  phloxleaf bedstraw
Galium andrewsii ssp. intermedium Dempster & Stebbins
  phloxleaf bedstraw
Galium angustifolium Nutt. ex Gray
  narrowleaf bedstraw
Galium angustifolium ssp. angustifolium Nutt. ex Gray
  narrowleaf bedstraw
Galium angustifolium ssp. borregoense Dempster & Stebbins
  Borrego bedstraw
Galium angustifolium ssp. foliosum (Hilend & Howell) Dempster & Stebbins
  narrowleaf bedstraw
Galium angustifolium ssp. gabrielense (Munz & Johnston) Dempster & Stebbins
  Gabriel bedstraw
Galium angustifolium ssp. gracillimum Dempster & Stebbins
  narrowleaf bedstraw
Galium angustifolium ssp. jacinticum Dempster & Stebbins
  Jacinto bedstraw
Galium angustifolium ssp. nudicaule Dempster & Stebbins
  narrowleaf bedstraw
Galium angustifolium ssp. onycense (Dempster) Dempster & Stebbins
  narrowleaf bedstraw
Galium aparine L.
  stickywilly
Galium argense Dempster & Ehrend.
  Argus bedstraw
Galium bifolium S. Wats.
  twinleaf bedstraw
Galium bolanderi Gray
  Bolander's bedstraw
Galium boreale L.
  northern bedstraw
Galium buxifolium Greene
  Santa Cruz Island bedstraw
Galium californicum Hook. & Arn.
  California bedstraw
Galium californicum ssp. californicum Hook. & Arn.
  California bedstraw
Galium californicum ssp. flaccidum (Greene) Dempster & Stebbins
  California bedstraw
Galium californicum ssp. luciense Dempster & Stebbins
  California bedstraw
Galium californicum ssp. maritimum Dempster & Stebbins
  California bedstraw
Galium californicum ssp. miguelense (Greene) Dempster & Stebbins
  Miguel bedstraw
Galium californicum ssp. primum Dempster & Stebbins
  California bedstraw
Galium californicum ssp. sierrae Dempster & Stebbins
  Sierra bedstraw
Galium catalinense Gray
  Santa Catalina bedstraw
Galium catalinense ssp. acrispum Dempster
  Santa Catalina bedstraw
Galium catalinense ssp. catalinense Gray
  Santa Catalina bedstraw
Galium clementis Eastw.
  Santa Lucia bedstraw
Galium cliftonsmithii (Dempster) Dempster & Stebbins
  Santa Barbara bedstraw
Galium divaricatum Pourret ex Lam.
  Lamarck's bedstraw
Galium glabrescens (Ehrend.) Dempster & Ehrend.
  Castle Lake bedstraw
Galium glabrescens ssp. glabrescens (Ehrend.) Dempster & Ehrend.
  Castle Lake bedstraw
Galium glabrescens ssp. modocense Dempster & Ehrend.
  Modoc bedstraw
Galium grande McClatchie
  San Gabriel bedstraw
Galium grayanum Ehrend.
  Gray's bedstraw
Galium grayanum var. grayanum Ehrend.
  Gray's bedstraw
Galium grayanum var. nanum Dempster & Ehrend.
  Gray's bedstraw
Galium hallii Munz & Johnston
  Hall's bedstraw
Galium hardhamiae Dempster
  Hardham's bedstraw
Galium hilendiae Dempster & Ehrend.
  Hilend's bedstraw
Galium hilendiae ssp. carneum (Hilend & Howell) Dempster & Ehrend.
  Hilend's bedstraw
Galium hilendiae ssp. hilendiae Dempster & Ehrend.
  Hilend's bedstraw
Galium hilendiae ssp. kingstonense (Dempster) Dempster & Ehrend.
  Hilend's bedstraw
Galium hypotrichium Gray
  alpine bedstraw
Galium hypotrichium ssp. ebbettsense Dempster & Ehrend.
  Ebbett's bedstraw
Galium hypotrichium ssp. hypotrichium Gray
  alpine bedstraw
Galium hypotrichium ssp. inyoense Dempster & Ehrend.
  Inyo bedstraw
Galium hypotrichium ssp. subalpinum (Hilend & Howell) Ehrend.
  subalpine bedstraw
Galium hypotrichium ssp. tomentellum Ehrend.
  alpine bedstraw
Galium jepsonii Hilend & Howell
  Jepson's bedstraw
Galium johnstonii Dempster & Stebbins
  Johnston's bedstraw
Galium magnifolium (Dempster) Dempster
  largeleaf bedstraw
Galium matthewsii Gray
  bushy bedstraw
Galium mexicanum Kunth
  Mexican bedstraw
Galium mexicanum ssp. asperrimum (Gray) Dempster
  Mexican bedstraw
Galium mexicanum ssp. asperulum (Gray) Dempster
  Mexican bedstraw
Galium mollugo L.
  false baby's breath
Galium multiflorum Kellogg
  shrubby bedstraw
Galium munzii Hilend & Howell
  Munz's bedstraw
Galium munzii ssp. munzii Hilend & Howell
  Munz's bedstraw
Galium murale (L.) All.
  yellow wall bedstraw
Galium muricatum W. Wight
  Humboldt bedstraw
Galium nuttallii Gray
  climbing bedstraw
Galium nuttallii ssp. insulare Ferris
  climbing bedstraw
Galium nuttallii ssp. nuttallii Gray
  climbing bedstraw
Galium oreganum Britt.
  Oregon bedstraw
Galium parishii Hilend & Howell
  Parish's bedstraw
Galium parisiense L.
  wall bedstraw
Galium porrigens Dempster
  graceful bedstraw
Galium porrigens var. porrigens Dempster
  graceful bedstraw
Galium porrigens var. tenue (Dempster) Dempster
  graceful bedstraw
Galium proliferum Gray
  limestone bedstraw
Galium serpenticum Dempster
  Intermountain bedstraw
Galium serpenticum ssp. puberulum (Piper) Dempster & Ehrend.
  Intermountain bedstraw
Galium serpenticum ssp. scotticum Dempster & Ehrend.
  Scott's bedstraw
Galium serpenticum ssp. serpenticum Dempster
  serpentine bedstraw
Galium serpenticum ssp. warnerense Dempster & Ehrend.
  Warner bedstraw
Galium sparsiflorum W. Wight
  Sequoia bedstraw
Galium sparsiflorum ssp. glabrius Dempster & Stebbins
  Sequoia bedstraw
Galium sparsiflorum ssp. sparsiflorum W. Wight
  Sequoia bedstraw
Galium spurium L.
  Marin County bedstraw
Galium stellatum Kellogg
  starry bedstraw
Galium stellatum ssp. eremicum (Hilend & Howell) Ehrend.
  starry bedstraw
Galium tricornutum Dandy
  roughfruit corn bedstraw
Galium trifidum L.
  threepetal bedstraw
Galium trifidum ssp. columbianum (Rydb.) Hulten
  threepetal bedstraw
Galium trifidum ssp. subbiflorum (Wieg.) Piper
  threepetal bedstraw
Galium triflorum Michx.
  fragrant bedstraw
Galium wrightii Gray
  Wright's bedstraw
Kelloggia galioides Torr.
  milk kelloggia
Rubia tinctoria L.
  madder
Sherardia arvensis L.
  blue fieldmadder

RUPPIACEAE
Ruppia cirrhosa (Petag.) Grande
  spiral ditchgrass
Ruppia maritima L.
  widgeongrass

RUTACEAE
Cneoridium dumosum (Nutt.) Hook. f. ex Baill.
  bush rue
Ptelea crenulata Greene
  California hoptree
Ruta chalepensis L.
  fringed rue
Ruta graveolens L.
  common rue
Thamnosma montana Torr. & Frem.
  turpentinebroom

SALICACEAE
Populus X acuminata Rydb. (pro sp.)
  lanceleaf cottonwood
Populus X inopina Eckenwalder
  populus
Populus X parryi Sarg.
  Parry's poplar
Populus alba L.
  white poplar
Populus angustifolia James
  narrowleaf cottonwood
Populus balsamifera L.
  balsam poplar
Populus balsamifera ssp. trichocarpa (Torr. & Gray ex Hook.) Brayshaw
  black cottonwood
Populus fremontii S. Wats.
  Fremont's cottonwood
Populus fremontii ssp. fremontii S. Wats.
  Fremont's cottonwood
Populus tremuloides Michx.
  quaking aspen
Salix arctica R. Br. ex Richards.
Salix babylonica L.
  weeping willow
Salix bebbiana Sarg.
  Bebb willow
Salix bonplandiana Kunth
  red willow
Salix boothii Dorn
  Booth's willow
Salix brachycarpa Nutt.
  barrenground willow
Salix breweri Bebb
  Brewer's willow
Salix commutata Bebb
  undergreen willow
Salix delnortensis Schneid.
  Del Norte willow
Salix drummondiana Barratt ex Hook.
  Drummond's willow
Salix eastwoodiae Cockerell ex Heller
  mountain willow
Salix geyeriana Anderss.
  Geyer's willow
Salix gooddingii Ball
  Goodding's willow
Salix hindsiana Benth.
  Hinds' willow
Salix hookeriana Barratt ex Hook.
  dune willow
Salix jepsonii Schneid.
  Jepson's willow
Salix lasiolepis Benth.
  arroyo willow
Salix lasiolepis var. bigelovii (Torr.) Bebb
  Bigelow's willow
Salix lasiolepis var. lasiolepis Benth.
  Tracy willow
Salix lemmonii Bebb
  Lemmon's willow
Salix ligulifolia (Ball) Ball ex Schneid.
  strapleaf willow
Salix lucida Muhl.
  shining willow
Salix lucida ssp. caudata (Nutt.) E. Murr.
  greenleaf willow
Salix lucida ssp. lasiandra (Benth.) E. Murr.
  Pacific willow
Salix lutea Nutt.
  yellow willow
Salix melanopsis Nutt.
  dusky willow
Salix myrtillifolia Anderss.
  blueberry willow
Salix myrtillifolia var. myrtillifolia Anderss.
  blueberry willow
Salix orestera Schneid.
  Sierra willow
Salix planifolia Pursh
  diamondleaf willow
Salix planifolia ssp. planifolia Pursh
  tealeaf willow
Salix prolixa Anderss.
  MacKenzie's willow
Salix reticulata L.
  netleaf willow
Salix reticulata ssp. nivalis (Hook.) A.& D. Love & Kapoor
  snow willow
Salix scouleriana Barratt ex Hook.
  Scouler's willow
Salix sessilifolia Nutt.
  northwest sandbar willow
Salix sitchensis Sanson ex Bong.
  Sitka willow

SANTALACEAE
Comandra umbellata (L.) Nutt.
  bastard toadflax
Comandra umbellata ssp. californica (Eastw. ex Rydb.) Piehl
  California bastard toadflax

SARRACENIACEAE
Darlingtonia californica Torr.
  California pitcherplant

SAURURACEAE
Anemopsis californica (Nutt.) Hook. & Arn.
  yerba mansa

SAXIFRAGACEAE
Bensoniella oregana (Abrams & Bacig.) Morton
  Oregon bensoniella
Bolandra californica Gray
  Sierran false coolwort
Boykinia major Gray
  large boykinia
Boykinia occidentalis Torr. & Gray
  coastal brookfoam
Boykinia rotundifolia Parry
  roundleaf brookfoam
Chrysosplenium glechomifolium Nutt.
  Pacific golden saxifrage
Darmera peltata (Torr. ex Benth.) Voss
  Indian rhubarb
Heuchera abramsii Rydb.
  San Gabriel alumroot
Heuchera alpestris Rosendahl, Butters & Lakela
  San Bernardino Mountain alumroot
Heuchera brevistaminea Wiggins
  Laguna Mountain alumroot
Heuchera cespitosa Eastw.
  tufted alumroot
Heuchera cylindrica Dougl. ex Hook.
  roundleaf alumroot
Heuchera cylindrica var. alpina Sw.
  alpine alumroot
Heuchera duranii Bacig.
  hard alumroot
Heuchera elegans Abrams
  urnflower alumroot
Heuchera hirsutissima Rosendahl, Butters & Lakela
  shaggyhair alumroot
Heuchera maxima Greene
  Jill of the rocks
Heuchera merriamii Eastw.
  Merriam's alumroot
Heuchera micrantha Dougl. ex Lindl.
  crevice alumroot
Heuchera micrantha var. erubescens (A. Braun & Boucho) Rosendahl
  crevice alumroot
Heuchera micrantha var. hartwegii (S. Wats. ex Wheelock) Rosendahl
  Hartweg's alumroot
Heuchera micrantha var. pacifica Rosendahl, Butters & Lakela
  Pacific alumroot
Heuchera parishii Rydb.
  Mill Creek alumroot
Heuchera pilosissima Fisch. & C.A. Mey.
  seaside alumroot
Heuchera pilosissima var. hemisphaerica (Rydb.) Rosendahl
  seaside alumroot
Heuchera pilosissima var. pilosissima Fisch. & C.A. Mey.
  seaside alumroot
Heuchera rubescens Torr.
  pink alumroot
Heuchera rubescens var. alpicola Jepson
  pink alumroot
Heuchera rubescens var. glandulosa Kellogg
  pink alumroot
Heuchera rubescens var. versicolor (Greene) M.G. Stewart
  pink alumroot
Jepsonia heterandra Eastw.
  foothill buttonsaxifrage
Jepsonia malvifolia (Greene) Small
  island buttonsaxifrage
Jepsonia parryi (Torr.) Small
  Parry's buttonsaxifrage
Lithophragma affine Gray
  common woodlandstar
Lithophragma affine ssp. affine Gray
  San Francisco woodlandstar
Lithophragma affine ssp. mixtum R.L. Taylor
  San Francisco woodlandstar
Lithophragma bolanderi Gray
  Bolander's woodlandstar
Lithophragma campanulatum T.J. Howell
  Siskiyou Mountain woodlandstar
Lithophragma cymbalaria Torr. & Gray
  mission woodlandstar
Lithophragma glabrum Nutt.
  bulbous woodlandstar
Lithophragma heterophyllum (Hook. & Arn.) Torr. & Gray
  hillside woodlandstar
Lithophragma maximum Bacig.
  San Clemente Island woodlandstar
Lithophragma parviflorum (Hook.) Nutt. ex Torr. & Gray
  smallflower woodlandstar
Lithophragma parviflorum var. parviflorum (Hook.) Nutt. ex Torr. & Gray
  smallflower woodlandstar
Lithophragma parviflorum var. trifoliatum (Eastw.) Jepson
  prairie woodlandstar
Lithophragma tenellum Nutt.
  slender woodlandstar
Mitella breweri Gray
  Brewer's miterwort
Mitella caulescens Nutt.
  slightstemmed miterwort
Mitella diversifolia Greene
  angleleaf miterwort
Mitella ovalis Greene
  coastal miterwort
Mitella pentandra Hook.
  fivestamen miterwort
Mitella trifida Graham
  threeparted miterwort
Mitella trifida var. trifida Graham
  threeparted miterwort
Parnassia californica (Gray) Greene
  California grass of Parnassus
Parnassia cirrata Piper
  San Bernardino grass of Parnassus
Parnassia fimbriata Koenig
  Rocky Mountain parnassia
Parnassia fimbriata var. fimbriata Koenig
  fringed grass of Parnassus
Parnassia parviflora DC.
  smallflower grass of Parnassus
Saxifraga aprica Greene
  Sierran saxifrage
Saxifraga bryophora Gray
  bud saxifrage
Saxifraga bryophora var. bryophora Gray
  bud saxifrage
Saxifraga californica Greene
  California saxifrage
Saxifraga cespitosa L.
  tufted alpine saxifrage
Saxifraga ferruginea Graham
  rustyhair saxifrage
Saxifraga ferruginea var. ferruginea Graham
  rustyhair saxifrage
Saxifraga howellii Greene
  Howell's saxifrage
Saxifraga integrifolia Hook.
  wholeleaf saxifrage
Saxifraga marshallii Greene
  Marshall's saxifrage
Saxifraga mertensiana Bong.
  wood saxifrage
Saxifraga nidifica Greene
  peak saxifrage
Saxifraga nidifica var. claytoniifolia (Canby ex Small) Elvander
  peak saxifrage
Saxifraga nuttallii Small
  Nuttall's saxifrage
Saxifraga odontoloma Piper
  brook saxifrage
Saxifraga oregana T.J. Howell
  Oregon saxifrage
Saxifraga rivularis L.
  weak saxifrage
Saxifraga rufidula (Small) Macoun
  rustyhair saxifrage
Saxifraga stolonifera Meerb.
  creeping saxifrage
Saxifraga tolmiei Torr. & Gray
  Tolmie's saxifrage
Saxifragopsis fragarioides (Greene) Small
  strawberry saxifrage
Suksdorfia ranunculifolia (Hook.) Engl.
  buttercup suksdorfia
Tellima grandiflora (Pursh) Dougl. ex Lindl.
  bigflower tellima
Tiarella trifoliata L.
  threeleaf foamflower
Tiarella trifoliata var. laciniata (Hook.) Wheelock
  threeleaf foamflower
Tiarella trifoliata var. unifoliata (Hook.) Kurtz
  oneleaf foamflower
Tolmiea menziesii (Pursh) Torr. & Gray
  youth on age

SCHEUCHZERIACEAE.
Scheuchzeria palustris L.
  scheuchzeria
Scheuchzeria palustris ssp. americana (Fern.) Hulten
  American scheuchzeria

SCROPHULARIACEAE
Antirrhinum majus L.
  garden snapdragon
Bacopa eisenii (Kellogg) Pennell
  Gila River waterhyssop
Bacopa monnieri (L.) Pennell
  herb of grace
Bacopa repens (Sw.) Wettst.
  creeping waterhyssop
Bacopa rotundifolia (Michx.) Wettst.
  disk waterhyssop
Bellardia trixago (L.) All.
  Mediterranean lineseed
Castilleja Mutis ex L. f.
  Indian paintbrush
Castilleja affinis Hook. & Arn.
  Indian paintbrush
Castilleja affinis ssp. affinis Hook. & Arn.
Castilleja affinis ssp. litoralis (Pennell) Chuang & Heckard
Castilleja affinis ssp. neglecta (Zeile) Chuang & Heckard
Castilleja ambigua Hook. & Arn.
  ambiguous Indian paintbrush
Castilleja ambigua ssp. ambigua Hook. & Arn.
  ambiguous Indian paintbrush
Castilleja ambigua ssp. humboldtiensis (Keck) Chuang & Heckard
  Humboldt Indian paintbrush
Castilleja ambigua ssp. insalutata (Jepson) Chuang & Heckard
  ambiguous Indian paintbrush
Castilleja angustifolia (Nutt.) G. Don
  northwestern Indian paintbrush
Castilleja applegatei Fern.
  wavyleaf Indian paintbrush
Castilleja applegatei ssp. disticha (Eastw.) Chuang & Heckard
Castilleja applegatei ssp. martinii (Abrams) Chuang & Heckard
Castilleja applegatei ssp. pallida (Eastw.) Chuang & Heckard
Castilleja applegatei ssp. pinetorum (Fern.) Chuang & Heckard
Castilleja applegatei var. applegatei Fern.
  Applegate's Indian paintbrush
Castilleja arachnoidea Greenm.
  cobwebby Indian paintbrush
Castilleja arachnoidea ssp. arachnoidea Greenm.
  cobwebby Indian paintbrush
Castilleja attenuata (Gray) Chuang & Heckard
  attenuate Indian paintbrush
Castilleja brevistyla (Hoover) Chuang & Heckard
  shortstyle Indian paintbrush
Castilleja campestris (Benth.) Chuang & Heckard
  Indian paintbrush
Castilleja campestris ssp. campestris (Benth.) Chuang & Heckard
  Indian paintbrush
Castilleja campestris ssp. succulenta (Hoover) Chuang & Heckard
  succulent Indian paintbrush
Castilleja cinerea Gray
  ashgray Indian paintbrush
Castilleja densiflora (Benth.) Chuang & Heckard
  denseflower Indian paintbrush
Castilleja densiflora ssp. densiflora (Benth.) Chuang & Heckard
  denseflower Indian paintbrush
Castilleja densiflora ssp. gracilis (Benth.) Chuang & Heckard
  denseflower Indian paintbrush
Castilleja densiflora ssp. obispoensis (Keck) Chuang & Heckard
  Obispo Indian paintbrush
Castilleja exserta (Heller) Chuang & Heckard
  exserted Indian paintbrush
Castilleja exserta ssp. exserta (Heller) Chuang & Heckard
  exserted Indian paintbrush
Castilleja exserta ssp. latifolia (S. Wats.) Chuang & Heckard
  wideleaf Indian paintbrush
Castilleja exserta ssp. venusta (Heller) Chuang & Heckard
  exserted Indian paintbrush
Castilleja foliolosa Hook. & Arn.
  Texas Indian paintbrush
Castilleja grisea Dunkle
  San Clemente Island Indian paintbrush
Castilleja hispida Benth.
  harsh Indian paintbrush
Castilleja hispida ssp. brevilobata (Piper) Chuang & Heckard
Castilleja lacera (Benth.) Chuang & Heckard
  Indian paintbrush
Castilleja lanata Gray
  Sierran woolly Indian paintbrush
Castilleja lanata ssp. hololeuca (Greene) Chuang & Heckard
Castilleja lasiorhyncha (Gray) Chuang & Heckard
  Indian paintbrush
Castilleja latifolia Hook. & Arn.
  Monterey Coast Indian paintbrush
Castilleja lemmonii Gray
  Lemmon's Indian paintbrush
Castilleja linariifolia Benth.
  Wyoming Indian paintbrush
Castilleja lineariiloba (Benth.) Chuang & Heckard
  Indian paintbrush
Castilleja martinii var. martinii Abrams
  Martin's Indian paintbrush
Castilleja mendocinensis (Eastw.) Pennell
  Mendocino Coast Indian paintbrush
Castilleja miniata Dougl. ex Hook.
  scarlet Indian paintbrush
Castilleja miniata ssp. elata (Piper) Munz
Castilleja miniata ssp. miniata Dougl. ex Hook.
Castilleja miniata var. miniata Dougl. ex Hook.
  green Indian paintbrush
Castilleja minor (Gray) Gray
  lesser Indian paintbrush
Castilleja minor ssp. minor (Gray) Gray
Castilleja minor ssp. spiralis (Jepson) Chuang & Heckard
Castilleja mollis Pennell
  softleaf Indian paintbrush
Castilleja nana Eastw.
  dwarf alpine Indian paintbrush
Castilleja parviflora Bong.
  mountain Indian paintbrush
Castilleja parviflora var. parviflora Bong.
  smallflower Indian paintbrush
Castilleja pilosa (S. Wats.) Rydb.
  parrothead Indian paintbrush
Castilleja pilosa var. longispica (A. Nels.) N. Holmgren
  longspike Indian paintbrush
Castilleja pilosa var. pilosa (S. Wats.) Rydb.
  parrothead Indian paintbrush
Castilleja plagiotoma Gray
  Mojave Indian paintbrush
Castilleja praeterita Heckard & Bacig.
  Salmon Creek Indian paintbrush
Castilleja pruinosa Fern.
  frosted Indian paintbrush
Castilleja rubicundula (Jepson) Chuang & Heckard
  Indian paintbrush
Castilleja rubicundula ssp. lithospermoides (Benth.) Chuang & Heckard
  Indian paintbrush
Castilleja schizotricha Greenm.
  splithair Indian paintbrush
Castilleja subinclusa Greene
  longleaf Indian paintbrush
Castilleja subinclusa ssp. franciscana (Pennell) Chuang & Heckard
Castilleja tenuis (Heller) Chuang & Heckard
  Indian paintbrush
Castilleja wightii ssp. wightii Elmer
  Wight's Indian paintbrush
Collinsia bartsiifolia Benth.
  white blue eyed Mary
Collinsia bartsiifolia var. bartsiifolia Benth.
  white blue eyed Mary
Collinsia bartsiifolia var. davidsonii (Parish) Newsom
  Davidson's blue eyed Mary
Collinsia bartsiifolia var. hirsuta (Kellogg) Pennell
  white blue eyed Mary
Collinsia bartsiifolia var. stricta Newsom
  white blue eyed Mary
Collinsia callosa Parish
  desertmountain blue eyed Mary
Collinsia childii Parry ex Gray
  Child's blue eyed Mary
Collinsia concolor Greene
  Chinese houses
Collinsia corymbosa Herder
  roundhead blue eyed Mary
Collinsia grandiflora Lindl.
Collinsia greenei Gray
  Greene's blue eyed Mary
Collinsia heterophylla Buist ex Graham
  harlequin blue eyed Mary
Collinsia heterophylla var. austromontana (Newsom) Munz
  harlequin blue eyed Mary
Collinsia heterophylla var. heterophylla Buist ex Graham
  harlequin blue eyed Mary
Collinsia linearis Gray
  narrowleaf blue eyed Mary
Collinsia multicolor Lindl. & Paxton
  San Francisco blue eyed Mary
Collinsia parryi Gray
  Parry's blue eyed Mary
Collinsia parviflora Lindl.
  smallflower blue eyed Mary
Collinsia parviflora var. parviflora Lindl.
  smallflower blue eyed Mary
Collinsia rattanii Gray
  sticky blue eyed Mary
Collinsia rattanii ssp. rattanii Gray
  Rattan's blue eyed Mary
Collinsia sparsiflora Fisch. & C.A. Mey.
  spinster's blue eyed Mary
Collinsia sparsiflora var. arvensis (Greene) Jepson
  spinster's blue eyed Mary
Collinsia sparsiflora var. bruceae (M.E. Jones) Newsom
  spinster's blue eyed Mary
Collinsia sparsiflora var. collina (Jepson) Newsom
  spinster's blue eyed Mary
Collinsia sparsiflora var. sparsiflora Fisch. & C.A. Mey.
  spinster's blue eyed Mary
Collinsia tinctoria Hartw. ex Benth.
  tinctureplant
Collinsia torreyi Gray
  Torrey's blue eyed Mary
Collinsia torreyi var. latifolia Newsom
  Torrey's blue eyed Mary
Collinsia torreyi var. torreyi Gray
  Torrey's blue eyed Mary
Collinsia torreyi var. wrightii (S. Wats.) I.M. Johnston
  Wright's blue eyed Mary
Cordylanthus capitatus Nutt. ex Benth.
  Yakima bird's beak
Cordylanthus eremicus (Coville & Morton) Munz
  desert bird's beak
Cordylanthus eremicus ssp. eremicus (Coville & Morton) Munz
  desert bird's beak
Cordylanthus eremicus ssp. kernensis Chuang & Heckard
  Kern bird's beak
Cordylanthus kingii S. Wats.
  King's bird's beak
Cordylanthus kingii ssp. helleri (Ferris) Chuang & Heckard
  Heller's bird's beak
Cordylanthus maritimus Nutt. ex Benth.
  saltmarsh bird's beak
Cordylanthus maritimus ssp. canescens (Gray) Chuang & Heckard
  saltmarsh bird's beak
Cordylanthus maritimus ssp. maritimus Nutt. ex Benth.
  saltmarsh bird's beak
Cordylanthus maritimus ssp. palustris (Behr) Chuang & Heckard
  saltmarsh bird's beak
Cordylanthus mollis Gray
  soft bird's beak
Cordylanthus mollis ssp. hispidus (Pennell) Chuang & Heckard
  soft bird's beak
Cordylanthus mollis ssp. mollis Gray
  soft bird's beak
Cordylanthus nevinii Gray
  Nevin's bird's beak
Cordylanthus nidularius J.T. Howell
  bird on nest
Cordylanthus orcuttianus Gray
  Orcutt's bird's beak
Cordylanthus palmatus (Ferris) J.F. Macbr.
  palmbract bird's beak
Cordylanthus parviflorus (Ferris) Wiggins
  purple bird's beak
Cordylanthus pilosus Gray
  hairy bird's beak
Cordylanthus pilosus ssp. hansenii (Ferris) Chuang & Heckard
  Hansen's bird's beak
Cordylanthus pilosus ssp. pilosus Gray
  hairy bird's beak
Cordylanthus pilosus ssp. trifidus (Robins. & Greenm.) Chuang & Heckard
  hairy bird's beak
Cordylanthus pringlei Gray
  Pringle's bird's beak
Cordylanthus ramosus Nutt. ex Benth.
  bushy bird's beak
Cordylanthus rigidus (Benth.) Jepson
  stiffbranch bird's beak
Cordylanthus rigidus ssp. brevibracteatus (Gray) Munz
  stiffbranch bird's beak
Cordylanthus rigidus ssp. littoralis (Ferris) Chuang & Heckard
  stiffbranch bird's beak
Cordylanthus rigidus ssp. rigidus (Benth.) Jepson
  stiffbranch bird's beak
Cordylanthus rigidus ssp. setigerus Chuang & Heckard
  stiffbranch bird's beak
Cordylanthus tecopensis Munz & Roos
  Tecopa bird's beak
Cordylanthus tenuis Gray
  slender bird's beak
Cordylanthus tenuis ssp. barbatus Chuang & Heckard
  slender bird's beak
Cordylanthus tenuis ssp. brunneus (Jepson) Munz
  slender bird's beak
Cordylanthus tenuis ssp. capillaris (Pennell) Chuang & Heckard
  slender bird's beak
Cordylanthus tenuis ssp. pallescens (Pennell) Chuang & Heckard
  slender bird's beak
Cordylanthus tenuis ssp. tenuis Gray
  slender bird's beak
Cordylanthus tenuis ssp. viscidus (T.J. Howell) Chuang & Heckard
  slender bird's beak
Cymbalaria muralis P.G. Gaertn., B. Mey. & Scherb.
  Kenilworth ivy
Digitalis purpurea L.
  purple foxglove
Digitalis purpurea var. purpurea L.
  purple foxglove
Diplacus aridus Abrams
  San Diego bush monkeyflower
Diplacus aurantiacus (W. Curtis) Jepson
  orange bush monkeyflower
Diplacus aurantiacus ssp. aurantiacus (W. Curtis) Jepson
  orange bush monkeyflower
Diplacus aurantiacus ssp. australis (McMinn) R.M. Beeks
  orange bush monkeyflower
Diplacus calycinus Eastw.
  Kaweah River bush monkeyflower
Diplacus clevelandii (Brandeg.) Greene
  Cleveland's bush monkeyflower
Diplacus fasciculatus (Pennell) McMinn
  Santa Lucia Mountain bush monkeyflower
Diplacus grandiflorus (Lindl.) Groenl.
  largeflower bush monkeyflower
Diplacus linearis (Benth.) Greene
  chaparral bush monkeyflower
Diplacus lompocensis McMinn
  Lompoc Mesa bush monkeyflower
Diplacus longiflorus Nutt.
  southern bush monkeyflower
Diplacus parviflorus Greene
  island bush monkeyflower
Diplacus puniceus Nutt.
  red bush monkeyflower
Diplacus rutilus (A.L. Grant) McMinn
  Santa Susana bush monkeyflower
Dopatrium junceum (Roxb.) Buch.-Ham. ex Benth.
  horsefly's eye
Gambelia speciosa Nutt.
  showy greenbright
Gratiola ebracteata Benth. ex A. DC.
  bractless hedgehyssop
Gratiola heterosepala Mason & Bacig.
  Boggs Lake hedgehyssop
Gratiola neglecta Torr.
  clammy hedgehyssop
Hebe X franciscana (Eastw.) Souster
  Francisco hebe
Hebe speciosa (R. Cunningham ex A. Cunningham) J.C. Andersen
  New Zealand hebe
Holmgrenanthe pterophila (Coville & Morton) Elisens
  rocklady
Howelliella ovata (Eastw.) Rothm.
  ovateleaf snapdragon
Keckiella antirrhinoides (Benth.) Straw
  snapdragon penstemon
Keckiella antirrhinoides ssp. antirrhinoides (Benth.) Straw
  snapdragon penstemon
Keckiella antirrhinoides ssp. microphylla (Gray) Straw
  snapdragon penstemon
Keckiella breviflora (Lindl.) Straw
  bush beardtongue
Keckiella breviflora ssp. breviflora (Lindl.) Straw
  bush beardtongue
Keckiella breviflora ssp. glabrisepala (Keck) Straw
  bush beardtongue
Keckiella cordifolia (Benth.) Straw
  heartleaf penstemon
Keckiella corymbosa (Benth. ex A. DC.) Straw
  redwood penstemon
Keckiella lemmonii (Gray) Straw
  Lemmon's penstemon
Keckiella rothrockii (Gray) Straw
  Rothrock's penstemon
Keckiella rothrockii ssp. jacintensis (Abrams) Straw
  Rothrock's penstemon
Keckiella rothrockii ssp. rothrockii (Gray) Straw
  Rothrock's penstemon
Keckiella ternata (Torr. ex Gray) Straw
  scarlet beardtongue
Keckiella ternata ssp. septentrionalis (Munz & Johnston) Straw
  scarlet beardtongue
Keckiella ternata ssp. ternata (Torr. ex Gray) Straw
  scarlet beardtongue
Kickxia elatine (L.) Dumort.
  sharpleaf cancerwort
Kickxia spuria (L.) Dumort.
  roundleaf cancerwort
Limosella acaulis Sesse & Moc.
  Owyhee mudwort
Limosella aquatica L.
  water mudwort
Limosella australis R. Br.
  Welsh mudwort
Linaria bipartita (Vent.) Willd.
  clovenlip toadflax
Linaria canadensis (L.) Chaz.
  = Nuttallanthus canadensis
Linaria dalmatica (L.) P. Mill.
  Dalmatian toadflax
Linaria dalmatica ssp. dalmatica (L.) P. Mill.
  Dalmatian toadflax
Linaria incarnata (Vent.) Spreng.
  crimson toadflax
Linaria maroccana Hook. f.
  Moroccan toadflax
Linaria pinifolia (Poir.) Thellung
  pineneedle toadflax
Linaria purpurea (L.) P. Mill.
  purple toadflax
Linaria reticulata (Sm.) Desf.
  purplenet toadflax
Linaria supina (L.) Chaz.
  lesser butter and eggs
Linaria texana Scheele
  = Nuttallanthus texanus
Lindernia dubia (L.) Pennell
  moistbank pimpernel
Lindernia dubia var. anagallidea (Michx.) Cooperrider
  yellowseed false pimpernel
Lindernia dubia var. dubia (L.) Pennell
  yellowseed false pimpernel
Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm.
  roving sailor
Mimetanthe pilosa (Benth.) Greene
  false monkeyflower
Mimulus acutidens Greene
  Kings River monkeyflower
Mimulus alsinoides Dougl. ex Benth.
  wingstem monkeyflower
Mimulus androsaceus Curran ex Greene
  rockjasmine monkeyflower
Mimulus angustatus (Gray) Gray
  purplelip pansy monkeyflower
Mimulus arenarius A.L. Grant
  sandloving monkeyflower
Mimulus barbatus Greene
  bearded monkeyflower
Mimulus bicolor Hartw. ex Benth.
  yellow and white monkeyflower
Mimulus bigelovii (Gray) Gray
  Bigelow's monkeyflower
Mimulus bigelovii var. bigelovii (Gray) Gray
  Bigelow's monkeyflower
Mimulus bigelovii var. panamintensis Munz
  Panamint monkeyflower
Mimulus biolettii Eastw.
  Hetch Hetchy monkeyflower
Mimulus bolanderi Gray
  Bolander's monkeyflower
Mimulus brachiatus Pennell
  serpentine monkeyflower
Mimulus brandegei Pennell
  Santa Cruz Island monkeyflower
Mimulus breviflorus Piper
  shortflower monkeyflower
Mimulus brevipes Benth.
  widethroat yellow monkeyflower
Mimulus breweri (Greene) Coville
  Brewer's monkeyflower
Mimulus cardinalis Dougl. ex Benth.
  crimson monkeyflower
Mimulus cleistogamus J.T. Howell
  selfing monkeyflower
Mimulus coccineus Congd.
  red monkeyflower
Mimulus congdonii B.L. Robins.
  Congdon's monkeyflower
Mimulus cusickii (Greene) Rattan
  Cusick's monkeyflower
Mimulus densus A.L. Grant
  yellow and purple monkeyflower
Mimulus dentatus Nutt. ex Benth.
  coastal monkeyflower
Mimulus diffusus A.L. Grant
  Palomar monkeyflower
Mimulus douglasii (Benth.) Gray
  brownies
Mimulus dudleyi A.L. Grant
  Dudley's monkeyflower
Mimulus exiguus Gray
  San Bernardino Mountain monkeyflower
Mimulus filicaulis S. Wats.
  slenderstem monkeyflower
Mimulus floribundus Lindl.
  manyflowered monkeyflower
Mimulus glabratus Kunth
  roundleaf monkeyflower
Mimulus glabratus var. glabratus Kunth
  roundleaf monkeyflower
Mimulus glabratus var. jamesii (Torr. & Gray ex Benth.) Gray
  James' monkeyflower
Mimulus glaucescens Greene
  shieldbract monkeyflower
Mimulus gracilipes B.L. Robins.
  slenderstalk monkeyflower
Mimulus grayi A.L. Grant
  Mariposa monkeyflower
Mimulus guttatus DC.
  seep monkeyflower
Mimulus inconspicuus Gray
  smallflower monkeyflower
Mimulus jepsonii A.L. Grant
  Jepson's monkeyflower
Mimulus johnstonii A.L. Grant
  Johnston's monkeyflower
Mimulus kelloggii (Curran ex Greene) Curran ex Gray
  Kellogg's monkeyflower
Mimulus laciniatus Gray
  cutleaf monkeyflower
Mimulus latidens (Gray) Greene
  broadtooth monkeyflower
Mimulus latifolius Gray
  broadleaf monkeyflower
Mimulus layneae (Greene) Jepson
  Layne's monkeyflower
Mimulus leptaleus Gray
  slender monkeyflower
Mimulus lewisii Pursh
  purple monkeyflower
Mimulus mephiticus Greene
  foul odor monkeyflower
Mimulus mohavensis J.G. Lemmon
  Mojave monkeyflower
Mimulus montioides Gray
  mointain monkeyflower
Mimulus moschatus Dougl. ex Lindl.
  musk monkeyflower
Mimulus moschatus var. longiflorus Gray
  muskflower
Mimulus moschatus var. moniliformis (Greene) Munz
  muskflower
Mimulus moschatus var. moschatus Dougl. ex Lindl.
  muskflower
Mimulus moschatus var. sessilifolius Gray
  muskflower
Mimulus nanus Hook. & Arn.
  dwarf purple monkeyflower
Mimulus nanus ssp. nanus Hook. & Arn.
  dwarf purple monkeyflower
Mimulus norrisii Heckard & Shevock
  Kaweah monkeyflower
Mimulus nudatus Curran ex Greene
  bare monkeyflower
Mimulus palmeri Gray
  Palmer's monkeyflower
Mimulus parishii Greene
  Parish's monkeyflower
Mimulus pictus (Curran ex Greene) Gray
  calico monkeyflower
Mimulus platycalyx Pennell
  widecalyx monkeyflower
Mimulus platylaemus Pennell
  widethroat pink monkeyflower
Mimulus primuloides Benth.
  primrose monkeyflower
Mimulus primuloides var. linearifolius A.L. Grant
  primrose monkeyflower
Mimulus primuloides var. primuloides Benth.
  primrose monkeyflower
Mimulus pulchellus (E. Drew ex Greene) A.L. Grant
  yellowlip pansy monkeyflower
Mimulus pulsiferae Gray
  candelabrum monkeyflower
Mimulus purpureus A.L. Grant
  little purple monkeyflower
Mimulus purpureus var. pauxillus A.L. Grant
  little purple monkeyflower
Mimulus purpureus var. purpureus A.L. Grant
  little purple monkeyflower
Mimulus pygmaeus A.L. Grant
  Egg Lake monkeyflower
Mimulus rattanii Gray
  Rattan's monkeyflower
Mimulus rattanii var. decurtatus (A.L. Grant) Pennell
  Rattan's monkeyflower
Mimulus rattanii var. rattanii Gray
  Rattan's monkeyflower
Mimulus rubellus Gray
  red monkeyflower
Mimulus rupicola Coville & A.L. Grant
  Death Valley monkeyflower
Mimulus shevockii Heckard & Bacig.
  Kelso Creek monkeyflower
Mimulus spissus A.L. Grant
  compact monkeyflower
Mimulus subsecundus Gray
  onesided monkeyflower
Mimulus suksdorfii Gray
  Suksdorf's monkeyflower
Mimulus tilingii Regel
  Tiling's monkeyflower
Mimulus tilingii var. tilingii Regel
  Tiling's monkeyflower
Mimulus torreyi Gray
  Torrey's monkeyflower
Mimulus traskiae A.L. Grant
  Santa Catalina monkeyflower
Mimulus tricolor Hartw. ex Lindl.
  tricolor monkeyflower
Mimulus viscidus Congd.
  sticky monkeyflower
Mimulus viscidus ssp. constrictus (A.L. Grant) Munz
  sticky monkeyflower
Mimulus viscidus ssp. viscidus Congd.
  sticky monkeyflower
Mimulus whipplei A.L. Grant
  Whipple's monkeyflower
Mimulus whitneyi Gray
  harlequin monkeyflower
Misopates orontium (L.) Raf.
  linearleaf snapdragon
Mohavea breviflora Coville
  golden desertsnapdragon
Mohavea confertiflora (A. DC.) Heller
  ghostflower
Neogaerrhinum filipes (Gray) Rothm.
  Filipes snapdragon
Neogaerrhinum strictum (Hook. & Arn.) Rothm.
  Kellog snapdragon
Nothochelone nemorosa (Dougl. ex Lindl.) Straw
  woodland beardtongue
Nuttallanthus canadensis (L.) D.A. Sutton
  Canada toadflax
Nuttallanthus texanus (Scheele) D.A. Sutton
  Texas toadflax
Orthocarpus bracteosus Benth.
  rosy owlclover
Orthocarpus castillejoides var. castillejoides Benth.
  johnnynip
Orthocarpus cuspidatus Greene
  Siskiyou Mountain owlclover
Orthocarpus cuspidatus ssp. copelandii (Eastw.) Chuang & Heckard
  Copeland's owlclover
Orthocarpus densiflorus var. densiflorus Benth.
  Sierran foothill owlclover
Orthocarpus erianthus var. erianthus Benth.
  johnnytuck
Orthocarpus faucibarbatus var. faucibarbatus Gray
  bearded owlclover
Orthocarpus imbricatus Torr. ex S. Wats.
  mountain owlclover
Orthocarpus lithospermoides var. lithospermoides Benth.
  creamsacs
Orthocarpus luteus Nutt.
  yellow owlclover
Orthocarpus pachystachyus Gray
  Shasta owlclover
Orthocarpus purpurascens var. purpurascens Benth.
  red owlclover
Parentucellia latifolia (L.) Caruel
  broadleaf glandweed
Parentucellia viscosa (L.) Caruel
  yellow glandweed
Pedicularis attollens Gray
  attol lousewort
Pedicularis attollens ssp. attollens Gray
  attoll lousewort
Pedicularis attollens ssp. protogyna Pennell
  little elephantshead
Pedicularis bracteosa Benth.
  bracted lousewort
Pedicularis bracteosa var. flavida (Pennell) Cronq.
  towering lousewort
Pedicularis contorta Benth.
  coiled lousewort
Pedicularis crenulata Benth.
  meadow lousewort
Pedicularis densiflora Benth. ex Hook.
  Indian warrior
Pedicularis densiflora ssp. aurantiaca E. Sprague
  Indian warrior
Pedicularis densiflora ssp. densiflora Benth. ex Hook.
  Indian warrior
Pedicularis dudleyi Elmer
  Dudley's lousewort
Pedicularis groenlandica Retz.
  elephanthead lousewort
Pedicularis groenlandica ssp. groenlandica Retz.
  Greenland lousewort
Pedicularis groenlandica ssp. surrecta (Benth.) Piper
  Greenland lousewort
Pedicularis howellii Gray
  Howell's lousewort
Pedicularis racemosa Dougl. ex Benth.
  sickletop lousewort
Pedicularis racemosa ssp. alba Pennell
  sickletop lousewort
Pedicularis racemosa ssp. racemosa Dougl. ex Benth.
  sickletop lousewort
Pedicularis semibarbata Gray
  bearded lousewort
Pedicularis semibarbata var. semibarbata Gray
  pinewoods lousewort
Penstemon X parishii Gray (pro sp.)
  Parish's penstemon
Penstemon albomarginatus M.E. Jones
  whitemargin beardtongue
Penstemon anguineus Eastw.
  Siskiyou beardtongue
Penstemon azureus Benth.
  azure penstemon
Penstemon azureus ssp. angustissimus (Gray) Keck
  skyblue beardtongue
Penstemon azureus ssp. azureus Benth.
  shortstalk penstemon
Penstemon barnebyi N. Holmgren
  White River Valley beardtongue
Penstemon caesius Gray
  San Bernardino beardtongue
Penstemon calcareus Brandeg.
  limestone beardtongue
Penstemon californicus (Munz & Johnston) Keck
  California penstemon
Penstemon centranthifolius Benth.
  scarlet bugler
Penstemon cinicola Keck
  ash penstemon
Penstemon clevelandii Gray
  Cleveland's beardtongue
Penstemon clevelandii ssp. clevelandii Gray
  Cleveland's beardtongue
Penstemon clevelandii ssp. connatus (Munz & Johnston) Keck
  Cleveland's beardtongue
Penstemon clevelandii ssp. mohavensis Keck
  Mojave beardtongue
Penstemon davidsonii Greene
  Davidson's penstemon
Penstemon davidsonii var. davidsonii Greene
  Davidson's penstemon
Penstemon deustus Dougl. ex Lindl.
  scabland penstemon
Penstemon deustus var. deustus Dougl. ex Lindl.
  hotrock beardtongue
Penstemon deustus var. pedicellatus M.E. Jones
  hotrock beardtongue
Penstemon eatonii Gray
  Eaton's penstemon
Penstemon eatonii ssp. eatonii Gray
  Eaton's penstemon
Penstemon eatonii ssp. undosus (M.E. Jones) Keck
  Eaton's penstemon
Penstemon filiformis (Keck) Keck
  threadleaf beardtongue
Penstemon floridus Brandeg.
  Panamint beardtongue
Penstemon floridus var. austinii (Eastw.) N. Holmgren
  Austin's beardtongue
Penstemon floridus var. floridus Brandeg.
  Panamint beardtongue
Penstemon fruticiformis Coville
  Death Valley beardtongue
Penstemon fruticiformis ssp. amargosae Keck
  Death Valley beardtongue
Penstemon fruticiformis ssp. fruticiformis Coville
  Death Valley beardtongue
Penstemon gracilentus Gray
  slender penstemon
Penstemon grinnellii Eastw.
  Grinnell's beardtongue
Penstemon grinnellii ssp. grinnellii Eastw.
  Grinnell's beardtongue
Penstemon grinnellii ssp. scrophularioides (M.E. Jones) Munz
  Grinnell's beardtongue
Penstemon heterodoxus Gray
  Sierran beardtongue
Penstemon heterodoxus ssp. heterodoxus Gray
  Sierran beardtongue
Penstemon heterodoxus var. cephalophorus (Greene) N. Holmgren
Penstemon heterodoxus var. shastensis (Keck) N. Holmgren
Penstemon heterophyllus Lindl.
  bunchleaf penstemon
Penstemon heterophyllus ssp. australis (Munz & Johnston) Keck
  foothill beardtongue
Penstemon heterophyllus ssp. heterophyllus Lindl.
  bunchleaf penstemon
Penstemon heterophyllus ssp. purdyi Keck
  Purdy's penstemon
Penstemon humilis Nutt. ex Gray
  low penstemon
Penstemon humilis ssp. humilis Nutt. ex Gray
  low beardtongue
Penstemon incertus Brandeg.
  Mojave beardtongue
Penstemon janishiae N. Holmgren
  Antelope Valley beardtongue
Penstemon labrosus (Gray) Hook. f.
  San Gabriel beardtongue
Penstemon laetus Gray
  mountain blue penstemon
Penstemon laetus ssp. laetus Gray
  western gray beardtongue
Penstemon laetus ssp. leptosepalus (Greene ex Gray) Keck
  western gray beardtongue
Penstemon laetus ssp. roezlii (Regel) Keck
  Roezl's penstemon
Penstemon laetus ssp. sagittatus Keck
  western gray beardtongue
Penstemon miser Gray
  Malheur penstemon
Penstemon monoensis Heller
  Mono penstemon
Penstemon neotericus Keck
  Plumas County beardtongue
Penstemon newberryi Gray
  mountainpride penstemon
Penstemon newberryi ssp. berryi (Eastw.) Keck
  Berry's penstemon
Penstemon newberryi ssp. newberryi Gray
  Newberry's penstemon
Penstemon newberryi ssp. sonomensis (Greene) Keck
  Sonoma penstemon
Penstemon palmeri Gray
  Palmer's penstemon
Penstemon palmeri var. palmeri Gray
  Palmer's penstemon
Penstemon papillatus J.T. Howell
  Inyo beardtongue
Penstemon patens (M.E. Jones) N. Holmgren
  Lone Pine beardtongue
Penstemon personatus Keck
  closedlip beardtongue
Penstemon procerus Dougl. ex Graham
  littleflower penstemon
Penstemon procerus var. brachyanthus (Pennell) Cronq.
  pincushion beardtongue
Penstemon procerus var. formosus (A. Nels.) Cronq.
  pincushion beardtongue
Penstemon pseudospectabilis M.E. Jones
  desert penstemon
Penstemon purpusii Brandeg.
  Snow Mountain beardtongue
Penstemon rattanii Gray
  Rattan's beardtongue
Penstemon rattanii ssp. kleei (Greene) Keck
  Klee's beardtongue
Penstemon rattanii ssp. rattanii Gray
  Rattan's beardtongue
Penstemon rostriflorus Kellogg
  Bridge penstemon
Penstemon rupicola (Piper) T.J. Howell
  cliff beardtongue
Penstemon rydbergii A. Nels.
  Rydberg's penstemon
Penstemon rydbergii var. oreocharis (Greene) N. Holmgren
  herbaceous penstemon
Penstemon scapoides Keck
  pinyon beardtongue
Penstemon speciosus Dougl. ex Lindl.
  royal penstemon
Penstemon spectabilis Thurb. ex Gray
  showy penstemon
Penstemon spectabilis ssp. spectabilis Thurb. ex Gray
  showy penstemon
Penstemon spectabilis ssp. subviscosus Keck
  showy penstemon
Penstemon stephensii Brandeg.
  Stephens' penstemon
Penstemon sudans M.E. Jones
  Susanville beardtongue
Penstemon thompsoniae (Gray) Rydb.
  Thompson's beardtongue
Penstemon thurberi Torr.
  Thurber's penstemon
Penstemon tracyi Keck
  Trinity penstemon
Penstemon utahensis Eastw.
  Utah penstemon
Penstemon venustus Dougl. ex Lindl.
  Venus penstemon
Pseudorontium cyathiferum (Benth.) Rothm.
  dogsmouth
Sairocarpus breweri (Gray) D.A. Sutton
  Brewer's snapdragon
Sairocarpus cornutus (Benth.) D.A. Sutton
  spurred toadsmouth
Sairocarpus coulterianus (Benth. ex A. DC.) D.A. Sutton
  Coulter's snapdragon
Sairocarpus kingii (S. Wats.) D.A. Sutton
  King's snapdragon
Sairocarpus multiflorus (Pennell) D.A. Sutton
  multiflora snapdragon
Sairocarpus nuttallianus (Benth. ex A. DC.) D.A. Sutton
  Nuttall's snapdragon
Sairocarpus subcordatus (Gray) D.A. Sutton
  dimorphic snapdragon
Sairocarpus vexillocalyculatus (Kellogg) D.A. Sutton
  Vexillo snapdragon
Sairocarpus virga (Gray) D.A. Sutton
  erect sanpdragon
Scrophularia atrata Pennell
  darkflowered figwort
Scrophularia californica Cham. & Schlecht.
  California figwort
Scrophularia californica ssp. californica Cham. & Schlecht.
  California figwort
Scrophularia californica ssp. floribunda (Greene) R.J. Shaw
  California figwort
Scrophularia desertorum (Munz) R.J. Shaw
  desert figwort
Scrophularia lanceolata Pursh
  lanceleaf figwort
Scrophularia villosa Pennell
  Santa Catalina figwort
Stemodia durantifolia (L.) Sw.
  whitewoolly twintip
Synthyris missurica (Raf.) Pennell
  tailed kittenstails
Synthyris missurica ssp. missurica (Raf.) Pennell
  tailed kittenstails
Synthyris reniformis (Dougl. ex Benth.) Benth.
  snowqueen
Synthyris reniformis var. cordata Gray
  snowqueen
Tonella tenella (Benth.) Heller
  lesser baby innocence
Triphysaria eriantha (Benth.) Chuang & Heckard
  triphysaria
Triphysaria eriantha ssp. eriantha (Benth.) Chuang & Heckard
  triphysaria
Triphysaria eriantha ssp. rosea (Gray) Chuang & Heckard
  triphysaria
Triphysaria floribunda (Benth.) Chuang & Heckard
  triphysaria
Triphysaria micrantha (Greene ex Heller) Chuang & Heckard
  triphysaria
Triphysaria pusilla (Benth.) Chuang & Heckard
  triphysaria
Triphysaria versicolor Fisch. & C.A. Mey.
  triphysaria
Triphysaria versicolor ssp. faucibarbatus (Gray) Chuang & Heckard
  triphysaria
Triphysaria versicolor ssp. versicolor Fisch. & C.A. Mey.
  triphysaria
Verbascum blattaria L.
  moth mullein
Verbascum speciosum Schrad.
  showy mullein
Verbascum thapsus L.
  common mullein
Verbascum virgatum Stokes
  wand mullein
Veronica americana Schwein. ex Benth.
  American speedwell
Veronica anagallis-aquatica L.
  water speedwell
Veronica arvensis L.
  corn speedwell
Veronica beccabunga L.
  European speedwell
Veronica chamaedrys L.
  germander speedwell
Veronica copelandii Eastw.
  Copeland's speedwell
Veronica cusickii Gray
  Cusick's speedwell
Veronica filiformis Sm.
  threadstalk speedwell
Veronica hederifolia L.
  ivyleaf speedwell
Veronica peregrina L.
  neckweed
Veronica peregrina ssp. xalapensis (Kunth) Pennell
  hairy purslane speedwell
Veronica persica Poir.
  birdeye speedwell
Veronica scutellata L.
  skullcap speedwell
Veronica serpyllifolia L.
  thymeleaf speedwell
Veronica serpyllifolia ssp. humifusa (Dickson) Syme
  brightblue speedwell
Veronica serpyllifolia ssp. serpyllifolia L.
  thymeleaf speedwell
Veronica triphyllos L.
  finger speedwell
Veronica wormskjoldii Roemer & J.A. Schultes
  American alpine speedwell

SELAGINELLACEAE
Selaginella asprella Maxon
  bluish spikemoss
Selaginella bigelovii Underwood
  bushy spikemoss
Selaginella cinerascens A.A. Eat.
  mesa spikemoss
Selaginella densa Rydb.
  lesser spikemoss
Selaginella densa var. scopulorum (Maxon) R. Tryon
  Rocky Mountain spikemoss
Selaginella douglasii (Hook. & Grev.) Spring
  Douglas' spikemoss
Selaginella eremophila Maxon
  desert spikemoss
Selaginella hansenii Hieron.
  Hansen's spikemoss
Selaginella kraussiana (Kunze) A. Braun
  Krauss' spikemoss
Selaginella leucobryoides Maxon
  Mojave spikemoss
Selaginella oregana D.C. Eat.
  Oregon spikemoss
Selaginella wallacei Hieron.
  Wallace's spikemoss
Selaginella watsonii Underwood
  Watson's spikemoss

SIMAROUBACEAE
Ailanthus altissima (P. Mill.) Swingle
  tree of heaven
Castela emoryi (Gray) Moran & Felger
  thorn of christ
Castela erecta Turp.
  goatbush
Castela erecta ssp. erecta Turp.
  goatbush
Holacantha emoryi Gray
  = Castela emoryi

SIMMONDSIACEAE
Simmondsia chinensis (Link) Schneid.
  jojoba

SMILACACEAE
Smilax californica (A. DC.) Gray
  California greenbrier
Smilax jamesii G. Wallace
  English Peak greenbrier

SOLANACEAE
Atropa bella-donna L.
  belladonna
Calibrachoa Llave & Lex.
  calibrachoa
Calibrachoa parviflora (Juss.) D'Arcy
  seaside petunia
Cestrum fasciculatum (Schlecht.) Miers
  early flowering jassamine
Cestrum parqui L'Her.
  Chilean flowering jassamine
Chamaesaracha coronopus (Dunal) Gray
  greenleaf five eyes
Datura discolor Bernh.
  desert thornapple
Datura ferox L.
  Chinese thornapple
Datura inoxia P. Mill.
  pricklyburr
Datura inoxia ssp. quinquecuspidata (Torr.) A.S. Barcl.
  pricklyburr
Datura meteloides DC. ex Dunal
  = Datura wrightii
Datura stramonium L.
  jimsonweed
Datura tatula L.
  = Datura stramonium
Datura wrightii Regel
  sacred thornapple
Leucophysalis nana (Gray) Averett
  dwarf chamaesaracha
Lycium andersonii Gray
  Anderson's wolfberry
Lycium andersonii var. andersonii Gray
  Anderson's wolfberry
Lycium andersonii var. deserticola (C.L. Hitchc.) C.L. Hitchc. ex Munz
  Anderson's desertthorn
Lycium barbarum L.
  matrimonyvine
Lycium californicum Nutt. ex Gray
  California desertthorn
Lycium chinense P. Mill.
  Chinese desertthorn
Lycium cooperi Gray
  Cooper's wolfberry
Lycopersicon esculentum P. Mill.
  garden tomato
Lycium fremontii Gray
  Fremont's desertthorn
Lycium hassei Greene
  Santa Catalina Island desertthorn
Lycium pallidum Miers
  pale wolfberry
Lycium parishii Gray
  Parish's desertthorn
Lycium pallidum var. oligospermum C.L. Hitchc.
  rabbit thorn
Lycium richii Gray
  Baja desertthorn
Lycium torreyi Gray
  squawthorn
Lycium verrucosum Eastw.
  San Nicholas desertthorn
Nicandra physalodes (L.) Gaertn.
  apple of Peru
Nicotiana acuminata (Graham) Hook.
  manyflower tobacco
Nicotiana acuminata var. acuminata (Graham) Hook.
  manyflower tobacco
Nicotiana acuminata var. multiflora (Phil.) Reiche
  manyflower tobacco
Nicotiana alata Link & Otto
  jasmine tobacco
Nicotiana attenuata Torr. ex S. Wats.
  coyote tobacco
Nicotiana bigelovii (Torr.) S. Wats.
  = Nicotiana quadrivalvis var. bigelovii
Nicotiana clevelandii Gray
  Cleveland's tobacco
Nicotiana glauca Graham
  tree tobacco
Nicotiana obtusifolia Mertens & Galeotti
Nicotiana obtusifolia var. obtusifolia Mertens & Galeotti
Nicotiana quadrivalvis Pursh
  Indian tobacco
Nicotiana quadrivalvis var. bigelovii (Torr.) DeWolf
  Bigelow's tobacco
Nicotiana quadrivalvis var. wallacei (Gray) Mansf.
  Wallace's tobacco
Nicotiana X sanderae hort. ex W. Wats. (pro sp.)
  Sander's tobacco
Nicotiana sylvestris Speg. & Comes
  South American tobacco
Nicotiana trigonophylla Dunal
  = Nicotiana obtusifolia var. obtusifolia
Nicotiana trigonophylla var. trigonophylla Dunal
  desert tobacco
Oryctes nevadensis S. Wats.
  Nevada oryctes
Petunia axillaris (Lam.) B.S.P.
  petunia
Physalis acutifolia (Miers) Sandw.
  sharpleaf groundcherry
Physalis angulata L.
  cutleaf groundcherry
Physalis cinerascens (Dunal) A.S. Hitchc.
  smallflower groundcherry
Physalis cinerascens var. cinerascens (Dunal) A.S. Hitchc.
  smallflower groundcherry
Physalis crassifolia Benth.
  yellow nightshade groundcherry
Physalis crassifolia var. crassifolia Benth.
  yellow nightshade groundcherry
Physalis crassifolia var. versicolor (Rydb.) Waterfall
  yellow nightshade groundcherry
Physalis hederifolia Gray
  ivyleaf groundcherry
Physalis hederifolia var. fendleri (Gray) Cronq.
  Fendler's groundcherry
Physalis hederifolia var. hederifolia Gray
  ivyleaf groundcherry
Physalis hederifolia var. palmeri (Gray) Cronq.
  Palmer's groundcherry
Physalis mollis Nutt.
  field groundcherry
Physalis mollis var. mollis Nutt.
  field groundcherry
Physalis peruviana L.
  Peruvian groundcherry
Physalis philadelphica Lam.
  Mexican groundcherry
Physalis philadelphica var. immaculata Waterfall
  Mexican groundcherry
Physalis pruinosa L.
  strawberry tomato
Physalis pubescens L.
  husk tomato
Physalis pubescens var. integrifolia (Dunal) Waterfall
  husk tomato
Physalis subulata Rydb.
  Chihuahuan groundcherry
Physalis subulata var. neomexicana (Rydb.) Waterfall ex Kartesz & Gandhi
  New Mexican groundcherry
Physalis viscosa L.
  starhair groundcherry
Quincula lobata (Torr.) Raf.
  Chinese lantern
Salpichroa origanifolia (Lam.) Baill.
  lily of the valley vine
Solanum americanum P. Mill.
  American black nightshade
Solanum aviculare G. Forst.
  New Zealand nightshade
Solanum carolinense L.
  Carolina horsenettle
Solanum carolinense var. carolinense L.
  Carolina horsenettle
Solanum dimidiatum Raf.
  western horsenettle
Solanum douglasii Dunal
  greenspot nightshade
Solanum dulcamara L.
  climbing nightshade
Solanum elaeagnifolium Cav.
  silverleaf nightshade
Solanum furcatum Dunal ex Poir.
  forked nightshade
Solanum gayanum (Remy) Phil. f.
  Chilean nightshade
Solanum lanceolatum Cav.
  orangeberry nightshade
Solanum marginatum L. f.
  purple African nightshade
Solanum mauritianum Scop.
  earleaf nightshade
Solanum nigrum L.
  black nightshade
Solanum parishii Heller
  Parish's nightshade
Solanum physalifolium Rusby
  hoe nightshade
Solanum ptychanthum Dunal
  nightshade
Solanum rostratum Dunal
  buffalobur nightshade
Solanum sarrachoides Sendtner
  nightshade
Solanum sisymbriifolium Lam.
  sticky nightshade
Solanum tenuilobatum Parish
  San Diego nightshade
Solanum triflorum Nutt.
  cutleaf nightshade
Solanum tuberosum L.
  Irish potato
Solanum umbelliferum Eschsch.
  bluewitch nightshade
Solanum umbelliferum var. glabrescens Torr.
  bluewitch
Solanum umbelliferum var. incanum Torr.
  bluewitch
Solanum umbelliferum var. umbelliferum Eschsch.
  bluewitch nightshade
Solanum wallacei (Gray) Parish
  Catalina nightshade
Solanum wallacei var. clokeyi (Munz) McMinn
  Clokey's nightshade
Solanum wallacei var. wallacei (Gray) Parish
  Wallace's nightshade
Solanum xanti Gray
  purple nightshade
Solanum xanti var. glabrescens Parish
  chaparral nightshade
Solanum xanti var. hoffmannii Munz
  Hoffmann's nightshade
Solanum xanti var. intermedium Parish
  chaparral nightshade
Solanum xanti var. montanum Munz
  chaparral nightshade
Solanum xanti var. obispoense (Eastw.) Wiggins
  San Luis Obispo nightshade
Solanum xanti var. xanti Gray
  Xant's nightshade

SPHENOCLEACEAE
Sphenoclea zeylanica Gaertn.
  sphenoclea

STAPHYLEACEAE
Staphylea bolanderi Gray
  Sierran bladdernut

STERCULIACEAE
Ayenia compacta Rose
  California ayenia
Brachychiton populneum (Schott) R. Br.
  brachychiton
Fremontia .
  = Fremontodendron 
Fremontodendron californicum (Torr.) Coville
  California flannelbush
Fremontodendron decumbens R. Lloyd
  California flannelbush
Fremontodendron mexicanum A. Davids.
  Mexican flannelbush

STYRACACEAE
Styrax officinalis L.
  drug snowbell
Styrax officinalis var. fulvescens (Eastw.) Munz & Johnston
  drug snowbell
Styrax officinalis var. officinalis L.
  drug snowbell
Styrax officinalis var. redivivus (Torr.) Howard
  drug snowbell

TAMARICACEAE
Tamarix africana Poir.
  African tamarisk
Tamarix aphylla (L.) Karst.
  Athel tamarisk
Tamarix aralensis Bunge
  Russian tamarisk
Tamarix chinensis Lour.
  fivestamen tamarisk
Tamarix gallica L.
  French tamarisk
Tamarix parviflora DC.
  smallflower tamarisk
Tamarix ramosissima Ledeb.
  saltcedar

TAXACEAE
Taxus brevifolia Nutt.
  Pacific yew
Torreya californica Torr.
  California nutmeg

TAXODIACEAE
Sequoia sempervirens (Lamb. ex D. Don) Endl.
  redwood
Sequoiadendron giganteum (Lindl.) Buchh.
  giant sequoia

THYMELAEACEAE
Dirca occidentalis Gray
  western leatherwood

TROPAEOLACEAE
Tropaeolum majus L.
  garden nasturtium

TYPHACEAE
Typha X glauca Godr. (pro sp.)
  white cattail
Typha angustifolia L.
  narrowleaf cattail
Typha domingensis Pers.
  southern cattail
Typha latifolia L.
  broadleaf cattail

ULMACEAE
Celtis laevigata Willd.
  sugarberry
Celtis laevigata var. reticulata (Torr.) L. Benson
  netleaf hackberry
Ulmus minor P. Mill.
  smoothleaf elm
Ulmus parvifolia Jacq.
  Chinese elm
Ulmus pumila L.
  Siberian elm

UMBELLIFERAE
Ammi majus L.
  large bullwort
Ammi visnaga (L.) Lam.
  toothpickweed
Ammoselinum giganteum Coult. & Rose
  western sandparsley
Anethum graveolens L.
  dill
Angelica arguta Nutt.
  Lyall's angelica
Angelica breweri Gray
  Brewer's angelica
Angelica callii Mathias & Constance
  Call's angelica
Angelica californica Jepson
  California angelica
Angelica genuflexa Nutt.
  kneeling angelica
Angelica hendersonii Coult. & Rose
  Henderson's angelica
Angelica kingii (S. Wats.) Coult. & Rose
  King's angelica
Angelica lineariloba Gray
  poison angelica
Angelica lucida L.
  wild celery
Angelica tomentosa S. Wats.
  woolly angelica
Angelica tomentosa var. tomentosa S. Wats.
  woolly angelica
Anthriscus caucalis Bieb.
  burr chervil
Apiastrum angustifolium Nutt.
  mock parsley
Apium graveolens L.
  wild celery
Apium prostratum Labill.
  prostrate marshwort
Berula erecta (Huds.) Coville
  cutleaf waterparsnip
Bowlesia incana Ruiz & Pavon
  hoary bowlesia
Bupleurum lancifolium Hornem.
  lanceleaf thorow wax
Ciclospermum leptophyllum (Pers.) Sprague ex Britt. & Wilson
  marsh parsley
Cicuta douglasii (DC.) Coult. & Rose
  western water hemlock
Cicuta maculata L.
  spotted water hemlock
Cicuta maculata var. bolanderi (S. Wats.) Mulligan
Conioselinum gmelinii (Cham. & Schlecht.) Steud.
  Pacific hemlockparsley
Conium maculatum L.
  poison hemlock
Coriandrum sativum L.
  Chinese parsley
Cymopterus aboriginum M.E. Jones
  Indian springparsley
Cymopterus cinerarius Gray
  gray springparsley
Cymopterus deserticola Brandeg.
  desert springparsley
Cymopterus gilmanii Morton
  Gilman's springparsley
Cymopterus globosus (S. Wats.) S. Wats.
  globe springparsley
Cymopterus multinervatus (Coult. & Rose) Tidestrom
  purplenerve springparsley
Cymopterus panamintensis Coult. & Rose
  Panamint springparsley
Cymopterus panamintensis var. acutifolius (Coult. & Rose) Munz
  Panamint springparsley
Cymopterus panamintensis var. panamintensis Coult. & Rose
  Panamint springparsley
Cymopterus purpurascens (Gray) M.E. Jones
  widewing springparsley
Cymopterus ripleyi Barneby
  Ripley's springparsley
Daucus carota L.
  Queen Anne's lace
Daucus pusillus Michx.
  American wild carrot
Eryngium alismifolium Greene
  Modoc eryngo
Eryngium aristulatum Jepson
  California eryngo
Eryngium armatum (S. Wats.) Coult. & Rose
  coastal eryngo
Eryngium articulatum Hook.
  beethistle
Eryngium aristulatum var. aristulatum Jepson
  California eryngo
Eryngium aristulatum var. hooveri Sheikh
  Hoover's eryngo
Eryngium aristulatum var. parishii (Coult. & Rose) Mathias & Constance
  Parish's eryngo
Eryngium castrense Jepson
  Great Valley eryngo
Eryngium constancei Sheikh
  Loch Lomond eryngo
Eryngium mathiasiae Sheikh
  Mathias' eryngo
Eryngium pinnatisectum Jepson
  Tuolumne eryngo
Eryngium racemosum Jepson
  delta eryngo
Eryngium spinosepalum Mathias
  spinysepal eryngo
Eryngium vaseyi Coult. & Rose
  coyotethistle
Falcaria vulgaris Bernh.
  sickleweed
Foeniculum vulgare P. Mill.
  sweet fennel
Glehnia littoralis F. Schmidt ex Miq.
  American silvertop
Glehnia littoralis ssp. leiocarpa (Mathias) Hulten
  American silvertop
Heracleum lanatum Michx.
  = Heracleum maximum
Heracleum maximum Bartr.
  common cowparsnip
Heracleum sphondylium var. lanatum (Michx.) Dorn
  = Heracleum maximum
Hydrocotyle ranunculoides L. f.
  floating marshpennywort
Hydrocotyle sibthorpioides Lam.
  lawn marshpennywort
Hydrocotyle umbellata L.
  manyflower marshpennywort
Hydrocotyle verticillata Thunb.
  whorled marshpennywort
Hydrocotyle verticillata var. triradiata (A. Rich.) Fern.
  whorled marshpennywort
Hydrocotyle verticillata var. verticillata Thunb.
  whorled marshpennywort
Leptotaenia dissecta Nutt.
  = Lomatium dissectum var. dissectum
Leptotaenia multifida Nutt.
  = Lomatium dissectum var. multifidum
Ligusticum apiifolium (Nutt. ex Torr. & Gray) Gray
  celeryleaf licoriceroot
Ligusticum californicum Coult. & Rose
  California licoriceroot
Ligusticum grayi Coult. & Rose
  Gray's licoriceroot
Lilaeopsis masonii Mathias & Constance
  mudflat quillplant
Lilaeopsis occidentalis Coult. & Rose
  western grasswort
Lomatium bicolor (S. Wats.) Coult. & Rose
  Wasatch desertparsley
Lomatium bicolor var. leptocarpum (Torr. & Gray) Schlessman
  Wasatch desertparsley
Lomatium californicum (Nutt.) Mathias & Constance
  California lomatium
Lomatium canbyi (Coult. & Rose) Coult. & Rose
  Canby's biscuitroot
Lomatium caruifolium (Hook. & Arn.) Coult. & Rose
  alkali desertparsley
Lomatium caruifolium var. caruifolium (Hook. & Arn.) Coult. & Rose
  alkali desertparsley
Lomatium caruifolium var. denticulatum (Jepson) Jepson
  alkali desertparsley
Lomatium ciliolatum Jepson
  Yolla Bolly biscuitroot
Lomatium ciliolatum var. ciliolatum Jepson
  Yolla Bolly biscuitroot
Lomatium ciliolatum var. hooveri Mathias & Constance
  Hoover's biscuitroot
Lomatium congdonii Coult. & Rose
  Mariposa desertparsley
Lomatium dasycarpum (Torr. & Gray) Coult. & Rose
  woollyfruit desertparsley
Lomatium dasycarpum ssp. dasycarpum (Torr. & Gray) Coult. & Rose
  woollyfruit desertparsley
Lomatium dasycarpum ssp. tomentosum (Benth.) Theobald
  woollyfruit desertparsley
Lomatium dissectum (Nutt.) Mathias & Constance
  fernleaf buscuitroot
Lomatium dissectum var. dissectum (Nutt.) Mathias & Constance
  fernleaf biscuitroot
Lomatium dissectum var. multifidum (Nutt.) Mathias & Constance
  carrotleaf biscuitroot
Lomatium engelmannii Mathias
  Engelmann's desertparsley
Lomatium foeniculaceum (Nutt.) Coult. & Rose
  desert biscuitroot
Lomatium foeniculaceum ssp. fimbriatum Theobald
  desert biscuitroot
Lomatium foeniculaceum ssp. inyoense (Mathias & Constance ex Munz & Roos) Theobald
  Inyo biscuitroot
Lomatium foeniculaceum ssp. macdougalii (Coult. & Rose) Theobald
  Macdougal's biscuitroot
Lomatium gormanii (T.J. Howell) Coult. & Rose
  Gorman's biscuitroot
Lomatium howellii (S. Wats.) Jepson
  Howell's biscuitroot
Lomatium insulare (Eastw.) Munz
  San Nicholas biscuitroot
Lomatium lucidum (Nutt. ex Torr. & Gray) Jepson
  shiny biscuitroot
Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose
  bigseed biscuitroot
Lomatium marginatum (Benth.) Coult. & Rose
  butte desertparsley
Lomatium martindalei (Coult. & Rose) Coult. & Rose
  cascade desertparsley
Lomatium marginatum var. marginatum (Benth.) Coult. & Rose
  butte desertparsley
Lomatium marginatum var. purpureum Jepson
  butte desertparsley
Lomatium mohavense (Coult. & Rose) Coult. & Rose
  Mojave desertparsley
Lomatium mohavense ssp. longilobum Theobald
  Mojave desertparsley
Lomatium mohavense ssp. mohavense (Coult. & Rose) Coult. & Rose
  Mojave desertparsley
Lomatium nevadense (S. Wats.) Coult. & Rose
  Nevada biscuitroot
Lomatium nevadense var. nevadense (S. Wats.) Coult. & Rose
  Nevada biscuitroot
Lomatium nevadense var. parishii (Coult. & Rose) Jepson
  Parish's biscuitroot
Lomatium nudicaule (Pursh) Coult. & Rose
  barestem biscuitroot
Lomatium parryi (S. Wats.) J.F. Macbr.
  Utah desertparsley
Lomatium parvifolium (Hook. & Arn.) Jepson
  coastal biscuitroot
Lomatium peckianum Mathias & Constance
  Peck's desertparsley
Lomatium piperi Coult. & Rose
  Indian biscuitroot
Lomatium plummerae (Coult. & Rose) Coult. & Rose
  Plummer's desertparsley
Lomatium plummerae var. plummerae (Coult. & Rose) Coult. & Rose
  Plummer's desertparsley
Lomatium plummerae var. sonnei (Coult. & Rose) Jepson
  Sonn's desertparsley
Lomatium ravenii Mathias & Constance
  Lassen parsley
Lomatium repostum (Jepson) Mathias
  Napa biscuitroot
Lomatium rigidum (M.E. Jones) Jepson
  Big Pine biscuitroot
Lomatium shevockii Hartman & Constance
  Owens Peak desertparsley
Lomatium stebbinsii Schlessman & Constance
  Stebbins' desertparsley
Lomatium torreyi (Coult. & Rose) Coult. & Rose
  Sierran biscuitroot
Lomatium tracyi Mathias & Constance
  Tracy's desertparsley
Lomatium triternatum (Pursh) Coult. & Rose
  nineleaf biscuitroot
Lomatium triternatum var. anomalum (M.E. Jones ex Coult. & Rose) Mathias
  broadnineleaf biscuitroot
Lomatium triternatum var. macrocarpum (Coult. & Rose) Mathias
  nineleaf biscuitroot
Lomatium triternatum var. triternatum (Pursh) Coult. & Rose
  nineleaf biscuitroot
Lomatium utriculatum (Nutt. ex Torr. & Gray) Coult. & Rose
  common lomatium
Lomatium vaginatum Coult. & Rose
  broadsheath desertparsley
Oenanthe pimpinelloides L.
  corkyfruit waterdropwort
Oenanthe sarmentosa K. Presl ex DC.
  water parsely
Oreonana clementis (M.E. Jones) Jepson
  pygmy mountainparsley
Oreonana purpurascens Shevock & Constance
  purple mountainparsley
Oreonana vestita (S. Wats.) Jepson
  woolly mountainparsley
Orogenia fusiformis S. Wats.
  California Indian potato
Osmorhiza chilensis Hook. & Arn.
  = Osmorhiza berteroi
Osmorhiza depauperata Phil.
  bluntseed sweetroot
Osmorhiza occidentalis (Nutt. ex Torr. & Gray) Torr.
  western sweetroot
Osmorhiza purpurea (Coult. & Rose) Suksdorf
  purple sweetroot
Oxypolis occidentalis Coult. & Rose
  western cowbane
Pastinaca sativa L.
  wild parsnip
Perideridia bacigalupii Chuang & Constance
  Mother Lode yampah
Perideridia bolanderi (Gray) A. Nels. & J.F. Macbr.
  Bolander's yampah
Perideridia bolanderi ssp. bolanderi (Gray) A. Nels. & J.F. Macbr.
  Bolander's yampah
Perideridia bolanderi ssp. involucrata Chuang & Constance
  Bolander's yampah
Perideridia californica (Torr.) A. Nels. & J.F. Macbr.
  California yampah
Perideridia gairdneri (Hook. & Arn.) Mathias
  yampa
Perideridia gairdneri ssp. borealis Chuang & Constance
  common yampah
Perideridia gairdneri ssp. gairdneri (Hook. & Arn.) Mathias
  Gairdner's yampah
Perideridia howellii (Coult. & Rose) Mathias
  Howell's yampah
Perideridia kelloggii (Gray) Mathias
  Kellogg's yampah
Perideridia lemmonii (Coult. & Rose) Chuang & Constance
  Lemmon's yampah
Perideridia leptocarpa Chuang & Constance
  narrowseed yampah
Perideridia oregana (S. Wats.) Mathias
  squaw potato
Perideridia parishii (Coult. & Rose) A. Nels. & J.F. Macbr.
  Parish's yampah
Perideridia parishii ssp. latifolia (Gray) Chuang & Constance
  Parish's yampah
Perideridia parishii ssp. parishii (Coult. & Rose) A. Nels. & J.F. Macbr.
  Parish's yampah
Perideridia pringlei (Coult. & Rose) A. Nels. & J.F. Macbr.
  adobe yampah
Petroselinum crispum (P. Mill.) Nyman ex A.W. Hill
  parsley
Podistera nevadensis (Gray) S. Wats.
  Nevada podistera
Pteryxia petraea (M.E. Jones) Coult. & Rose
  rockloving desertparsley
Pteryxia terebinthina (Hook.) Coult. & Rose
  smoothshore springparsley
Pteryxia terebinthina var. californica (Coult. & Rose) Mathias
  California wavewing
Sanicula arguta Greene ex Coult. & Rose
  sharptooth blacksnakeroot
Sanicula arctopoides Hook. & Arn.
  footsteps of spring
Sanicula bipinnata Hook. & Arn.
  poison sanicle
Sanicula bipinnatifida Dougl. ex Hook.
  purple sanicle
Sanicula crassicaulis Poepp. ex DC.
  Pacific blacksnakeroot
Sanicula crassicaulis var. crassicaulis Poepp. ex DC.
  Pacific blacksnakeroot
Sanicula crassicaulis var. tripartita (Suksdorf) H. Wolff
  Pacific blacksnakeroot
Sanicula graveolens Poepp. ex DC.
  northern sanicle
Sanicula hoffmannii (Munz) Shan & Constance (pro hyb.)
  Hoffmann's blacksnakeroot
Sanicula laciniata Hook. & Arn.
  coastal blacksnakeroot
Sanicula maritima Kellogg ex S. Wats.
  adobe snakeroot
Sanicula peckiana J.F. Macbr.
  Peck's blacksnakeroot
Sanicula saxatilis Greene
  devil's blacksnakeroot
Sanicula tracyi Shan & Constance
  Tracy's blacksnakeroot
Sanicula tuberosa Torr.
  turkey pea
Scandix pecten-veneris L.
  shepherdsneedle
Sium suave Walt.
  hemlock waterparsnip
Sphenosciadium capitellatum Gray
  woollyhead parsnip
Spermolepis echinata (Nutt. ex DC.) Heller
  bristly scaleseed
Tauschia arguta (Torr. & Gray) J.F. Macbr.
  southern umbrellawort
Tauschia glauca (Coult. & Rose) Mathias & Constance
  glaucous umbrellawort
Tauschia hartwegii (Gray) J.F. Macbr.
  Hartweg's umbrellawort
Tauschia howellii (Coult. & Rose) J.F. Macbr.
  Howell's umbrellawort
Tauschia kelloggii (Gray) J.F. Macbr.
  Kellogg's umbrellawort
Tauschia parishii (Coult. & Rose) J.F. Macbr.
  Parish's umbrellawort
Torilis arvensis (Huds.) Link
  spreading hedgeparsley
Torilis nodosa (L.) Gaertn.
  knotted hedgeparsley
Yabea microcarpa (Hook. & Arn.) K.-Pol.
  falsecarrot

URTICACEAE
Hesperocnide tenella Torr.
  western stingingnettle
Parietaria floridana Nutt.
  Florida pellitory
Parietaria hespera Hinton
  rillita pellitory
Parietaria hespera var. californica Hinton
  California pellitory
Parietaria hespera var. hespera Hinton
  rillita pellitory
Parietaria pensylvanica Muhl. ex Willd.
  Pennsylvania pellitory
Soleirolia soleirolii (Req.) Dandy
  mother of thousands
Urtica dioica L.
  stinging nettle
Urtica dioica ssp. gracilis (Ait.) Seland.
  California nettle
Urtica dioica ssp. holosericea (Nutt.) Thorne
  stinging nettle
Urtica gracilis Ait.
  = Urtica dioica ssp. gracilis
Urtica urens L.
  dwarf nettle

VALERIANACEAE
Centranthus ruber (L.) DC.
  red valerian
Plectritis ciliosa (Greene) Jepson
  longspur seablush
Plectritis ciliosa ssp. ciliosa (Greene) Jepson
  longspur seablush
Plectritis ciliosa ssp. insignis (Suksdorf) Morey
  longspur seablush
Plectritis congesta (Lindl.) DC.
  shortspur seablush
Plectritis congesta ssp. brachystemon (Fisch. & C.A. Mey.) Morey
  shortspur seablush
Plectritis congesta ssp. congesta (Lindl.) DC.
  shortspur seablush
Plectritis congesta ssp. nitida (Heller) Morey
  shortspur seablush
Plectritis macrocera Torr. & Gray
  longhorn plectritis
Plectritis macrocera ssp. grayi (Suksdorf) Morey
  Gray's seablush
Plectritis macrocera ssp. macrocera Torr. & Gray
  white seablush
Valeriana acutiloba var. glabra (Jepson) Cronq.
  = Valeriana californica
Valeriana californica Heller
  California valerian
Valeriana occidentalis Heller
  western valerian
Valeriana scouleri Rydb.
  Scouler's valerian
Valeriana sitchensis Bong.
  Sitka valerian
Valerianella carinata Loisel.
  European cornsalad
Valerianella locusta (L.) Lat.
  Lewiston cornsalad

VERBENACEAE
Aloysia wrightii Heller ex Abrams
  Wright's beebrush
Avicennia marina (Forsk.) Vierh.
  avicennia
Avicennia marina var. resinifera (G. Forst.) Bakh.
  resinous avicennia
Glandularia gooddingii (Briq.) Solbrig
  southwestern mock vervain
Glandularia pulchella (Sweet) Troncoso
  South American mock vervain
Glandularia tenera (Spreng.) Cabrera
  mock vervain
Lantana camara L.
  lantana
Lantana montevidensis (Spreng.) Briq.
  trailing shrubverbena
Lippia wrightii Gray ex Torr.
  = Aloysia wrightii
Phyla lanceolata (Michx.) Greene
  lanceleaf fogfruit
Phyla nodiflora (L.) Greene
  turkey tangle fogfruit
Verbena abramsii Moldenke
  San Bernardino vervain
Verbena arizonica Briq.
  = Glandularia gooddingii
Verbena bonariensis L.
  purpletop vervain
Verbena bracteata Lag. & Rodr.
  bigbract verbena
Verbena brasiliensis Vell.
  Brazilian vervain
Verbena californica Moldenke
  Red Hills vervain
Verbena X clemensiorum Moldenke
  Amador County vervain
Verbena gooddingii Briq.
  = Glandularia gooddingii
Verbena hastata L.
  swamp verbena
Verbena hastata var. hastata L.
  swamp verbena
Verbena hastata var. scabra Moldenke
  swamp verbena
Verbena lasiostachys Link
  western vervain
Verbena lasiostachys var. lasiostachys Link
  western vervain
Verbena lasiostachys var. scabrida Moldenke
Verbena litoralis Kunth
  seashore vervain
Verbena menthifolia Benth.
  mint vervain
Verbena officinalis L.
  herb of the cross
Verbena pulchella Sweet
  = Glandularia pulchella
Verbena rigida Spreng.
  tuberous vervain
Verbena scabra Vahl
  sandpaper vervain
Verbena tenera Spreng.
  = Glandularia tenera
Verbena tenuisecta Briq.
  = Glandularia pulchella
Verbena verna A. Nels.
  = Glandularia gooddingii
Vitex agnus-castus L.
  lilac chastetree

VIOLACEAE
Viola adunca Sm.
  hookedspur violet
Viola adunca var. adunca Sm.
  hookedspur violet
Viola adunca var. kirkii Duran
  Kirk's violet
Viola adunca var. oxyceras (S. Wats.) S. Wats. ex Jepson
  hookedspur violet
Viola arvensis Murr.
  field pansy
Viola bakeri Greene
  Baker's violet
Viola beckwithii Torr. & Gray
  Beckwith's violet
Viola beckwithii ssp. beckwithii Torr. & Gray
  Beckwith's violet
Viola beckwithii ssp. glabrata M.S. Baker
  western pansy
Viola californica M.S. Baker
  California violet
Viola cuneata S. Wats.
  wedgeleaf violet
Viola douglasii Steud.
  Douglas' golden violet
Viola glabella Nutt.
  pioneer violet
Viola hallii Gray
  Oregon violet
Viola lanceolata L.
  bog white violet
Viola lanceolata ssp. occidentalis (Gray) Russell
  bog white violet
Viola lobata Benth.
  moosehorn violet
Viola lobata ssp. integrifolia (S. Wats.) R.J. Little
  moosehorn violet
Viola lobata var. lobata Benth.
  moosehorn violet
Viola macloskeyi Lloyd
  small white violet
Viola macloskeyi ssp. macloskeyi Lloyd
  Macloskey's violet
Viola macloskeyi ssp. pallens (Banks ex DC.) M.S. Baker
  smooth white violet
Viola ocellata Torr. & Gray
  pinto violet
Viola odorata L.
  sweet violet
Viola palustris L.
  marsh violet
Viola palustris var. palustris L.
  marsh violet
Viola pedunculata Torr. & Gray
  California golden violet
Viola pedunculata ssp. pedunculata Torr. & Gray
  California golden violet
Viola pedunculata ssp. tenuifolia M.S. Baker & J.C. Clausen
  California golden violet
Viola pinetorum Greene
  goosefoot yellow violet
Viola praemorsa Dougl. ex Lindl.
  canary violet
Viola praemorsa ssp. linguifolia (Nutt.) M.S. Baker & J.C. Clausen ex M.E. Peck
  upland yellow violet
Viola praemorsa ssp. praemorsa Dougl. ex Lindl.
  canary violet
Viola psychodes Greene
  butterfly violet
Viola purpurea Kellogg
  goosefoot violet
Viola purpurea ssp. aurea (Kellogg) J.C. Clausen
  goosefoot yellow violet
Viola purpurea ssp. dimorpha M.S. Baker & J.C. Clausen
  goosefoot violet
Viola purpurea ssp. geophyta M.S. Baker & J.C. Clausen
  goosefoot violet
Viola purpurea ssp. integrifolia M.S. Baker & J.C. Clausen
  goosefoot violet
Viola purpurea ssp. mesophyta M.S. Baker & J.C. Clausen
  goosefoot violet
Viola purpurea ssp. mohavensis (M.S. Baker & J.C. Clausen ex Blake) J.C. Clausen
  Mojave yellow violet
Viola purpurea ssp. purpurea Kellogg
  goosefoot violet
Viola purpurea ssp. quercetorum (M.S. Baker & J.C. Clausen) R.J. Little
  goosefoot yellow violet
Viola purpurea ssp. venosa (S. Wats.) M.S. Baker & J.C. Clausen
  goosefoot yellow violet
Viola sempervirens Greene
  evergreen violet
Viola sheltonii Torr.
  Shelton's violet
Viola sororia Willd.
  common blue violet
Viola tomentosa M.S. Baker & J.C. Clausen
  feltleaf violet
Viola tricolor L.
  johnny jumpup
Viola vallicola A. Nels.
  valley violet
Viola vallicola var. major (Hook.) Fabijan
  valley violet

VISCACEAE
Arceuthobium abietinum Engelm. ex Munz
  fir dwarf mistletoe
Arceuthobium americanum Nutt. ex Engelm.
  American dwarf mistletoe
Arceuthobium blumeri A. Nels.
  southwestern white pine dwarf mistletoe
Arceuthobium californicum Hawksworth & Wiens
  sugar pine dwarf mistletoe
Arceuthobium campylopodum Engelm.
  western dwarf mistletoe
Arceuthobium cyanocarpum (A. Nels. ex Rydb.) A. Nels.
  limber pine dwarf mistletoe
Arceuthobium divaricatum Engelm.
  pinyon dwarf mistletoe
Arceuthobium douglasii Engelm.
  Douglas fir dwarf mistletoe
Arceuthobium microcarpum (Engelm.) Hawksworth & Wiens
  western spruce dwarf mistletoe
Arceuthobium occidentale Engelm.
  digger pine dwarf mistletoe
Arceuthobium tsugense (Rosendahl) G.N. Jones
  hemlock dwarf mistletoe
Phoradendron bolleanum (Seem.) Eichl.
  Bollean mistletoe
Phoradendron californicum Nutt.
  mesquite mistletoe
Phoradendron densum Torr. ex Trel.
Phoradendron juniperinum Engelm.
  juniper mistletoe
Phoradendron juniperinum ssp. juniperinum Engelm.
  juniper mistletoe
Phoradendron libocedri (Engelm.) T.J. Howell
Phoradendron macrophyllum (Engelm.) Cockerell
  Colorado Desert mistletoe
Phoradendron macrophyllum ssp. macrophyllum (Engelm.) Cockerell
  Colorado Desert mistletoe
Phoradendron pauciflorum Torr.
Phoradendron villosum (Nutt.) Nutt.
  Pacific mistletoe
Phoradendron villosum ssp. villosum (Nutt.) Nutt.
  Pacific mistletoe
Viscum album L.
  European mistletoe

VITACEAE
Ampelopsis quinquefolia (L.) Michx.
  = Parthenocissus quinquefolia var. quinquefolia
Parthenocissus quinquefolia (L.) Planch.
  Virginia creeper
Parthenocissus quinquefolia var. quinquefolia (L.) Planch.
  Virginia creeper
Vitis californica Benth.
  California wild grape
Vitis girdiana Munson
  valley grape
Vitis vinifera L.
  domestic grape

ZANNICHELLIACEAE
Zannichellia palustris L.
  horned pondweed

ZOSTERACEAE
Phyllospadix scouleri Hook.
  Scouler's surfgrass
Phyllospadix torreyi S. Wats.
  Torrey's surfgrass
Zostera marina L.
  seawrack
Zostera marina var. latifolia Morong
  seawrack
Zostera marina var. marina L.
  seawrack

ZYGOPHYLLACEAE
Fagonia laevis Standl.
  California fagonbush
Fagonia pachyacantha Rydb.
  sticky fagonbush
Kallstroemia californica (S. Wats.) Vail
  California caltrop
Kallstroemia grandiflora Torr. ex Gray
  Arizona poppy
Kallstroemia parviflora J.B.S. Norton
  warty caltrop
Larrea tridentata (Sesse & Moc. ex DC.) Coville
  creosotebush
Larrea tridentata var. arenaria L. Benson
  creosotebush
Larrea tridentata var. tridentata (Sesse & Moc. ex DC.) Coville
  creosotebush
Tribulus terrestris L.
  puncturevine
Zygophyllum fabago L.
  Syrian beancaper