Checklist of the vascular plants of UTAH (excluding grasses and their allies) ACERACEAE Acer campestre L. hedge maple Acer circinatum Pursh vine maple Acer ginnala Maxim. Amur maple Acer glabrum Torr. Rocky Mountain maple Acer grandidentatum Nutt. bigtooth maple Acer negundo L. boxelder Acer negundo var. interius (Britt.) Sarg. boxelder maple Acer palmatum Thunb. Japanese maple Acer platanoides L. Norway maple Acer rubrum L. red maple Acer saccharinum L. silver maple Acer saccharum Marsh. sugar maple ADOXACEAE Adoxa moschatellina L. muskroot AGAVACEAE Agave utahensis Engelm. Utah agave Nolina bigelovii (Torr.) S. Wats. Bigelow's nolina Nolina microcarpa S. Wats. sacahuista Yucca angustissima Engelm. ex Trel. narrowleaf yucca Yucca angustissima var. angustissima Engelm. ex Trel. fineleaf yucca Yucca angustissima var. kanabensis (McKelvey) Reveal Kanab yucca Yucca angustissima var. toftiae (Welsh) Reveal Toft's yucca Yucca baccata Torr. banana yucca Yucca baccata var. baccata Torr. banana yucca Yucca baccata var. brevifolia (Schott ex Torr.) L. Benson & Darrow Spanish dagger Yucca baileyi Woot. & Standl. Navajo yucca Yucca brevifolia Engelm. Joshua tree Yucca elata (Engelm.) Engelm. soaptree yucca Yucca elata var. utahensis (McKelvey) Reveal Utah yucca Yucca harrimaniae Trel. Spanish bayonet Yucca schidigera Roezl ex Ortgies Mojave yucca AIZOACEAE Sesuvium verrucosum Raf. verrucose seapurslane Trianthema portulacastrum L. desert horsepurslane ALISMATACEAE Alisma gramineum Lej. narrowleaf water plantain Alisma triviale Pursh northern water plantain Echinodorus berteroi (Spreng.) Fassett upright burrhead Sagittaria cuneata Sheldon arumleaf arrowhead AMARANTHACEAE Amaranthus acanthochiton Sauer greenstripe Amaranthus albus L. prostrate pigweed Amaranthus blitoides S. Wats. mat amaranth Amaranthus blitum L. purple amaranth Amaranthus californicus (Moq.) S. Wats. California amaranth Amaranthus cruentus L. red amaranth Amaranthus fimbriatus (Torr.) Benth. ex S. Wats. fringed amaranth Amaranthus palmeri S. Wats. carelessweed Amaranthus powellii S. Wats. Powell's amaranth Amaranthus retroflexus L. redroot amaranth Tidestromia lanuginosa (Nutt.) Standl. woolly tidestromia Tidestromia oblongifolia (S. Wats.) Standl. Arizona honeysweet ANACARDIACEAE Cotinus coggygria Scop. European smoketree Rhus glabra L. smooth sumac Rhus hirta (L.) Sudworth staghorn sumac Rhus trilobata Nutt. skunkbush sumac Toxicodendron P. Mill. poison oak Toxicodendron rydbergii (Small ex Rydb.) Greene western poison ivy APOCYNACEAE Amsonia eastwoodiana Rydb. Eastwood's bluestar Amsonia jonesii Woods. Jones' bluestar Amsonia tomentosa Torr. & Frem. woolly bluestar Apocynum X floribundum Greene (pro sp.) intermediate dogbane Apocynum androsaemifolium L. spreading dogbane Apocynum cannabinum L. Indianhemp Cycladenia humilis Benth. Sacramento waxydogbane Nerium oleander L. oleander Vinca major L. bigleaf periwinkle Vinca minor L. common periwinkle ARALIACEAE Aralia racemosa L. American spikenard ASCLEPIADACEAE Asclepias asperula (Dcne.) Woods. spider milkweed, inmortal Asclepias cryptoceras S. Wats. pallid milkweed Asclepias curassavica L. bloodflower Asclepias cutleri Woods. Cutler's milkweed Asclepias erosa Torr. desert milkweed Asclepias fascicularis Dcne. Mexican whorled milkweed Asclepias hallii Gray Hall's milkweed Asclepias incarnata L. swamp milkweed Asclepias involucrata Engelm. ex Torr. dwarf milkweed Asclepias labriformis M.E. Jones Utah milkweed Asclepias latifolia (Torr.) Raf. broadleaf milkweed Asclepias macrosperma Eastw. largeseed milkweed Asclepias rusbyi (Vail) Woods. Rusby's milkweed Asclepias speciosa Torr. showy milkweed Asclepias subverticillata (Gray) Vail whorled milkweed Asclepias tuberosa L. butterfly milkweed Asclepias uncialis Greene wheel milkweed Asclepias welshii N.& P. Holmgren Welsh's milkweed Cynanchum utahense (Engelm.) Woods. Utah swallowwort Sarcostemma cynanchoides Dcne. fringed twinevine ASPLENIACEAE Asplenium adiantum-nigrum L. black spleenwort Asplenium resiliens Kunze blackstem spleenwort Asplenium septentrionale (L.) Hoffmann forked spleenwort Asplenium trichomanes L. maidenhair spleenwort Asplenium trichomanes-ramosum L. brightgreen spleenwort AZOLLACEAE Azolla mexicana Schlecht. & Cham. ex K. Presl Mexican azolla BERBERIDACEAE Berberis aquifolium Pursh = Mahonia aquifolium Berberis fendleri Gray Colorado barberry Berberis fremontii Torr. = Mahonia fremontii Mahonia aquifolium (Pursh) Nutt. hollyleaved barberry Mahonia fremontii (Torr.) Fedde Fremont's mahonia Mahonia repens (Lindl.) G. Don Oregongrape BETULACEAE Alnus incana (L.) Moench mountain alder Alnus incana ssp. tenuifolia (Nutt.) Breitung thinleaf alder Betula nana L. bog birch Betula occidentalis Hook. water birch Ostrya knowltonii Coville Knowlton's hophornbeam BIGNONIACEAE Campsis radicans (L.) Seem. ex Bureau trumpet creeper Catalpa bignonioides Walt. southern catalpa Catalpa ovata G. Don Chinese catalpa Catalpa speciosa (Warder) Warder ex Engelm. northern catalpa Chilopsis linearis (Cav.) Sweet desert willow BORAGINACEAE Amsinckia menziesii (Lehm.) A. Nels. & J.F. Macbr. Menzies' fiddleneck Amsinckia tessellata Gray bristly fiddleneck Anchusa azurea P. Mill. Italian bugloss Anchusa officinalis L. common bugloss Asperugo procumbens L. madwort Borago officinalis L. common borage Buglossoides arvensis (L.) I.M. Johnston corn gromwell Cryptantha abata I.M. Johnston dentnut catseye Cryptantha affinis (Gray) Greene quill catseye Cryptantha ambigua (Gray) Greene basin catseye Cryptantha angustifolia (Torr.) Greene Panamint catseye Cryptantha bakeri (Greene) Payson Baker's catseye Cryptantha barbigera (Gray) Greene bearded catseye Cryptantha barnebyi I.M. Johnston oilshale catseye Cryptantha breviflora (Osterhout) Payson Uinta basin catseye Cryptantha caespitosa (A. Nels.) Payson tufted catseye Cryptantha capitata (Eastw.) I.M. Johnston capitate catseye Cryptantha cinerea (Greene) Cronq. James' catseye Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston cushion catseye Cryptantha compacta Higgins compact catseye Cryptantha confertiflora (Greene) Payson basin yellow catseye Cryptantha crassisepala (Torr. & Gray) Greene thicksepal catseye Cryptantha creutzfeldtii Welsh Creutzfeldt's catseye Cryptantha dumetorum (Greene ex Gray) Greene bushloving catseye Cryptantha elata (Eastw.) Payson cliffdweller's catseye Cryptantha fendleri (Gray) Greene sanddune catseye Cryptantha flava (A. Nels.) Payson Brenda's yellow catseye Cryptantha flavoculata (A. Nels.) Payson roughseed catseye Cryptantha fulvocanescens (S. Wats.) Payson tawny catseye Cryptantha gracilis Osterhout narrowstem catseye Cryptantha grahamii I.M. Johnston fragrant catseye Cryptantha holoptera (Gray) J.F. Macbr. winged catseye Cryptantha humilis (Gray) Payson roundspike catseye Cryptantha interrupta (Greene) Payson Elko catseye Cryptantha johnstonii Higgins Johnston's catseye Cryptantha jonesiana (Payson) Payson San Rafael catseye Cryptantha kelseyana Greene Kelsey's catseye Cryptantha longiflora (A. Nels.) Payson longflower catseye Cryptantha mensana (M.E. Jones) Payson southwestern catseye Cryptantha micrantha (Torr.) I.M. Johnston redroot catseye Cryptantha nevadensis A. Nels. & Kennedy Nevada catseye Cryptantha ochroleuca Higgins yellowwhite catseye Cryptantha osterhoutii (Payson) Payson Osterhout's catseye Cryptantha paradoxa (A. Nels.) Payson handsome catseye Cryptantha pterocarya (Torr.) Greene wingnut catseye Cryptantha racemosa (S. Wats.) Greene bushy catseye Cryptantha recurvata Coville curvenut catseye Cryptantha rollinsii I.M. Johnston Rollins' catseye Cryptantha rugulosa (Payson) Payson wrinkled catseye Cryptantha scoparia A. Nels. Pinyon Desert catseye Cryptantha semiglabra Barneby smooth catseye Cryptantha sericea (Gray) Payson silky catseye Cryptantha setosissima (Gray) Payson bristly catseye Cryptantha stricta (Osterhout) Payson Yampa River catseye Cryptantha tenuis (Eastw.) Payson canyon catseye Cryptantha torreyana (Gray) Greene Torrey's catseye Cryptantha utahensis (Gray) Greene scented catseye Cryptantha virginensis (M.E. Jones) Payson Virgin River catseye Cryptantha watsonii (Gray) Greene Watson's catseye Cryptantha wetherillii (Eastw.) Payson Wetherill's catseye Cynoglossum officinale L. gypsyflower Echium vulgare L. common vipersbugloss Eritrichium Schrad. ex Gaudin alpine forget me not Eritrichium nanum (Vill.) Schrad. ex Gaudin arctic alpine forget me not Hackelia floribunda (Lehm.) I.M. Johnston manyflower stickseed Hackelia ibapensis L.& J. Shultz Ibapah tickweed Hackelia micrantha (Eastw.) J.L. Gentry Jessica sticktight Hackelia patens (Nutt.) I.M. Johnston common stickseed Heliotropium convolvulaceum (Nutt.) Gray phlox heliotrope Heliotropium curassavicum L. salt heliotrope Lappula occidentalis (S. Wats.) Greene flatspine stickseed Lithospermum arvense L. = Buglossoides arvensis Lithospermum incisum Lehm. narrowleaf gromwell Lithospermum multiflorum Torr. ex Gray manyflowered gromwell Lithospermum ruderale Dougl. ex Lehm. western gromwell Mertensia arizonica Greene aspen bluebells Mertensia brevistyla S. Wats. shortstyle bluebells Mertensia ciliata (James ex Torr.) G. Don mountain bluebells Mertensia franciscana Heller Franciscan bluebells Mertensia fusiformis Greene spindleroot bluebells Mertensia lanceolata (Pursh) DC. lanceleaf bluebells Mertensia oblongifolia (Nutt.) G. Don oblongleaf bluebells Myosotis scorpioides L. true forget me not Myosotis stricta Link ex Roemer & J.A. Schultes strict forget me not Pectocarya heterocarpa (I.M. Johnston) I.M. Johnston chuckwalla combseed Pectocarya platycarpa (Munz & Johnston) Munz & Johnston broadfruit combseed Pectocarya recurvata I.M. Johnston curvenut combseed Pectocarya setosa Gray moth combseed Plagiobothrys Fisch. & C.A. Mey. popcornflower Plagiobothrys arizonicus (Gray) Greene ex Gray Arizona popcornflower Plagiobothrys jonesii Gray Mojave popcornflower Plagiobothrys leptocladus (Greene) I.M. Johnston finebranched popcornflower Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston Scouler's popcornflower Plagiobothrys tenellus (Nutt. ex Hook.) Gray Pacific popcornflower Tiquilia canescens (DC.) A. Richards. woody crinklemat Tiquilia latior (I.M. Johnston) A. Richards. matted crinklemat Tiquilia nuttallii (Hook.) A. Richards. Nuttall's coldenia BUDDLEJACEAE Buddleja davidii Franch. orange eye butterflybush Buddleja utahensis Coville Utah butterflybush CACTACEAE Echinocactus polycephalus Engelm. & Bigelow cottontop cactus Echinocereus coccineus Engelm. scarlet hedgehog cactus Echinocereus engelmannii (Parry ex Engelm.) Lem. saints cactus Echinocereus triglochidiatus Engelm. kingcup cactus Escobaria missouriensis (Sweet) D.R. Hunt Missouri foxtail cactus Escobaria vivipara (Nutt.) Buxbaum spinystar Ferocactus cylindraceus (Engelm.) Orcutt California barrelcactus Mammillaria tetrancistra Engelm. common fishhook cactus Opuntia acanthocarpa Engelm. & Bigelow buckhorn cholla Opuntia basilaris Engelm. & Bigelow beavertail pricklypear Opuntia basilaris var. aurea (E.M. Baxter) W.T. Marsh. golden pricklypear Opuntia basilaris var. basilaris Engelm. & Bigelow beavertail pricklypear Opuntia basilaris var. heilii Welsh & Neese Heil's beavertail pricklypear Opuntia chlorotica Engelm. & Bigelow dollarjoint pricklypear Opuntia echinocarpa Engelm. & Bigelow staghorn cholla Opuntia engelmannii Salm-Dyck cactus apple Opuntia erinacea Engelm. & Bigelow ex Engelm. grizzlybear pricklypear Opuntia fragilis (Nutt.) Haw. brittle pricklypear Opuntia littoralis (Engelm.) Cockerell coastal pricklypear Opuntia macrorhiza Engelm. twistspine pricklypear Opuntia nicholii L. Benson Navajo Bridge pricklypear Opuntia phaeacantha Engelm. tulip pricklypear Opuntia polyacantha Haw. plains pricklypear Opuntia pulchella Engelm. sagebrush cholla Opuntia whipplei Engelm. & Bigelow Whipple cholla Pediocactus despainii Welsh & Goodrich Despain's pincushion cactus Pediocactus sileri (Engelm.) L. Benson Siler's pincushion cactus Pediocactus simpsonii (Engelm.) Britt. & Rose Simpson hedgehog cactus Pediocactus winkleri Heil Winkler's pincushion cactus Sclerocactus glaucus (J.A. Purpus ex K. Schum.) L. Benson Uinta Basin hookless cactus Sclerocactus johnsonii (Parry ex Engelm.) N.P. Taylor Johnson's fishhook cactus Sclerocactus pubispinus (Engelm.) L. Benson Great Basin fishhook cactus Sclerocactus spinosior (Engelm.) Woodruff & L. Benson desert valley fishhook cactus Sclerocactus whipplei (Engelm. & Bigelow) Britt. & Rose Whipple's fishhook cactus Sclerocactus wrightiae L. Benson Wright's fishhook cactus CALLITRICHACEAE Callitriche hermaphroditica L. northern waterstarwort Callitriche heterophylla Pursh larger waterstarwort Callitriche palustris L. CAMPANULACEAE Campanula parryi Gray Parry's bellflower Campanula rotundifolia L. bluebell bellflower Campanula uniflora L. arctic bellflower Downingia laeta (Greene) Greene Great Basin calicoflower Lobelia cardinalis L. cardinalflower Nemacladus glanduliferus Jepson glandular threadplant Porterella carnosula (Hook. & Arn.) Torr. fleshy porterella Triodanis perfoliata (L.) Nieuwl. clasping Venus' lookingglass CANNABACEAE Cannabis sativa L. marijuana Humulus americanus Nutt. = Humulus lupulus var. lupuloides Humulus lupulus L. common hop Humulus lupulus var. lupuloides E. Small American hop CAPPARACEAE Cleome lutea Hook. yellow spiderflower Cleome serrulata Pursh Rocky Mountain beeplant Cleomella palmeriana M.E. Jones Rocky Mountain stickweed Cleomella plocasperma S. Wats. twisted cleomella Polanisia dodecandra (L.) DC. roughseed clammyweed CAPRIFOLIACEAE Linnaea borealis L. twinflower Lonicera involucrata Banks ex Spreng. twinberry honeysuckle Lonicera tatarica L. Tatarian honeysuckle Lonicera utahensis S. Wats. Utah honeysuckle Sambucus nigra L. European black elder Sambucus racemosa L. Symphoricarpos albus (L.) Blake common snowberry Symphoricarpos longiflorus Gray desert snowberry Symphoricarpos occidentalis Hook. western snowberry Symphoricarpos orbiculatus Moench coralberry Symphoricarpos oreophilus Gray whortleleaf snowberry CARYOPHYLLACEAE Achyronychia cooperi Torr. & Gray onyxflower Arenaria aculeata S. Wats. prickly sandwort Arenaria congesta Nutt. ballhead sandwort Arenaria congesta var. congesta Nutt. ballhead sandwort Arenaria eastwoodiae Rydb. Eastwood's sandwort Arenaria fendleri Gray Fendler's sandwort Arenaria hookeri Nutt. Hooker's sandwort Arenaria lanuginosa (Michx.) Rohrb. spreading sandwort Arenaria macradenia S. Wats. Mojave sandwort Arenaria serpyllifolia L. thymeleaf sandwort Cerastium arvense L. field chickweed Cerastium beeringianum Cham. & Schlecht. Bering chickweed Cerastium fontanum Baumg. common chickweed Cerastium nutans Raf. nodding chickweed Dianthus armeria L. Deptford pink Dianthus barbatus L. sweetwilliam Gypsophila paniculata L. babysbreath gypsophila Gypsophila scorzonerifolia Ser. garden babysbreath Herniaria glabra L. smooth rupturewort Holosteum umbellatum L. jagged chickweed Loeflingia squarrosa Nutt. spreading pygmyleaf Minuartia filiorum (Maguire) McNeill threadbranch stitchwort Minuartia nuttallii (Pax) Briq. Nuttall's sandwort Minuartia obtusiloba (Rydb.) House twinflower sandwort Minuartia pusilla (S. Wats.) Mattf. annual sandwort Minuartia rossii (R. Br. ex Richards.) Graebn. Ross' sandwort Minuartia rubella (Wahlenb.) Hiern beautiful sandwort Moehringia lateriflora (L.) Fenzl bluntleaf sandwort Paronychia chartacea Fern. paper nailwort Paronychia pulvinata Gray Rocky Mountain nailwort Paronychia sessiliflora Nutt. creeping nailwort Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartman tuber starwort Sagina procumbens L. birdeye pearlwort Sagina saginoides (L.) Karst. arctic pearlwort Saponaria officinalis L. bouncingbet Silene acaulis (L.) Jacq. moss campion Silene antirrhina L. sleepy silene Silene armeria L. sweet William silene Silene douglasii Hook. Douglas's campion Silene drummondii Hook. Drummond's campion Silene kingii (S. Wats.) Bocquet King's campion Silene latifolia Poir. bladder campion Silene menziesii Hook. Menzies' campion Silene noctiflora L. nightflowering silene Silene oregana S. Wats. Oregon silene Silene petersonii Maguire plateau catchfly Silene scouleri Hook. Scouler's campion Silene uralensis (Rupr.) Bocquet apetalous catchfly Silene verecunda S. Wats. San Francisco campion Silene vulgaris (Moench) Garcke maidenstears Spergularia rubra (L.) J.& K. Presl red sandspurry Spergularia salina J.& K. Presl salt sandspurry Stellaria calycantha (Ledeb.) Bong. northern starwort Stellaria longifolia Muhl. ex Willd. longleaf starwort Stellaria 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 CELASTRACEAE Mortonia scabrella Gray = Mortonia sempervirens ssp. scabrella Mortonia sempervirens Gray Rio Grande saddlebush Mortonia sempervirens ssp. scabrella (Gray) Prigge Rio Grande saddlebush 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 Atriplex argentea Nutt. silverscale saltbush Atriplex canescens (Pursh) Nutt. fourwing saltbush Atriplex confertifolia (Torr. & Frem.) S. Wats. shadscale saltbush Atriplex corrugata S. Wats. mat saltbush Atriplex elegans (Moq.) D. Dietr. wheelscale saltbush Atriplex falcata (M.E. Jones) Standl. sickle saltbush Atriplex gardneri (Moq.) D. Dietr. Gardner's saltbush Atriplex garrettii Rydb. Garrett's saltbush Atriplex graciliflora M.E. Jones slenderflower saltbush Atriplex hortensis L. garden orache Atriplex hymenelytra (Torr.) S. Wats. desertholly Atriplex lentiformis (Torr.) S. Wats. big saltbush Atriplex obovata Moq. mound saltbush Atriplex patula L. spear saltbush Atriplex powellii S. Wats. Powell's saltweed Atriplex prostrata Boucher ex DC. triangle orache Atriplex rosea L. tumbling saltweed Atriplex saccaria S. Wats. sack saltbush Atriplex semibaccata R. Br. Australian saltbush Atriplex torreyi (S. Wats.) S. Wats. Torrey's saltbush Atriplex tridentata Kuntze basin saltbush Atriplex truncata (Torr. ex S. Wats.) Gray wedgescale saltbush Atriplex welshii C.A. Hanson Welsh's saltbush Atriplex wolfii S. Wats. Wolf's saltweed Bassia hyssopifolia (Pallas) Kuntz fivehorn smotherweed Chenopodium album L. lambsquarters Chenopodium ambrosioides L. Mexican tea Chenopodium atrovirens Rydb. pinyon goosefoot Chenopodium berlandieri Moq. pitseed goosefoot Chenopodium botrys L. Jerusalem oak Chenopodium capitatum (L.) Ambrosi blite goosefoot Chenopodium desiccatum A. Nels. aridland goosefoot Chenopodium foliosum (Moench) Aschers. leafy goosefoot Chenopodium fremontii S. Wats. Fremont's goosefoot Chenopodium glaucum L. oakleaf goosefoot Chenopodium incanum (S. Wats.) Heller mealy goosefoot Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. narrowleaf goosefoot Chenopodium murale L. nettleleaf goosefoot Chenopodium rubrum L. red goosefoot Chenopodium simplex (Torr.) Raf. mapleleaf goosefoot Corispermum orientale Lam. oriental 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 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 Nitrophila occidentalis (Moq.) S. Wats. western miterwort Proatriplex pleiantha (W.A. Weber) Stutz & Chu Mancos shadscale Salicornia maritima Wolff & Jefferies slender grasswort Salicornia virginica L. Virginia glasswort Salsola kali L. prickly Russian thistle Salsola paulsenii Litv. barbwire Russian thistle Sarcobatus vermiculatus (Hook.) Torr. greasewood Sarcocornia utahensis (Tidestrom) A.J. Scott Utah swampfire Suaeda calceoliformis (Hook.) Moq. Pursh seepweed Suaeda moquinii (Torr.) Greene Mojave seablite Zuckia brandegei (Gray) Welsh & Stutz ex Welsh siltbush Zuckia brandegei var. arizonica (Standl.) Welsh Arizona siltbush CLUSIACEAE Hypericum anagalloides Cham. & Schlecht. trailing St. Johnswort Hypericum formosum ssp. scouleri (Hook.) C.L. Hitchc. = Hypericum scouleri ssp. scouleri Hypericum scouleri Hook. Scouler's St. Johnswort Hypericum scouleri ssp. scouleri Hook. Scouler's St. Johnswort COMMELINACEAE Tradescantia occidentalis (Britt.) Smyth prairie spiderwort COMPOSITAE Acamptopappus sphaerocephalus (Harvey & Gray ex Gray) Gray rayless goldenhead Achillea filipendulina Lam. fernleaf yarrow Achillea millefolium L. common yarrow Acourtia wrightii (Gray) Reveal & King brownfoot Acroptilon repens (L.) DC. hardheads Adenophyllum cooperi (Gray) Strother Cooper's dogweed Ageratina herbacea (Gray) King & H.E. Robins. fragrant snakeroot Ageratina occidentalis (Hook.) King & H.E. Robins. western snakeroot Agoseris aurantiaca (Hook.) Greene orange agoseris Agoseris glauca (Pursh) Raf. pale agoseris Agoseris grandiflora (Nutt.) Greene bigflower agoseris Agoseris heterophylla (Nutt.) Greene annual agoseris Agoseris retrorsa (Benth.) Greene spearleaf agoseris Almutaster pauciflorus (Nutt.) A.& D. Love Amberboa moschata (L.) DC. sweetsultan Ambrosia acanthicarpa Hook. flatspine burr ragweed Ambrosia artemisiifolia L. annual ragweed Ambrosia dumosa (Gray) Payne white burrobush Ambrosia eriocentra (Gray) Payne woolly fruit burr ragweed Ambrosia psilostachya DC. Cuman ragweed Ambrosia tomentosa Nutt. skeletonleaf burr ragweed Ambrosia trifida L. great ragweed Amphipappus fremontii Torr. & Gray Fremont's chaffbush Anaphalis margaritacea (L.) Benth. & Hook. f. western pearlyeverlasting Antennaria alpina (L.) Gaertn. alpine pussytoes Antennaria anaphaloides Rydb. pearly pussytoes Antennaria corymbosa E. Nels. flattop pussytoes Antennaria dimorpha (Nutt.) Torr. & Gray low pussytoes Antennaria luzuloides Torr. & Gray rush pussytoes Antennaria marginata Greene whitemargin pussytoes Antennaria media Greene Rocky Mountain pussytoes Antennaria microphylla Rydb. littleleaf pussytoes Antennaria neglecta Greene field pussytoes Antennaria parvifolia Nutt. smallleaf pussytoes Antennaria pulcherrima (Hook.) Greene showy pussytoes Antennaria rosulata Rydb. Kaibab pussytoes Antennaria umbrinella Rydb. umber pussytoes Anthemis cotula L. stinking chamomile Anthemis tinctoria L. golden chamomile Antheropeas lanosum (Gray) Rydb. white easterbonnets Antheropeas wallacei (Gray) Rydb. woolly easterbonnets Arctium minus Bernh. lesser burrdock Arnica X diversifolia Greene (pro sp.) rayless arnica Arnica chamissonis Less. chamisso arnica Arnica cordifolia Hook. heartleaf arnica Arnica fulgens Pursh foothill arnica Arnica latifolia Bong. broadleaf arnica Arnica longifolia D.C. Eat. spearleaf arnica Arnica mollis Hook. hairy arnica Arnica parryi Gray Parry's arnica Arnica rydbergii Greene Rydberg's arnica Arnica sororia Greene twin arnica Artemisia abrotanum L. southernwood Artemisia absinthium L. absinth sagewort Artemisia annua L. sweet annie Artemisia arbuscula Nutt. low sagebrush Artemisia arctica Less. boreal sagebrush Artemisia biennis Willd. biennial wormwood Artemisia bigelovii Gray Bigelow's sagebrush Artemisia campestris L. field sagewort Artemisia cana Pursh silver sagebrush Artemisia carruthii Wood ex Carruth. Carruth's sagewort Artemisia dracunculus L. Russian tarragon Artemisia filifolia Torr. sand sagebrush Artemisia frigida Willd. fringed sagewort Artemisia lindleyana Bess. northwest sagebrush Artemisia ludoviciana Nutt. Louisiana sagewort Artemisia michauxiana Bess. Michaux's sagebrush Artemisia norvegica Fries Norway sagewort Artemisia nova A. Nels. black sagebrush Artemisia parryi Gray Parry's wormwood Artemisia pygmaea Gray pygmy sagebrush Artemisia scopulorum Gray alpine sagebrush Artemisia spinescens D.C. Eat. bud sagebrush Artemisia tridentata Nutt. big sagebrush Artemisia tripartita Rydb. threetip sagebrush Aster ascendens Lindl. Chile aster Aster eatonii (Gray) T.J. Howell Eaton's aster Aster ericoides L. heath aster Aster falcatus Lindl. cluster aster Aster foliaceus Lindl. ex DC. alpine leafybract aster Aster glaucodes Blake gray aster Aster integrifolius Nutt. thickstem aster Aster laevis L. smooth aster Aster lanceolatus Willd. white panicle aster Aster novae-angliae L. New England aster Aster occidentalis (Nutt.) Torr. & Gray western aster Aster perelegans A. Nels. & J.F. Macbr. elegant aster Aster sibiricus L. Siberian aster Atrichoseris platyphylla (Gray) Gray parachute plant Baccharis emoryi Gray Emory's baccharis Baccharis salicifolia (Ruiz & Pavon) Pers. mule's fat Baccharis salicina Torr. & Gray Great Plains falsewillow Baccharis sergiloides Gray squaw waterweed baccharis Baccharis wrightii Gray Wright's baccharis Bahia dissecta (Gray) Britt. ragleaf bahia Baileya multiradiata Harvey & Gray ex Gray desert marigold Baileya pleniradiata Harvey & Gray ex Gray woolly desert marigold Balsamita major Desf. costmary Balsamorhiza hookeri (Hook.) Nutt. Hooker's balsamroot Balsamorhiza macrophylla Nutt. cutleaf balsamroot Balsamorhiza sagittata (Pursh) Nutt. arrowleaf balsamroot Bebbia juncea (Benth.) Greene sweetbush Bellis perennis L. lawndaisy Bidens cernua L. nodding beggartick Bidens frondosa L. devil's beggartick Bidens tripartita L. threelobe beggarticks Brachyactis ciliata (Ledeb.) Ledeb. alkali rayless aster Brachyactis frondosa (Nutt.) Gray leafy rayless aster Brickellia atractyloides Gray spearleaf brickellbush Brickellia californica (Torr. & Gray) Gray California brickellbush Brickellia eupatorioides (L.) Shinners false boneset Brickellia grandiflora (Hook.) Nutt. tasselflower brickellbush Brickellia longifolia S. Wats. longleaf brickellbush Brickellia microphylla (Nutt.) Gray littleleaf brickellbush Brickellia oblongifolia Nutt. Mojave brickellbush Calycoseris parryi Gray yellow tackstem Calycoseris wrightii Gray white tackstem Carduus nutans L. nodding plumeless thistle Centaurea biebersteinii DC. spotted knapweed Centaurea calcitrapa L. red star thistle Centaurea cyanus L. garden cornflower Centaurea diffusa Lam. white knapweed Centaurea melitensis L. Maltese star thistle Centaurea scabiosa L. greater knapweed Centaurea solstitialis L. yellow star thistle Centaurea triumfettii All. squarrose knapweed Chaenactis carphoclinia Gray pebble pincushion Chaenactis douglasii (Hook.) Hook. & Arn. Douglas' dustymaiden Chaenactis douglasii var. alpina Gray alpine dustymaiden Chaenactis fremontii Gray pincushion flower Chaenactis macrantha D.C. Eat. bighead dustymaiden Chaenactis nevadensis (Kellogg) Gray Nevada dustymaiden Chaenactis stevioides Hook. & Arn. Steve's dustymaiden Chaetopappa ericoides (Torr.) Nesom rose heath Chamaechaenactis scaposa (Eastw.) Rydb. fullstem Chloracantha spinosa (Benth.) Nesom spiny chloracantha Chrysanthemum balsamita (L.) Baill., non L. = Balsamita major Chrysanthemum leucanthemum L. = Leucanthemum vulgare Chrysanthemum parthenium (L.) Bernh. = Tanacetum parthenium Chrysothamnus albidus (M.E. Jones ex Gray) Greene whiteflower rabbitbrush Chrysothamnus depressus Nutt. longflower rabbitbrush Chrysothamnus frigidus Greene = Ericameria nauseosa ssp. nauseosa var. nauseosa Chrysothamnus graveolens (Nutt.) Greene = Ericameria nauseosa ssp. nauseosa var. glabrata Chrysothamnus greenei (Gray) Greene Greene's rabbitbrush Chrysothamnus linifolius Greene spearleaf rabbitbrush Chrysothamnus nauseosus (Pallas ex Pursh) Britt. = Ericameria nauseosa ssp. nauseosa var. nauseosa Chrysothamnus parryi ssp. parryi (Gray) Greene Parry's rabbitbrush Chrysothamnus pulchellus (Gray) Greene southwestern rabbitbrush Chrysothamnus vaseyi (Gray) Greene Vasey's rabbitbrush Chrysothamnus viscidiflorus (Hook.) Nutt. green rabbitbrush Cichorium intybus L. chicory Cirsium arizonicum (Gray) Petrak Arizona thistle Cirsium arvense (L.) Scop. Canadian thistle Cirsium barnebyi Welsh & Neese Barneby's thistle Cirsium calcareum (M.E. Jones) Woot. & Standl. Cainville thistle Cirsium clavatum (M.E. Jones) Petrak Fish Lake thistle Cirsium eatonii (Gray) B.L. Robins. Eaton's thistle Cirsium murdockii (Welsh) Cronq. Cirsium neomexicanum Gray New Mexico thistle Cirsium ownbeyi Welsh Ownbey's thistle Cirsium remotifolium (Hook.) DC. fewleaf thistle Cirsium rothrockii (Gray) Petrak Rothrock's thistle Cirsium rydbergii Petrak Rydberg's thistle Cirsium scariosum Nutt. meadow thistle Cirsium subniveum Rydb. Jackson Hole thistle Cirsium undulatum (Nutt.) Spreng. wavyleaf thistle Cirsium virginense Welsh virgin thistle Cirsium vulgare (Savi) Ten. bull thistle Cirsium wheeleri (Gray) Petrak Wheeler's thistle Cnicus benedictus L. blessed thistle Conyza bonariensis (L.) Cronq. asthmaweed Conyza canadensis (L.) Cronq. Canadian horseweed Crepis acuminata Nutt. longleaf hawksbeard Crepis atribarba Heller slender hawksbeard Crepis capillaris Wallr. smooth hawksbeard Crepis intermedia Gray limestone hawksbeard Crepis modocensis Greene Siskiyou hawksbeard Crepis nana Richards. dwarf alpine hawksbeard Crepis occidentalis Nutt. largeflower hawksbeard Crepis runcinata (James) Torr. & Gray fiddleleaf hawksbeard Dicoria canescens Gray desert twinbugs Dyssodia papposa (Vent.) A.S. Hitchc. fetid marigold Encelia farinosa Gray ex Torr. goldenhills Encelia frutescens (Gray) Gray button brittlebush Encelia virginensis A. Nels. Virgin River brittlebush Enceliopsis nudicaulis (Gray) A. Nels. nakedstem sunray Enceliopsis nutans (Eastw.) A. Nels. nodding sunray Ericameria cervina (S. Wats.) Rydb. deer heathgoldenrod Ericameria crispa (L.C. Anders.) Nesom crisped heathgoldenrod Ericameria discoidea (Nutt.) Nesom whitestem 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 parryi (Gray) Nesom Ericameria zionis (L.C. Anders.) Nesom Zion heathgoldenrod Erigeron abajoensis Cronq. Abajo fleabane Erigeron acris L. Erigeron annuus (L.) Pers. eastern daisy fleabane Erigeron aphanactis (Gray) Greene rayless shaggy fleabane Erigeron argentatus Gray silver fleabane Erigeron awapensis Welsh Awapa fleabane Erigeron bellidiastrum Nutt. western daisy fleabane Erigeron caespitosus Nutt. tufted fleabane Erigeron canus Gray hoary fleabane Erigeron carringtoniae Welsh Sanpete County fleabane Erigeron compactus Blake fernleaf fleabane Erigeron compositus Pursh cutleaf daisy Erigeron consimilis Cronq. foothill fleabane Erigeron corymbosus Nutt. longleaf fleabane Erigeron coulteri Porter large mountain fleabane Erigeron cronquistii Maguire Cronquist's fleabane Erigeron divergens Torr. & Gray spreading fleabane Erigeron eatonii Gray Eaton's fleabane Erigeron eatonii var. eatonii Gray Eaton's fleabane Erigeron elatior (Gray) Greene tall fleabane Erigeron engelmannii A. Nels. Engelmann's fleabane Erigeron eximius Greene sprucefir fleabane Erigeron filifolius (Hook.) Nutt. threadleaf fleabane Erigeron flagellaris Gray trailing fleabane Erigeron formosissimus Greene beautiful fleabane Erigeron garrettii A. Nels. Garrett's fleabane Erigeron glabellus Nutt. streamside fleabane Erigeron goodrichii Welsh Uinta Mountain fleabane Erigeron jonesii Cronq. Jones' fleabane Erigeron kachinensis Welsh & Moore kachina fleabane Erigeron leiomerus Gray rockslide yellow fleabane Erigeron linearis (Hook.) Piper desert yellow fleabane Erigeron maguirei Cronq. Maguire's fleabane Erigeron mancus Rydb. depauperate fleabane Erigeron melanocephalus (A. Nels.) A. Nels. blackhead fleabane Erigeron nanus Nutt. dwarf fleabane Erigeron nauseosus (M.E. Jones) A. Nels. Marysvale fleabane Erigeron nematophyllus Rydb. needleleaf fleabane Erigeron peregrinus (Banks ex Pursh) Greene subalpine fleabane Erigeron proselyticus Nesom professor's fleabane Erigeron pulcherrimus Heller basin fleabane Erigeron pumilus Nutt. shaggy fleabane Erigeron religiosus Cronq. Clear Creek fleabane Erigeron simplex Greene onestem fleabane Erigeron sionis Cronq. Zion fleabane Erigeron speciosus (Lindl.) DC. aspen fleabane Erigeron subtrinervis Rydb. ex Porter & Britt. threenerve fleabane Erigeron tener (Gray) Gray slender fleabane Erigeron uintahensis Cronq. Uinta fleabane Erigeron untermannii Welsh & Goodrich Indian Canyon fleabane Erigeron ursinus D.C. Eat. Bear River fleabane Erigeron utahensis Gray Utah fleabane Erigeron vagus Payson rambling fleabane Erigeron zothecinus Welsh Lake Powell fleabane Eriophyllum Lag. woollysunflower Eriophyllum lanatum (Pursh) Forbes woolly eriophyllum Eucephalus engelmannii (D.C. Eat.) Greene Eupatorium herbaceum (Gray) Greene = Ageratina herbacea Eupatorium maculatum L. spotted joepyeweed Eupatorium occidentale Hook. = Ageratina occidentalis Euthamia occidentalis Nutt. western goldentop Filago californica Nutt. California cottonrose Flaveria campestris J.R. Johnston alkali yellowtops Gaillardia aristata Pursh common gaillardia Gaillardia arizonica Gray Arizona blanketflower Gaillardia flava Rydb. yellow blanketflower Gaillardia parryi Greene Parry's blanketflower Gaillardia pinnatifida Torr. red dome blanketflower Gaillardia spathulata Gray western blanketflower Geraea canescens Torr. & Gray hairy desertsunflower Glyptopleura marginata D.C. Eat. carveseed Glyptopleura setulosa Gray holy dandelion Gnaphalium exilifolium A. Nels. Gnaphalium palustre Nutt. western marsh cudweed Gnaphalium uliginosum L. marsh cudweed Grindelia aphanactis Rydb. = Grindelia nuda var. aphanactis Grindelia fastigiata Greene pointed gumweed Grindelia laciniata Rydb. cutleaf gumweed Grindelia nana Nutt. Idaho gumweed Grindelia nuda Wood curlytop gumweed Grindelia nuda var. aphanactis (Rydb.) Nesom curlytop gumweed Grindelia squarrosa (Pursh) Dunal curlycup gumweed Gutierrezia microcephala (DC.) Gray threadleaf snakeweed Gutierrezia petradoria (Welsh & Goodrich) Welsh San Pedro snakeweed Gutierrezia sarothrae (Pursh) Britt. & Rusby broom snakeweed Haplopappus laricifolius Gray = Ericameria laricifolia Haplopappus linearifolius DC. = Ericameria linearifolia Helenium autumnale L. common sneezeweed Helenium hoopesii Gray = Hymenoxys hoopesii Helianthella microcephala (Gray) Gray purpledisk helianthella Helianthella quinquenervis (Hook.) Gray fivenerve helianthella Helianthella uniflora (Nutt.) Torr. & Gray oneflower helianthella Helianthus annuus L. common sunflower Helianthus anomalus Blake western sunflower Helianthus nuttallii Torr. & Gray Nuttall's sunflower Helianthus petiolaris Nutt. prairie sunflower Heliomeris ciliata (Robins. & Greenm.) Yates hairy falsegoldeneye Heliomeris hispida (Gray) Cockerell hairy falsegoldeneye Heliomeris longifolia (Robins. & Greenm.) Cockerell longleaf falsegoldeneye Heliomeris multiflora Nutt. showy goldeneye Heliomeris soliceps (Barneby) Yates tropical falsegoldeneye Hesperodoria scopularum (M.E. Jones) Greene Grand Canyon glowweed Heterotheca grandiflora Nutt. telegraphweed Heterotheca jonesii (Blake) Welsh & Atwood Jones' falsegoldenaster Heterotheca subaxillaris (Lam.) Britt. & Rusby camphorweed Heterotheca villosa (Pursh) Shinners hairy goldenaster Hieracium albiflorum Hook. white hawkweed Hieracium cynoglossoides Arv.-Touv. houndstongue hawkweed Hieracium fendleri Schultz-Bip. yellow hawkweed Hieracium gracile Hook. slender hawkweed Hieracium scouleri Hook. woollyweed Hulsea heterochroma Gray redray alpinegold Hymenoclea salsola Torr. & Gray ex Gray white burrobush Hymenopappus filifolius Hook. fineleaf hymenopappus Hymenoxys cooperi (Gray) Cockerell Cooper's hymenoxys Hymenoxys helenioides (Rydb.) Cockerell Intermountain hymenoxys Hymenoxys hoopesii (Gray) Bierner Hymenoxys lapidicola Welsh & Neese stone hymenoxys Hymenoxys lemmonii (Greene) Cockerell Lemmon's rubberweed Hymenoxys richardsonii (Hook.) Cockerell pingue hymenoxys Hymenoxys subintegra Cockerell Arizona rubberweed Hypochaeris radicata L. hairy catsear Inula helenium L. elecampane inula Ionactis alpina (Nutt.) Greene alpine ionactis Isocoma drummondii (Torr. & Gray) Greene Drummond's jimmyweed Iva acerosa (Nutt.) R.C. Jackson copperweed Iva axillaris Pursh povertyweed Iva xanthifolia Nutt. giant sumpweed Lactuca biennis (Moench) Fern. tall blue lettuce Lactuca canadensis L. Canada lettuce Lactuca ludoviciana (Nutt.) Riddell biannual lettuce Lactuca serriola L. prickly lettuce Lactuca tatarica (L.) C.A. Mey. blue lettuce Laennecia coulteri (Gray) Nesom conyza Lapsana communis L. common nipplewort Layia glandulosa (Hook.) Hook. & Arn. whitedaisy tidytips Layia platyglossa (Fisch. & C.A. Mey.) Gray coastal tidytips Lepidospartum latisquamum S. Wats. Nevada broomsage Leucanthemum leucanthemum (L.) Rydb. = Leucanthemum vulgare Leucanthemum vulgare Lam. oxeyedaisy Lygodesmia arizonica S. Tomb Arizona skeletonplant Lygodesmia dianthopsis (Eat. ex King) S. Tomb Antelope Island skeletonplant Lygodesmia entrada Welsh & Goodrich rushpink skeletonplant Lygodesmia grandiflora (Nutt.) Torr. & Gray largeflower skeletonplant Machaeranthera bigelovii (Gray) Greene Bigelow's tansyaster Machaeranthera canescens (Pursh) Gray hoary aster Machaeranthera gracilis (Nutt.) Shinners slender goldenweed Machaeranthera grindelioides (Nutt.) Shinners rayless aster Machaeranthera pinnatifida (Hook.) Shinners lacy tansyaster Machaeranthera tanacetifolia (Kunth) Nees tanseyleaf aster Madia glomerata Hook. mountain tarweed Madia gracilis (Sm.) Keck & J. Clausen ex Applegate grassy tarweed Malacothrix californica DC. California desertdandelion Malacothrix clevelandii Gray Cleveland's desertdandelion Malacothrix coulteri Harvey & Gray snake's head Malacothrix glabrata (Gray ex D.C. Eat.) Gray smooth desertdandelion Malacothrix sonchoides (Nutt.) Torr. & Gray sowthistle desertdandelion Malacothrix torreyi Gray Torrey's desertdandelion Matricaria discoidea DC. disc mayweed Matricaria perforata Merat scentless mayweed Microseris D. Don microseris Microseris nutans (Hook.) Schultz-Bip. nodding microceris Monoptilon bellidiforme Torr. & Gray ex Gray daisy desertstar Nothocalais troximoides (Gray) Greene weevil microseris Onopordum acanthium L. Scotch cottonthistle Palafoxia arida B.L. Turner & Morris desert palafox Palafoxia linearis (Cav.) Lag. palafox Parthenium incanum Kunth mariola Parthenium ligulatum (M.E. Jones) Barneby Colorado feverfew Pectis angustifolia Torr. narrowleaf pectis Pectis papposa Harvey & Gray cinchweed fetidmarigold Perezia wrightii Gray = Acourtia wrightii Perityle emoryi Torr. Emory's rocklily Perityle specuicola Welsh & Neese alcove rockdaisy Perityle stansburii (Gray) J.F. Macbr. Stansbur's rockdaisy Perityle tenella (M.E. Jones) J.F. Macbr. Springdale rockdaisy Petradoria pumila (Nutt.) Greene grassy rockgoldenrod Peucephyllum Gray pygmycedar Peucephyllum schottii Gray Schott's pygmycedar Platyschkuhria integrifolia (Gray) Rydb. oblongleaf bahia Pleurocoronis pluriseta (Gray) King & H.E. Robins. bush arrowleaf Pluchea camphorata (L.) DC. camphor pluchea Pluchea sericea (Nutt.) Coville arrowweed Porophyllum gracile Benth. slender poreleaf Prenanthella exigua (Gray) Rydb. brightwhite Psathyrotes annua (Nutt.) Gray annual psathyrotes Psathyrotes pilifera Gray hairybeast turtleback Pseudognaphalium canescens (DC.) W.A. Weber Pseudognaphalium stramineum (Kunth) W.A. Weber Pseudognaphalium viscosum (Kunth) W.A. Weber Psilocarphus brevissimus Nutt. short woollyheads Psilostrophe cooperi (Gray) Greene whitestem paperflower Psilostrophe sparsiflora (Gray) A. Nels. greenstem paperflower Psilostrophe tagetina (Nutt.) Greene woolly paperflower Pyrrocoma apargioides (Gray) Greene alpineflames Pyrrocoma clementis Rydb. tranquil goldenweed Pyrrocoma clementis var. clementis Rydb. tranquil goldenweed Pyrrocoma crocea (Gray) Greene curlyhead goldenweed Pyrrocoma lanceolata (Hook.) Greene lanceleaf goldenweed Pyrrocoma racemosa (Nutt.) Torr. & Gray clustered goldenweed Rafinesquia californica Nutt. California plumseed Rafinesquia neomexicana Gray New Mexico plumseed Ratibida columnifera (Nutt.) Woot. & Standl. upright prairie coneflower Rudbeckia laciniata L. cutleaf coneflower Rudbeckia montana Gray Rudbeckia occidentalis Nutt. western coneflower Senecio amplectens Gray showy alpine groundsel Senecio atratus Greene tall blacktip ragwort Senecio bigelovii Gray nodding ragwort Senecio crassulus Gray thickleaf groundsel Senecio crocatus Rydb. saffron ragwort Senecio dimorphophyllus Greene splitleaf groundsel Senecio eremophilus Richards. desert groundsel Senecio fendleri Gray Fendler's ragwort Senecio flaccidus Less. threadleaf ragwort Senecio fremontii Torr. & Gray Fremont's groundsel Senecio hartianus Heller Hart's ragwort Senecio hydrophiloides Rydb. tall groundwel Senecio hydrophilus Nutt. water groundsel Senecio integerrimus Nutt. lambstongue groundsel Senecio multilobatus Torr. & Gray ex Gray lobeleaf groundsel Senecio neomexicanus Gray New Mexico groundsel Senecio pauperculus Michx. balsam groundsel Senecio pudicus Greene bashful ragwort Senecio serra Hook. butterweed groundsel Senecio spartioides Torr. & Gray broom groundsel Senecio sphaerocephalus Greene ballhead groundsel Senecio streptanthifolius Greene cleftleaf groundsel Senecio triangularis Hook. arrowleaf groundsel Senecio vulgaris L. common groundsel Senecio werneriifolius (Gray) Gray hoary groundsel Solidago canadensis L. Canada goldenrod Solidago missouriensis Nutt. Missouri goldenrod Solidago multiradiata Ait. mountain goldenrod Solidago nana Nutt. baby goldenrod Solidago parryi (Gray) Greene Parry's goldenrod Solidago simplex Kunth Mt. Albert goldenrod Solidago spectabilis (D.C. Eat.) Gray Nevada goldenrod Solidago velutina DC. threenerve goldenrod Sonchus arvensis L. field sowthistle Sonchus asper (L.) Hill spiny sowthistle Sonchus oleraceus L. common sowthistle Sphaeromeria capitata Nutt. rock tansy Sphaeromeria diversifolia (D.C. Eat.) Rydb. separateleaf chickensage Sphaeromeria ruthiae Holmgren, Shultz & Lowrey Zion chickensage Stenotus acaulis (Nutt.) Nutt. stemless mock goldenweed Stenotus armerioides Nutt. thrift mock goldenweed Stephanomeria exigua Nutt. small wirelettuce Stephanomeria parryi Gray Parry's wirelettuce Stephanomeria pauciflora (Torr.) A. Nels. brownplume wirelettuce Stephanomeria runcinata Nutt. desert wirelettuce Stephanomeria spinosa (Nutt.) S. Tomb thorn skeletonweed Stephanomeria tenuifolia (Raf.) Hall narrowleaf wirelettuce Stylocline micropoides Gray woollyhead neststraw Syntrichopappus fremontii Gray yellowray Fremontsgold Tanacetum balsamita L. = Balsamita major Tanacetum parthenium (L.) Schultz-Bip. feverfew Tanacetum vulgare L. common tansy Taraxacum officinale G.H. Weber ex Wiggers common dandelion Tetradymia axillaris A. Nels. longspine horsebrush Tetradymia canescens DC. spineless horsebrush Tetradymia glabrata Torr. & Gray littleleaf horsebrush Tetradymia nuttallii Torr. & Gray Nuttall's horsebrush Tetradymia spinosa Hook. & Arn. shortspine horsebrush Tetraneuris Greene hymenoxys Tetraneuris acaulis (Pursh) Greene stemless hymenoxys Tetraneuris depressa (Torr. & Gray ex Gray) Greene flat hymenoxys Tetraneuris grandiflora (Torr. & Gray ex Gray) Parker graylocks hymenoxys Tetraneuris ivesiana Greene Ives' fournerved daisy Tetraneuris torreyana (Nutt.) Greene Torrey's hymenoxys Thelesperma megapotamicum (Spreng.) Kuntze Hopi tea greenthread Thelesperma pubescens Dorn hairy greenthread Thelesperma subnudum Gray sand fringedpod Thelesperma subnudum var. subnudum Gray Navajo tea Thymophylla acerosa (DC.) Strother pricklyleaf dogweed Thymophylla pentachaeta (DC.) Small fiveneedle pricklyleaf Tonestus kingii (D.C. Eat.) Nesom King's serpentweed Townsendia alpigena Piper Wyoming townsendia Townsendia annua Beaman annual townsend daisy Townsendia aprica Welsh & Reveal Last Chance townsend daisy Townsendia condensata Parry ex Gray hairy townsendia Townsendia exscapa (Richards.) Porter stemless townsendia Townsendia florifer (Hook.) Gray showy townsendia Townsendia hookeri Beaman Hooker's townsendia Townsendia incana Nutt. hoary townsendia Townsendia jonesii (Beaman) Reveal Jones' townsend daisy Townsendia leptotes (Gray) Osterhout common townsendia Townsendia mensana M.E. Jones table townsendia Townsendia scapigera D.C. Eat. tufted townsend daisy Townsendia strigosa Nutt. hairy townsendia Tragopogon dubius Scop. yellow salsify Tragopogon porrifolius L. salsify Tragopogon pratensis L. meadow salsify Trimorpha lonchophylla var. lonchophylla (Hook.) Nesom spearleaf fleabane Tripleurospermum maritima (L.) W.D.J. Koch Uropappus linearifolius Nutt. Vanclevea stylosa (Eastw.) Greene pillar false gumweed Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray golden crownbeard Wyethia amplexicaulis (Nutt.) Nutt. mulesears wyethia Wyethia arizonica Gray Arizona mulesears Wyethia scabra Hook. badlands wyethia Xanthium strumarium L. rough cockleburr Xanthocephalum sarothrae (Pursh) Shinners = Gutierrezia sarothrae Xylorhiza confertifolia (Cronq.) T.J. Wats. Henrieville woodyaster Xylorhiza cronquistii Welsh & Atwood Cronquist's woodyaster Xylorhiza glabriuscula Nutt. smooth woodyaster Xylorhiza tortifolia (Torr. & Gray) Greene Mojave aster Xylorhiza venusta (M.E. Jones) Heller charming woodyaster CONVOLVULACEAE Calystegia longipes (S. Wats.) Brummitt Paiute false bindweed Calystegia sepium (L.) R. Br. hedge false bindweed Convolvulus arvensis L. field bindweed Convolvulus equitans Benth. Texas bindweed Cressa truxillensis Kunth spreading alkaliweed Cuscuta applanata Engelm. Gila River dodder Cuscuta approximata Bab. alfalfa dodder Cuscuta californica Hook. & Arn. chaparral dodder Cuscuta californica var. breviflora Engelm. California dodder Cuscuta cephalanthi Engelm. buttonbush dodder Cuscuta cuspidata Engelm. cusp dodder Cuscuta denticulata Engelm. desert dodder Cuscuta indecora Choisy bigseed alfalfa dodder Cuscuta megalocarpa Rydb. bigfruit dodder Cuscuta pentagona Engelm. fiveangled dodder Cuscuta salina Engelm. saltmarsh dodder Ipomoea purpurea (L.) Roth tall morningglory CORNACEAE Cornus sericea L. redosier dogwood CRASSULACEAE Crassula aquatica (L.) Schoenl. water pygmyweed Dudleya pulverulenta (Nutt.) Britt. & Rose chalk liveforever Sedum album L. white stonecrop Sedum debile S. Wats. orpine stonecrop Sedum lanceolatum Torr. spearleaf stonecrop Sedum rhodanthum Gray redpod stonecrop Sedum rosea (L.) Scop. roseroot stonecrop CROSSOSOMATACEAE Glossopetalon spinescens Gray spiny greasebush CRUCIFERAE Alliaria petiolata (Bieb.) Cavara & Grande garlic mustard Alyssum alyssoides (L.) L. pale madwort Alyssum desertorum Stapf desert madwort Alyssum minus (L.) Rothm. Alyssum szovitsianum Fisch. & C.A. Mey. Szowits' madwort Arabidopsis thaliana (L.) Heynh. mouseear cress Arabis demissa Greene nodding rockcress Arabis drummondii Gray Drummond's rockcress Arabis fendleri (S. Wats.) Greene Fendler's rockcress Arabis fernaldiana Rollins park rockcress Arabis glabra (L.) Bernh. tower rockcress Arabis hirsuta (L.) Scop. hairy rockcress Arabis holboellii Hornem. Holboell's rockcress Arabis lasiocarpa Rollins Wasatch rockcress Arabis lemmonii S. Wats. Lemmon's rockcress Arabis lignifera A. Nels. desert rockcress Arabis lyallii S. Wats. Lyall's rockcress Arabis microphylla Nutt. littleleaf rockcress Arabis nuttallii B.L. Robins. Nuttall's rockcress Arabis perennans S. Wats. perennial rockcress Arabis puberula Nutt. silver rockcress Arabis pulchra M.E. Jones ex S. Wats. beauty rockcress Arabis schistacea Rollins divided rockcress Arabis selbyi Rydb. Selby's rockcress Arabis shockleyi Munz Shockley's rockcress Arabis sparsiflora Nutt. sicklepod rockcress Armoracia rusticana P.G. Gaertn., B. Mey. & Scherb. horseradish Barbarea orthoceras Ledeb. American yellowrocket Barbarea vulgaris Ait. f. garden yellowrocket Berteroa incana (L.) DC. hoary false madwort Brassica juncea (L.) Czern. India mustard Brassica nigra (L.) W.D.J. Koch black mustard Brassica rapa L. rape mustard Camelina microcarpa DC. littlepod falseflax Capsella bursa-pastoris (L.) Medik. shepherd's purse Cardamine breweri S. Wats. Brewer's bittercress Cardamine cordifolia Gray heartleaf bittercress Cardamine hirsuta L. hairy bittercress Cardamine oligosperma Nutt. Idaho bittercress Cardamine parviflora L. sand bittercress Cardamine pensylvanica Muhl. ex Willd. Pennsylvania bittercress Cardaria chalapensis (L.) Hand.-Maz. Cardaria draba (L.) Desv. pepperweed whitetop Cardaria pubescens (C.A. Mey.) Jarmolenko hairy whitetop Caulanthus cooperi (S. Wats.) Payson Cooper's wild cabbage Caulanthus crassicaulis (Torr.) S. Wats. thickstem wild cabbage Caulanthus major (M.E. Jones) Payson slender wild cabbage Caulanthus pilosus S. Wats. hairy wild cabbage Chlorocrambe hastata (S. Wats.) Rydb. spearhead Chorispora tenella (Pallas) DC. crossflower Conringia orientalis (L.) Dumort. hare's ear mustard Cusickiella douglasii (Gray) Rollins alkali false whitlowgrass Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn mountain tansymustard Descurainia pinnata (Walt.) Britt. western tansymustard Descurainia sophia (L.) Webb ex Prantl herb sophia Dimorphocarpa wislizeni (Engelm.) Rollins touristplant Diplotaxis muralis (L.) DC. annual wallrocket Draba asprella Greene rough whitlowgrass Draba aurea Vahl ex Hornem. golden whitlowgrass Draba brachystylis Rydb. shortstyle whitlowgrass Draba breweri S. Wats. cushion whitlowgrass Draba crassa Rydb. thickleaf whitlowgrass Draba crassifolia Graham snowbed whitlowgrass Draba cuneifolia Nutt. ex Torr. & Gray wedgeleaf whitlowgrass Draba densifolia Nutt. denseleaf whitlowgrass Draba globosa Payson beavertip whitlowgrass Draba incerta Payson Yellowstone whitlowgrass Draba kassii Welsh Kass' whitlowgrass Draba lonchocarpa Rydb. lancepod whitlowgrass Draba maguirei C.L. Hitchc. Maguire's whitlowgrass Draba nemorosa L. woodland whitlowgrass Draba oligosperma Hook. fewseed whitlowgrass Draba rectifructa C.L. Hitchc. mountain whitlowgrass Draba reptans (Lam.) Fern. Carolina whitlowgrass Draba sobolifera Rydb. stolon whitlowgrass Draba spectabilis Greene showy whitlowgrass Draba stenoloba Ledeb. Alaska whitlowgrass Draba ventosa Gray Wind River whitlowgrass Draba verna L. spring whitlowgrass Erysimum capitatum (Dougl. ex Hook.) Greene sanddune wallflower Euclidium syriacum (L.) Ait. f. Syrian mustard Glaucocarpum Rollins waxfruit mustard Glaucocarpum suffrutescens (Rollins) Rollins Uinta Basin waxfruit Guillenia lasiophylla (Hook. & Arn.) Greene Halimolobos virgata (Nutt.) O.E. Schulz rod halimolobos Hesperis matronalis L. dames rocket Hutchinsia procumbens (L.) Desv. prostrate hutchinsia Isatis tinctoria L. Dyer's woad Lepidium barnebyanum Reveal Barneby's pepperweed Lepidium campestre (L.) Ait. f. field pepperweed Lepidium densiflorum Schrad. common pepperweed Lepidium dictyotum Gray net pepperweed Lepidium fremontii S. Wats. desert pepperweed Lepidium heterophyllum Benth. purpleanther field pepperweed Lepidium integrifolium Nutt. thickleaf pepperweed Lepidium lasiocarpum Nutt. shaggyfruit pepperweed Lepidium latifolium L. broadleaved pepperweed Lepidium montanum Nutt. mountain pepperweed Lepidium ostleri Welsh & Goodrich Ostler's pepperweed Lepidium perfoliatum L. clasping pepperweed Lepidium virginicum L. Virginia pepperweed Lesquerella arizonica S. Wats. Arizona bladderpod Lesquerella fendleri (Gray) S. Wats. Fendler's bladderpod Lesquerella garrettii Payson Garrett's bladderpod Lesquerella goodrichii Rollins Tunnel Springs Mountain bladderpod Lesquerella hemiphysaria Maguire Intermountain bladderpod Lesquerella intermedia (S. Wats.) Heller mid bladderpod Lesquerella kingii S. Wats. King bladderpod Lesquerella ludoviciana (Nutt.) S. Wats. foothill bladderpod Lesquerella multiceps Maguire manyhead bladderpod Lesquerella occidentalis S. Wats. western bladderpod Lesquerella parvula Greene pygmy bladderpod Lesquerella prostrata A. Nels. low bladderpod Lesquerella rectipes Woot. & Standl. straight bladderpod Lesquerella rubicundula Rollins tum bladderpod Lesquerella subumbellata Rollins parasol bladderpod Lesquerella tenella A. Nels. Moapa bladderpod Lesquerella utahensis Rydb. Utah bladderpod Lesquerella wardii S. Wats. Ward's bladderpod Lobularia maritima (L.) Desv. seaside lobularia Lunaria annua L. annual honesty Malcolmia africana (L.) Ait. f. African mustard Nasturtium officinale Ait. f. = Rorippa nasturtium-aquaticum Parrya nudicaulis (L.) Boiss. nakedstem wallflower Physaria acutifolia Rydb. sharpleaf twinpod Physaria chambersii Rollins Chambers' twinpod Physaria floribunda Rydb. pointtip twinpod Physaria lepidota Rollins Kane County twinpod Physaria newberryi Gray Newberry's twinpod Physaria stylosa Rollins Duchesne River twinpod Rorippa alpina (S. Wats.) Rydb. alpine yellowcress Rorippa curvipes Greene bluntleaf yellowcress Rorippa nasturtium-aquaticum (L.) Hayek watercress Rorippa palustris (L.) Bess. bog yellowcress Rorippa sinuata (Nutt.) A.S. Hitchc. spreading yellowcress Rorippa sphaerocarpa (Gray) Britt. roundfruit yellowcress Rorippa sylvestris (L.) Bess. creeping yellowcress Rorippa tenerrima Greene Modoc yellowcress Schoenocrambe argillacea (Welsh & Atwood) Rollins Uinta Basin plainsmustard Schoenocrambe barnebyi (Welsh & Atwood) Rollins Syes Butte plainsmustard Schoenocrambe linifolia (Nutt.) Greene flaxleaf plainsmustard Sinapis arvensis L. charlock mustard Sinapis nigra L. = Brassica nigra Sisymbrium altissimum L. tall tumblemustard Sisymbrium irio L. Londonrocket Sisymbrium officinale (L.) Scop. hedgemustard Smelowskia calycina (Steph. ex Willd.) C.A. Mey. alpine smelowskia Stanleya pinnata (Pursh) Britt. desert princesplume Stanleya viridiflora Nutt. green princesplume Streptanthella longirostris (S. Wats.) Rydb. longbeak streptanthella Streptanthus cordatus Nutt. heartleaf twistflower Thelypodiopsis ambigua (S. Wats.) Al-Shehbaz Long Valley tumblemustard Thelypodiopsis aurea (Eastw.) Rydb. Durango tumblemustard Thelypodiopsis divaricata (Rollins) Welsh & Reveal spreading thelypodiopsis Thelypodiopsis elegans (M.E. Jones) Rydb. Westwater tumblemustard Thelypodiopsis vermicularis (Welsh & Reveal) Rollins Great Basin tumblemustard Thelypodium flexuosum B.L. Robins. nodding thelypody Thelypodium integrifolium (Nutt.) Endl. ex Walp. entireleaved thelypody Thelypodium laxiflorum Al-Shehbaz droopflower thelypody Thelypodium milleflorum A. Nels. manyflower thelypody Thelypodium rollinsii Al-Shehbaz Rollins' thelypody Thelypodium sagittatum (Nutt. ex Torr. & Gray) Endl. ex Walp. arrow thelypody Thelypodium wrightii Gray Wright's thelypody Thlaspi arvense L. field pennycress Thlaspi montanum L. alpine pennycress Thysanocarpus curvipes Hook. sand fringepod CUCURBITACEAE Bryonia alba L. white bryony Citrullus lanatus (Thunb.) Matsumura & Nakai watermelon Cucumis sativus L. garden cucumber Cucurbita foetidissima Kunth Missouri gourd Cucurbita palmata S. Wats. coyote gourd Echinocystis lobata (Michx.) Torr. & Gray wild cucumber CUPRESSACEAE Cupressus arizonica Greene Arizona cypress Juniperus communis L. common juniper Juniperus monosperma (Engelm.) Sarg. oneseed juniper Juniperus osteosperma (Torr.) Little Utah juniper Juniperus scopulorum Sarg. Rocky Mountain juniper Juniperus utahensis (Engelm.) Lemmon = Juniperus osteosperma Platycladus orientalis (L.) Franco oriental arborvitae Thuja occidentalis L. eastern arborvitae Thuja orientalis L. = Platycladus orientalis DENNSTAEDTIACEAE Pteridium aquilinum (L.) Kuhn western brackenfern DIPSACACEAE Dipsacus fullonum L. Fuller's teasel DRYOPTERIDACEAE Athyrium americanum (Butters) Maxon alpine ladyfern Athyrium filix-femina (L.) Roth common ladyfern Cystopteris bulbifera (L.) Bernh. bulblet bladderfern Cystopteris fragilis (L.) Bernh. brittle bladderfern Dryopteris filix-mas (L.) Schott male fern Polystichum kruckebergii W.H. Wagner Kruckeberg's hollyfern Polystichum lonchitis (L.) Roth northern hollyfern Polystichum scopulinum (D.C. Eat.) Maxon mountain hollyfern Woodsia oregana D.C. Eat. Oregon woodsia Woodsia scopulina D.C. Eat. Rocky Mountain woodsia EBENACEAE Diospyros virginiana L. common persimmon ELAEAGNACEAE Elaeagnus angustifolia L. Russian olive Elaeagnus commutata Bernh. ex Rydb. silverberry Elaeagnus orientalis L. oriental olive Shepherdia argentea (Pursh) Nutt. silver buffaloberry Shepherdia canadensis (L.) Nutt. russet buffaloberry Shepherdia rotundifolia Parry roundleaf buffaloberry ELATINACEAE Bergia texana (Hook.) Seub. ex Walp. Texas bergia Elatine brachysperma Gray shortseed waterwort Elatine californica Gray California waterwort Elatine rubella Rydb. southwestern waterwort Elatine triandra Schkuhr threestamen waterwort EPHEDRACEAE Ephedra cutleri Peebles Ephedra fasciculata A. Nels. Arizona jointfir Ephedra nevadensis S. Wats. Nevada jointfir Ephedra torreyana S. Wats. Torrey's jointfir Ephedra viridis Coville mormon tea Ephedra viridis var. viridis Coville mormon tea EQUISETACEAE Equisetum X nelsonii (A.A. Eat.) Schaffn. (pro sp.) Nelson's 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 variegatum Schleich. ex F. Weber & D.M.H. Mohr variegated scouringrush ERICACEAE Arctostaphylos patula Greene greenleaf manzanita Arctostaphylos pringlei Parry Pringle manzanita Arctostaphylos pungens Kunth pointleaf manzanita Arctostaphylos uva-ursi (L.) Spreng. kinnikinnick Chimaphila menziesii (R. Br. ex D. Don) Spreng. little prince's pine Chimaphila umbellata (L.) W. Bart. pipsissewa Gaultheria humifusa (Graham) Rydb. alpine spicywintergreen Kalmia microphylla (Hook.) Heller alpine laurel Ledum glandulosum Nutt. Western Labradortea Moneses uniflora (L.) Gray single delight Orthilia secunda (L.) House sidebells wintergreen Pyrola asarifolia Michx. liverleaf wintergreen Pyrola asarifolia ssp. asarifolia Michx. liverleaf wintergreen Pyrola chlorantha Sw. greenflowered wintergreen Pyrola minor L. snowline wintergreen Pyrola picta Sm. whiteveined wintergreen Pyrola secunda L. = Orthilia secunda Vaccinium cespitosum Michx. dwarf blueberry Vaccinium membranaceum Dougl. ex Torr. blue huckleberry Vaccinium myrtillus L. whortleberry Vaccinium scoparium Leib. ex Coville grouse whortleberry Vaccinium uliginosum L. bog blueberry EUPHORBIACEAE Chamaesyce albomarginata (Torr. & Gray) Small whitemargin sandmat Chamaesyce fendleri (Torr. & Gray) Small Fendler's sandmat Chamaesyce glyptosperma (Engelm.) Small ribseed sandmat Chamaesyce hyssopifolia (L.) Small hyssopleaf sandmat Chamaesyce maculata (L.) Small spotted sandmat Chamaesyce micromera (Boiss.) Woot. & Standl. Sonoran sandmat Chamaesyce nutans (Lag.) Small eyebane Chamaesyce parryi (Engelm.) Rydb. Parry's sandmat Chamaesyce prostrata (Ait.) Small prostrate sandmat Chamaesyce revoluta (Engelm.) Small threadstem sandmat Chamaesyce serpyllifolia (Pers.) Small thymeleaf sandmat Chamaesyce setiloba (Engelm. ex Torr.) Millsp. ex Parish Yuma sandmat Croton californicus Muell.-Arg. California croton Croton setigerus Hook. croton Croton texensis (Klotzsch) Muell.-Arg. Texas croton Euphorbia albomarginata Torr. & Gray = Chamaesyce albomarginata Euphorbia chamaesyce auct. non L. = Chamaesyce prostrata Euphorbia cyathophora Murr. fire on the mountain Euphorbia cyparissias L. cypress spurge Euphorbia dentata Michx. toothed spurge Euphorbia esula L. wolf's milk Euphorbia maculata L. = Chamaesyce maculata Euphorbia marginata Pursh snow on the mountain Euphorbia myrsinites L. myrtle spurge Euphorbia nephradenia Barneby Paria spurge Euphorbia peplus L. petty spurge Euphorbia prostrata Ait. = Chamaesyce prostrata Euphorbia spathulata Lam. warty spurge Reverchonia arenaria Gray sand reverchonia Tragia ramosa Torr. branched noseburn FAGACEAE Quercus X pauciloba Rydb. (pro sp.) wavyleaf oak Quercus gambelii Nutt. Gambel's oak Quercus gambelii var. gambelii Nutt. Gambel's oak Quercus havardii Rydb. Havard's oak Quercus turbinella Greene shrub live oak FRANKENIACEAE Frankenia pulverulenta L. European seaheath FUMARIACEAE Corydalis aurea Willd. scrambledeggs Corydalis caseana Gray Sierran fumewort Dicentra uniflora Kellogg longhorn steershead Fumaria officinalis L. drug fumitory Fumaria vaillantii Loisel. earthsmoke GARRYACEAE Garrya flavescens S. Wats. ashy silktassel GENTIANACEAE Centaurium calycosum (Buckl.) Fern. Arizona centaury Centaurium exaltatum (Griseb.) W. Wight ex Piper desert centaury Frasera albomarginata S. Wats. desert elkweed Frasera gypsicola (Barneby) D.M. Post Sunnyside elkweed Frasera paniculata Torr. tufted elkweed Frasera speciosa Dougl. ex Griseb. showy frasera Gentiana affinis Griseb. pleated gentian Gentiana algida Pallas whitish gentian Gentiana calycosa Griseb. Rainier pleated gentian Gentiana parryi Engelm. Parry's gentian Gentiana prostrata Haenke pygmy gentian Gentianella amarella (L.) Boerner autumn dwarfgentian Gentianella tenella (Rottb.) Boerner Dane's dwarfgentian Gentianella tortuosa (M.E. Jones) J. Gillett Cathedral Bluff dwarfgentian Gentianopsis barbellata (Engelm.) Iltis perennial fringedgentian Gentianopsis detonsa (Rottb.) Ma windmill fringedgentian Swertia perennis L. star gentian Swertia radiata (Kellogg) Kuntze = Frasera speciosa GERANIACEAE Erodium cicutarium (L.) L'Her. ex Ait. redstem stork's bill Erodium texanum Gray Texas stork's bill Geranium bicknellii Britt. Bicknell's cranesbill Geranium caespitosum James pineywoods geranium Geranium caespitosum var. fremontii (Torr. ex Gray) Dorn Fremont's geranium Geranium carolinianum L. Carolina geranium Geranium pusillum L. small geranium Geranium richardsonii Fisch. & Trautv. Richardson's geranium Geranium viscosissimum Fisch. & C.A. Mey. ex C.A. Mey. sticky geranium GINKGOACEAE Ginkgo biloba L. maidenhairtree GROSSULARIACEAE Ribes aureum Pursh golden currant Ribes cereum Dougl. wax currant Ribes cereum var. pedicellare Brewer & S. Wats. whisky currant Ribes hudsonianum Richards. northern black currant Ribes inerme Rydb. whitestem gooseberry Ribes lacustre (Pers.) Poir. prickly currant Ribes laxiflorum Pursh trailing black currant Ribes leptanthum Gray trumpet gooseberry Ribes montigenum McClatchie gooseberry currant Ribes oxyacanthoides L. Canadian gooseberry Ribes velutinum Greene desert gooseberry Ribes viscosissimum Pursh sticky currant Ribes wolfii Rothrock Wolf's currant HALORAGACEAE Myriophyllum sibiricum Komarov shortspike watermilfoil HAMAMELIDACEAE Liquidambar styraciflua L. sweetgum HIPPOCASTANACEAE Aesculus flava Ait. yellow buckeye Aesculus glabra Willd. Ohio buckeye Aesculus hippocastanum L. horse chestnut HIPPURIDACEAE Hippuris vulgaris L. common marestail HYDRANGEACEAE Fendlera rupicola Gray cliff fendlerbush Fendlerella utahensis (S. Wats.) Heller Utah fendlerbush Jamesia americana Torr. & Gray cliffbush Philadelphus microphyllus Gray littleleaf mockorange HYDROCHARITACEAE Elodea bifoliata St. John twoleaf waterweed Elodea canadensis Michx. Canadian waterweed HYDROPHYLLACEAE Emmenanthe penduliflora Benth. yellow whisperingbells Eriodictyon angustifolium Nutt. narrowleaf yerbasanta Eucrypta micrantha (Torr.) Heller dainty desert hideseed 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 occidentale (S. Wats.) Gray western waterleaf Nama demissum Gray leafy nama Nama densum J.G. Lemmon leafy nama Nama hispidum Gray bristly nama Nama retrorsum J.T. Howell betatakin fiddleleaf Nemophila breviflora Gray basin nemophila Nemophila parviflora Dougl. ex Benth. smallflower nemophila Phacelia affinis Gray limestone scorpionweed Phacelia alba Rydb. white scorpionweed Phacelia anelsonii J.F. Macbr. Aven Nelson's scorpionweed Phacelia argillacea Atwood Attwood's phacelia Phacelia austromontana J.T. Howell Southern Sierran scorpionweed Phacelia cephalotes Gray virgin scorpionweed Phacelia coerulea Greene skyblue scorpionweed Phacelia constancei Atwood Constance's scorpionweed Phacelia crenulata Torr. ex S. Wats. cleftleaf wildheliotrope Phacelia cryptantha Greene hiddenflower scorpionweed Phacelia curvipes Torr. ex S. Wats. Washoe scorpionweed Phacelia demissa Gray Intermountain scorpionweed Phacelia franklinii (R. Br.) Gray Franklin's phacelia Phacelia fremontii Torr. Fremont's phacelia Phacelia glandulosa Nutt. glandular phacelia Phacelia hastata Dougl. ex Lehm. silverleaf phacelia Phacelia heterophylla Pursh varileaf phacelia Phacelia howelliana Atwood harlequin scorpionweed Phacelia incana Brand hoary phacelia Phacelia indecora J.T. Howell drab scorpionweed Phacelia integrifolia Torr. gypsum scorpionweed Phacelia ivesiana Torr. Ives' phacelia Phacelia ivesiana var. ivesiana Torr. Ives' phacelia Phacelia laxiflora J.T. Howell dozing scorpionweed Phacelia lemmonii Gray Lemmon's scorpionweed Phacelia linearis (Pursh) Holz. threadleaf phacelia Phacelia lutea (Hook. & Arn.) J.T. Howell yellow phacelia Phacelia mammillarensis Atwood Nipple Beach scorpionweed Phacelia palmeri Torr. ex S. Wats. Palmer's scorpionweed Phacelia peirsoniana J.T. Howell handsome scorpionweed Phacelia pulchella Gray beautiful scorpionweed Phacelia rafaelensis Atwood plateau scorpionweed Phacelia rotundifolia Torr. ex S. Wats. roundleaf scorpionweed Phacelia sericea (Graham) Gray silky phacelia Phacelia tetramera J.T. Howell fourpart scorpionweed Phacelia utahensis J. Voss Utah phacelia Phacelia vallis-mortae J. Voss Death Valley scorpionweed Tricardia watsonii Torr. ex S. Wats. threehearts IRIDACEAE Iris germanica L. German iris Iris missouriensis Nutt. Rocky Mountain iris Iris pseudacorus L. paleyellow iris Olsynium douglasii (A. Dietr.) Bickn. Douglas' olsynium Sisyrinchium demissum Greene dwarf blueeyed grass Sisyrinchium idahoense Bickn. Idaho blueeyed grass Sisyrinchium inalatum A. Nels. = Olsynium douglasii var. douglasii ISOETACEAE Isoetes bolanderi Engelm. Bolander's quillwort Isoetes howellii Engelm. Howell's quillwort Isoetes tenella LÇman JUGLANDACEAE Carya illinoinensis (Wangenh.) K. Koch pecan Juglans major (Torr.) Heller Arizona walnut KRAMERIACEAE Krameria erecta Willd. ex J.A. Schultes littleleaf ratany Krameria grayi Rose & Painter white ratany Krameria parvifolia Benth. = Krameria erecta LABIATAE Agastache urticifolia (Benth.) Kuntze nettleleaf giant hyssop Ajuga reptans L. common bugle Calamintha vulgaris (L.) HalÝcsy non Clairv. = Clinopodium vulgare Clinopodium vulgare L. wild basil Dracocephalum parviflorum Nutt. American dragonhead Dracocephalum thymiflorum L. thymeleaf dragonhead Glechoma hederacea L. groundivy Hedeoma drummondii Benth. Drummond's falsepennyroyal Hedeoma nana (Torr.) Briq. falsepennyroyal Lamium amplexicaule L. henbit deadnettle Lamium purpureum L. purple deadnettle Leonurus cardiaca L. common motherwort Lycopus americanus Muhl. ex W. Bart. American waterhorehound Lycopus asper Greene rough bugleweed Marrubium vulgare L. horehound Mentha X piperita L. (pro sp.) peppermint Mentha aquatica L. water mint Mentha arvensis L. wild mint Mentha arvensis auct. non L. = Mentha canadensis Mentha canadensis L. Canadian mint Mentha spicata L. spearmint Mentha viridis L. = Mentha spicata Moluccella laevis L. shellflower Monarda fistulosa L. wildbergamot beebalm Monarda fistulosa ssp. fistulosa L. wildbergamot beebalm Monarda fistulosa ssp. fistulosa var. menthifolia (Graham) Fern. mintleaf beebalm Monarda menthifolia Graham = Monarda fistulosa ssp. fistulosa var. menthifolia Monarda pectinata Nutt. pony beebalm Monardella odoratissima Benth. Pacific monardella Nepeta cataria L. catnip Physostegia parviflora Nutt. ex Gray western false dragonhead Physostegia virginiana (L.) Benth. obedient plant Poliomintha incana (Torr.) Gray hoary rosemarymint Prunella vulgaris L. common selfheal Salazaria mexicana Torr. Mexican bladdersage Salvia azurea Michx. ex Lam. azure blue sage Salvia columbariae Benth. chia Salvia dorrii (Kellogg) Abrams grayball sage Salvia dorrii ssp. dorrii (Kellogg) Abrams Dorr's sage Salvia officinalis L. kitchen sage Salvia reflexa Hornem. lanceleaf sage Salvia sclarea L. Europe sage Scutellaria antirrhinoides Benth. nose skullcap Scutellaria epilobiifolia A. Hamilton = Scutellaria galericulata Scutellaria galericulata L. marsh skullcap Scutellaria nana Gray dwarf skullcap Scutellaria sapphirina (Barneby) Olmstead White Pine skullcap Stachys albens Gray whitestem hedgenettle Stachys byzantina K. Koch ex Scheele woolly hedgenettle Stachys palustris L. marsh hedgenettle Stachys rothrockii Gray Rothrock's hedgenettle Teucrium canadense L. Canada germander Teucrium canadense var. occidentale (Gray) McClintock & Epling western germander Thymus praecox Opiz mother of thyme LEGUMINOSAE Acacia greggii Gray catclaw acacia Anthyllis vulneraria L. common kidneyvetch Astragalus adsurgens Pallas standing milkvetch Astragalus agrestis Dougl. ex G. Don purple milkvetch Astragalus alpinus L. alpine milkvetch Astragalus amphioxys Gray Crescent milkvetch Astragalus ampullarius S. Wats. gumbo milkvetch Astragalus anserinus Atwood, Goodrich & Welsh Goose Creek milkvetch Astragalus aretioides (M.E. Jones) Barneby cushion milkvetch Astragalus argophyllus Nutt. silverleaf milkvetch Astragalus asclepiadoides M.E. Jones milkweed milkvetch Astragalus australis (L.) Lam. Indian milkvetch Astragalus beckwithii Torr. & Gray Beckwith's milkvetch Astragalus bisulcatus (Hook.) Gray twogrooved milkvetch Astragalus bodinii Sheldon Bodin's milkvetch Astragalus brandegei Porter Brandegee's milkvetch Astragalus callithrix Barneby Callaway milkvetch Astragalus calycosus Torr. ex S. Wats. matted poison milkvetch Astragalus canadensis L. Canadian milkvetch Astragalus ceramicus Sheldon painted milkvetch Astragalus chamaeleuce Gray cicada milkvetch Astragalus chamaemeniscus Barneby ground-crescent milkvetch Astragalus chloodes Barneby grass milkvetch Astragalus cibarius Sheldon silky milkvetch Astragalus cicer L. cicer milkvetch Astragalus coltonii M.E. Jones Colton's milkvetch Astragalus convallarius Greene timber milkvetch Astragalus cronquistii Barneby Cronquist's milkvetch Astragalus curvicarpus (Heller) J.F. Macbr. curvepod milkvetch Astragalus cymboides M.E. Jones canoe milkvetch Astragalus desereticus Barneby deseret milkvetch Astragalus desperatus M.E. Jones rimrock milkvetch Astragalus detritalis M.E. Jones debris milkvetch Astragalus diversifolius Gray meadow milkvetch Astragalus drummondii Dougl. ex Hook. Drummond's milkvetch Astragalus duchesnensis M.E. Jones Duchesne milkvetch Astragalus eastwoodiae M.E. Jones Eastwood's milkvetch Astragalus emoryanus (Rydb.) Cory Emory's milkvetch Astragalus ensiformis M.E. Jones pagumpa milkvetch Astragalus episcopus S. Wats. bishop's milkvetch Astragalus eremiticus Sheldon hermit milkvetch Astragalus eurekensis M.E. Jones Eureka milkvetch Astragalus falcatus Lam. Russian milkvetch Astragalus filipes Torr. ex Gray threadstalk milkvetch Astragalus flavus Nutt. yellow milkvetch Astragalus flexuosus (Hook.) Dougl. ex G. Don flexile milkvetch Astragalus fucatus Barneby Hopi milkvetch Astragalus geyeri Gray Geyer's milkvetch Astragalus gilviflorus Sheldon plains milkvetch Astragalus hallii Gray Hall's milkvetch Astragalus hamiltonii C.L. Porter Hamilton's milkvetch Astragalus harrisonii Barneby Harrison's milkvetch Astragalus holmgreniorum Barneby Paradox milkvetch Astragalus humistratus Gray groundcover milkvetch Astragalus iodanthus S. Wats. Humboldt River milkvetch Astragalus iselyi Welsh Isely's milkvetch Astragalus jejunus S. Wats. starveling milkvetch Astragalus kentrophyta Gray spiny milkvetch Astragalus lentiginosus Dougl. ex Hook. specklepod milkvetch Astragalus limnocharis Barneby Cedar Breaks milkvetch Astragalus loanus Barneby Glenwood milkvetch Astragalus lonchocarpus Torr. rushy milkvetch Astragalus lutosus M.E. Jones Dragon milkvetch Astragalus malacoides Barneby Kaiparowits milkvetch Astragalus megacarpus (Nutt.) Gray great bladdery milkvetch Astragalus miser Dougl. weedy milkvetch Astragalus missouriensis Nutt. Missouri milkvetch Astragalus moencoppensis M.E. Jones Moenkopi milkvetch Astragalus mollissimus Torr. woolly milkvetch Astragalus monumentalis Barneby Monument Valley milkvetch Astragalus musiniensis M.E. Jones Ferron's milkvetch Astragalus nelsonianus Barneby Nelson's milkvetch Astragalus newberryi Gray Newberry's milkvetch Astragalus nidularius Barneby birdnest milkvetch Astragalus nuttallianus DC. smallflowered milkvetch Astragalus oophorus S. Wats. egg milkvetch Astragalus pardalinus (Rydb.) Barneby panther milkvetch Astragalus pattersonii Gray Patterson's milkvetch Astragalus perianus Barneby Rydberg's milkvetch Astragalus pinonis M.E. Jones pinyon milkvetch Astragalus piscator Barneby & Welsh Fisher milkvetch Astragalus piutensis Barneby & Mabberley Sevier milkvetch Astragalus platytropis Gray broadkeel milkvetch Astragalus praelongus Sheldon stinking milkvetch Astragalus preussii Gray Preuss' milkvetch Astragalus pubentissimus Torr. & Gray Green River milkvetch Astragalus purshii Dougl. ex Hook. woollypod milkvetch Astragalus racemosus Pursh alkali poisonvetch Astragalus rafaelensis M.E. Jones San Rafael milkvetch Astragalus robbinsii (Oakes) Gray Robbins' milkvetch Astragalus sabulonum Gray gravel milkvetch Astragalus sabulosus M.E. Jones Cisco milkvetch Astragalus saurinus Barneby Dinosaur milkvetch Astragalus scopulorum Porter Rocky Mountain milkvetch Astragalus serpens M.E. Jones plateau milkvetch Astragalus sesquiflorus S. Wats. sandstone milkvetch Astragalus spatulatus Sheldon tufted milkvetch Astragalus straturensis M.E. Jones Pine Valley milkvetch Astragalus striatiflorus M.E. Jones escarpment milkvetch Astragalus subcinereus Gray Silver's milkvetch Astragalus tenellus Pursh looseflower milkvetch Astragalus tephrodes Gray ashen milkvetch Astragalus tetrapterus Gray fourwing milkvetch Astragalus toanus M.E. Jones Toano milkvetch Astragalus uncialis Barneby currant milkvetch Astragalus utahensis (Torr.) Torr. & Gray Utah milkvetch Astragalus wardii Gray Ward's milkvetch Astragalus welshii Barneby Loa milkvetch Astragalus wetherillii M.E. Jones Wetherill's milkvetch Astragalus wingatanus S. Wats. Fort Wingate milkvetch Astragalus woodruffii M.E. Jones Woodruff's milkvetch Astragalus zionis M.E. Jones Zion milkvetch Caesalpinia repens Eastw. nicker Caragana arborescens Lam. Siberian peashrub Cercis canadensis L. eastern redbud Cercis canadensis var. texensis (S. Wats.) M. Hopkins California redbud Cladrastis kentukea (Dum.-Cours.) Rudd Kentucky yellowwood Colutea arborescens L. bladder senna Coronilla varia L. purple crownvetch Cytisus scoparius (L.) Link scotchbroom Dalea candida Willd. slender white prairieclover Dalea flavescens (S. Wats.) Welsh Canyonlands prairieclover Dalea lanata Spreng. woolly prairieclover Dalea searlsiae (Gray) Barneby Searls' prairieclover Galega officinalis L. professorweed Gleditsia triacanthos L. honeylocust Glycyrrhiza lepidota Pursh American licorice Hedysarum boreale Nutt. northern sweetvetch Hedysarum occidentale Greene western sweetvetch Lathyrus brachycalyx Rydb. Bonneville peavine Lathyrus eucosmus Butters & St. John bush vetchling Lathyrus laetivirens Greene ex Rydb. aspen peavine Lathyrus lanszwertii Kellogg thickleaf peavine Lathyrus latifolius L. perennial peavine Lathyrus pauciflorus Fern. fewflower peavine Lathyrus sylvestris L. flat peavine Lespedeza thunbergii (DC.) Nakai Thunberg's lespedeza Lotus corniculatus L. birdfoot deervetch Lotus denticulatus (E. Drew) Greene riverbar birdsfoot trefoil Lotus humistratus Greene foothill deervetch Lotus plebeius (Brand) Barneby New Mexico birdsfoot trefoil Lotus rigidus (Benth.) Greene shrubby deervetch Lotus tenuis Waldst. & Kit. ex Willd. narrowleaf birdsfoot trefoil Lotus utahensis Ottley Utah birdsfoot trefoil Lotus wrightii (Gray) Greene Wright's deervetch Lupinus ammophilus Greene sand lupine Lupinus arbustus Dougl. ex Lindl. longspur lupine Lupinus argenteus Pursh silvery lupine Lupinus aridus Dougl. desert lupine Lupinus barbiger S. Wats. bearded lupine Lupinus brevicaulis S. Wats. shortstem lupine Lupinus burkei S. Wats. largeleaf lupine Lupinus caespitosus Nutt. stemless dwarf lupine Lupinus caudatus Kellogg tailcup lupine Lupinus concinnus J.G. Agardh scarlet lupine Lupinus flavoculatus Heller yelloweyes Lupinus jonesii Rydb. Jones' lupine Lupinus kingii S. Wats. King's lupine Lupinus latifolius Lindl. ex J.G. Agardh broadleaf lupine Lupinus lepidus Dougl. ex Lindl. Pacific lupine Lupinus leucophyllus Dougl. ex Lindl. velvet lupine Lupinus palmeri S. Wats. bluebonnet lupine Lupinus polyphyllus Lindl. bigleaf lupine Lupinus prunophilus M.E. Jones hairy bigleaf lupine Lupinus pusillus Pursh rusty lupine Lupinus sericeus Pursh silky lupine Lupinus sparsiflorus Benth. Mojave lupine Lupinus wyethii S. Wats. Wyeth's lupine Medicago lupulina L. black medick Medicago sativa L. alfalfa Melilotus albus Medik. = Melilotus officinalis Melilotus indicus (L.) All. annual yellow sweetclover Melilotus officinalis (L.) Lam. yellow sweetclover Onobrychis viciifolia Scop. sainfoin Oxytropis borealis DC. Oxytropis campestris (L.) DC. cold mountain crazyweed Oxytropis deflexa (Pallas) DC. hangpod crazyweed Oxytropis lambertii Pursh Lambert's crazyweed Oxytropis multiceps Nutt. southwestern locoweed Oxytropis nana Nutt. Wyoming locoweed Oxytropis oreophila Gray roundleaf crazyweed Oxytropis parryi Gray Parry's crazyweed Oxytropis sericea Nutt. silvery oxytrope Parryella filifolia Torr. & Gray ex Gray common dunebroom Pediomelum aromaticum (Payson) W.A. Weber aromatic Indian breadroot Pediomelum megalanthum (Woot. & Standl.) Rydb. Intermountain Indian breadroot Pediomelum mephiticum (S. Wats.) Rydb. skunktop Pediomelum pariense (Welsh & Atwood) J. Grimes Paria River scurfpea Peteria thompsoniae S. Wats. Thompson's peteria Prosopis glandulosa Torr. honey mesquite Prosopis pubescens Benth. screwbean mesquite Psoralidium junceum (Eastw.) Rydb. rush lemonweed Psoralidium lanceolatum (Pursh) Rydb. lemon scurfpea Psoralidium tenuiflorum (Pursh) Rydb. slimflower scurfpea Psorothamnus arborescens (Torr. ex Gray) Barneby Mojave dalea Psorothamnus fremontii (Torr. ex Gray) Barneby Fremont's dalea Psorothamnus polydenius (Torr. ex S. Wats.) Rydb. Nevada smokebush Psorothamnus thompsoniae (Vail) Welsh & Atwood Thompson's smokebush Robinia hispida L. bristly locust Robinia neomexicana Gray New Mexico locust Robinia pseudoacacia L. black locust Sophora nuttalliana B.L. Turner silky sophora Sophora stenophylla Gray fringeleaf necklacepod Spartium junceum L. Spanish broom Sphaerophysa salsula (Pallas) DC. alkali swainsonpea Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richards. prairie thermopsis Thermopsis rhombifolia var. montana (Nutt.) Isely mountain thermopsis Trifolium andersonii Gray fiveleaf clover Trifolium andinum Nutt. Andes clover Trifolium dasyphyllum Torr. & Gray alpine clover Trifolium eriocephalum Nutt. woollyhead clover Trifolium fragiferum L. strawberry clover Trifolium gymnocarpon Nutt. hollyleaf clover Trifolium hybridum L. alsike clover Trifolium kingii S. Wats. King's clover Trifolium longipes Nutt. longstalk clover Trifolium nanum Torr. dwarf clover Trifolium parryi Gray Parry's clover Trifolium pratense L. red clover Trifolium repens L. white clover Trifolium variegatum Nutt. whitetip clover Trifolium wormskioldii Lehm. cows clover Trigonella corniculata (L.) L. cultivated fenugreek Vicia americana Muhl. ex Willd. American vetch Vicia faba L. horsebean Vicia ludoviciana Nutt. Louisiana vetch Vicia villosa Roth winter vetch Wisteria floribunda (Willd.) DC. Japanese wisteria Wisteria frutescens (L.) Poir. American wisteria LEMNACEAE Lemna gibba L. swollen duckweed Lemna minor L. common duckweed Lemna minuta Kunth least duckweed Lemna obscura (Austin) Daubs little duckweed Lemna trisulca L. star duckweed Lemna valdiviana Phil. valdivia duckweed Spirodela polyrrhiza (L.) Schleid. common duckweed Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi northern watermeal Wolffia braziliensis Weddell Brazilian watermeal LENTIBULARIACEAE Utricularia intermedia Hayne flatleaf bladderwort Utricularia macrorhiza Le Conte common bladderwort Utricularia minor L. lesser bladderwort LILIACEAE Allium acuminatum Hook. tapertip onion Allium atrorubens S. Wats. darkred onion Allium bisceptrum S. Wats. twincrest onion Allium brandegei S. Wats. Brandegee's onion Allium brevistylum S. Wats. shortstyle onion Allium campanulatum S. Wats. dusky onion Allium cernuum Roth nodding onion Allium geyeri S. Wats. Geyer's onion Allium macropetalum Rydb. largeflower wild onion Allium nevadense S. Wats. Nevada onion Allium parvum Kellogg small onion Allium passeyi N.& A. Holmgren Passey's onion Allium textile A. Nels. & J.F. Macbr. textile onion Androstephium breviflorum S. Wats. pink funnellily Asparagus officinalis L. garden asparagus Calochortus ambiguus (M.E. Jones) Ownbey doubting Mariposa lily Calochortus aureus S. Wats. golden Mariposa lily Calochortus bruneaunis A. Nels. & J.F. Macbr. Bruneau Mariposa lily Calochortus flexuosus S. Wats. winding Mariposa lily Calochortus gunnisonii S. Wats. Gunnison's Mariposa lily Calochortus kennedyi Porter desert Mariposa lily Calochortus nuttallii Torr. & Gray sego lily Camassia quamash (Pursh) Greene small camas Dichelostemma capitatum (Benth.) Wood bluedicks Disporum trachycarpum (S. Wats.) Benth. & Hook. f. roughfruit fairybells Eremocrinum albomarginatum (M.E. Jones) M.E. Jones lonely lily Erythronium grandiflorum Pursh dogtooth lily Fritillaria atropurpurea Nutt. spotted missionbells Fritillaria pudica (Pursh) Spreng. yellow missionbells Galanthus nivalis L. snowdrop Leucocrinum montanum Nutt. ex Gray common starlily Lloydia serotina (L.) Reichenb. common alplily Maianthemum racemosum (L.) Link feathery false Solomon's seal Maianthemum racemosum ssp. racemosum (L.) Link feather Solomon's seal Maianthemum stellatum (L.) Link starry false Solomon's seal Ornithogalum umbellatum L. sleepydick Smilacina racemosa (L.) Desf. = Maianthemum racemosum ssp. racemosum Smilacina stellata (L.) Desf. = Maianthemum stellatum Streptopus amplexifolius (L.) DC. claspleaf twistedstalk Triteleia grandiflora Lindl. wild hyacinth Veratrum californicum Dur. California false hellebore Zigadenus elegans Pursh mountain deathcamas Zigadenus paniculatus (Nutt.) S. Wats. foothill deathcamas Zigadenus vaginatus (Rydb.) J.F. Macbr. sheathed deathcamas Zigadenus venenosus S. Wats. meadow deathcamas LIMNANTHACEAE Floerkea proserpinacoides Willd. false mermaidweed LINACEAE Linum aristatum Engelm. bristle flax Linum australe Heller southern flax Linum kingii S. Wats. King's flax Linum lewisii Pursh prairie flax Linum perenne L. blue flax Linum puberulum (Engelm.) Heller plains flax Linum subteres (Trel.) Winkl. sprucemont flax LOASACEAE Eucnide urens (Parry ex Gray) Parry desert stingbush Mentzelia albicaulis (Dougl. ex Hook.) Dougl. ex Torr. & Gray whitestem blazingstar Mentzelia argillosa J. Darl. Arapien blazingstar Mentzelia cronquistii H.J. Thompson & Prigge Cronquist's blazingstar Mentzelia dispersa S. Wats. bushy blazingstar Mentzelia laevicaulis (Dougl. ex Hook.) Torr. & Gray smoothstem blazingstar Mentzelia marginata (Osterhout) H.J. Thompson & Prigge Colorado blazingstar Mentzelia montana (A. Davids.) A. Davids. variegatedbract blazingstar Mentzelia multicaulis (Osterhout) A. Nels. ex J. Darl. manystem blazingstar Mentzelia multiflora (Nutt.) Gray manyflowered mentzelia Mentzelia nitens Greene shining blazingstar Mentzelia obscura H.J. Thompson & Roberts Pacific blazingstar Mentzelia pterosperma Eastw. wingseed blazingstar Mentzelia pumila Nutt. ex Torr. & Gray dwarf mentzelia Mentzelia rusbyi Woot. Rusby's blazingstar Mentzelia shultziorum Prigge Shultz's blazingstar Mentzelia thompsonii Glad. Thompson's blazingstar Mentzelia tricuspis Gray spinyhair blazingstar Petalonyx nitidus S. Wats. shinyleaf sandpaper plant Petalonyx parryi Gray Parry's sandpaper plant LYTHRACEAE Ammannia coccinea Rottb. valley redstem Didiplis diandra (Nutt. ex DC.) Wood waterpurslane Lythrum californicum Torr. & Gray California loosestrife Lythrum salicaria L. purple loosestrife MAGNOLIACEAE Liriodendron tulipifera L. tuliptree MALVACEAE Abutilon P. Mill. Indian mallow Abutilon parvulum Gray dwarf Indian mallow Abutilon theophrasti Medik. velvetleaf Alcea rosea L. hollyhock Althaea rosea (L.) Cav. = Alcea rosea Eremalche exilis (Gray) Greene white mallow Hibiscus trionum L. flower of an hour Iliamna rivularis (Dougl. ex Hook.) Greene streambank globemallow Malva neglecta Wallr. common mallow Malva rotundifolia auct. non L. = Malva neglecta Malva verticillata L. cluster mallow Malvella leprosa (Ortega) Krapov. alkali mallow Sidalcea candida Gray white checkermallow Sidalcea neomexicana Gray New Mexico checkermallow Sidalcea oregana (Nutt. ex Torr. & Gray) Gray Oregon checkermallow Sphaeralcea ambigua Gray desert globemallow Sphaeralcea caespitosa M.E. Jones tufted globemallow Sphaeralcea coccinea (Nutt.) Rydb. scarlet globemallow Sphaeralcea grossulariifolia (Hook. & Arn.) Rydb. gooseberryleaf globemallow Sphaeralcea janeae (Welsh) Welsh Jane's globemallow Sphaeralcea leptophylla (Gray) Rydb. scaly globemallow Sphaeralcea munroana (Dougl. ex Lindl.) Spach ex Gray Munro's globemallow Sphaeralcea parvifolia A. Nels. smallflower globemallow Sphaeralcea psoraloides Welsh psoralea globemallow Sphaeralcea rusbyi Gray Rusby's globemallow MARSILEACEAE Marsilea oligospora Goodding Pacific waterclover Marsilea vestita Hook. & Grev. hairy pepperwort MELIACEAE Melia azedarach L. Chinaberrytree MENYANTHACEAE Menyanthes trifoliata L. common buckbean MOLLUGINACEAE Mollugo cerviana (L.) Ser. threadstem carpetweed MONOTROPACEAE Pterospora andromedea Nutt. woodland pinedrops MORACEAE Ficus carica L. commonfig Morus alba L. white mulberry Morus nigra L. black mulberry NAJADACEAE Najas flexilis (Willd.) Rostk. & Schmidt nodding waternymph Najas guadalupensis (Spreng.) Magnus southern waternymph Najas marina L. spiny naiad NYCTAGINACEAE Abronia argillosa Welsh & Goodrich clay sand verbena Abronia fragrans Nutt. ex Hook. snowball sand verbena Abronia mellifera Dougl. ex Hook. white sand verbena Abronia nana S. Wats. dwarf sand verbena Abronia villosa S. Wats. desert sand verbena Allionia incarnata L. trailing windmills Boerhavia spicata Choisy creeping spiderling Mirabilis alipes (S. Wats.) Pilz winged four o'clock Mirabilis bigelovii Gray neakstem four o'clock Mirabilis decipiens (Standl.) Standl. broadleaf four o'clock Mirabilis linearis (Pursh) Heimerl narrowleaf four o'clock Mirabilis multiflora (Torr.) Gray Colorado four o'clock Mirabilis nyctaginea (Michx.) MacM. heartleaf four o'clock Mirabilis oxybaphoides (Gray) Gray smooth spreading four o'clock Mirabilis pumila (Standl.) Standl. dwarf four o'clock Selinocarpus diffusus Gray spreading moonpod Selinocarpus nevadensis (Standl.) Fowler & Turner desert moonpod Tripterocalyx carnea (Greene) L.A. Gal. winged sandpuffs Tripterocalyx micranthus (Torr.) Hook. smallflower sandverbena NYMPHAEACEAE Nuphar lutea (L.) Sm. yellow pondlily Nuphar lutea ssp. polysepala (Engelm.) E.O. Beal Rocky Mountain pondlily Nymphaea odorata Ait. American white waterlily OLEACEAE Forestiera pubescens Nutt. stretchberry Forsythia suspensa (Thunb.) Vahl weeping forsythia Fraxinus anomala Torr. ex S. Wats. singleleaf ash Fraxinus pennsylvanica Marsh. green ash Fraxinus velutina Torr. velvet ash Menodora scabra Gray rough menodora Menodora spinescens Gray spiny menodora ONAGRACEAE Calylophus lavandulifolius (Torr. & Gray) Raven lavenderleaf sundrops Camissonia andina (Nutt.) Raven sundrops eveningprimrose Camissonia atwoodii Cronq. Atwood's camissonia Camissonia boothii (Dougl. ex Lehm.) Raven Booth's eveningprimrose Camissonia breviflora (Torr. & Gray) Raven fewflower eveningprimrose Camissonia brevipes (Gray) Raven yellow cups Camissonia californica (Nutt. ex Torr. & Gray) Raven California suncup Camissonia chamaenerioides (Gray) Raven longcapsule suncup Camissonia claviformis (Torr. & Frem.) Raven browneyes Camissonia eastwoodiae (Munz) Raven Grand Junction camissonia Camissonia gouldii Raven Diamond Valley suncup Camissonia minor (A. Nels.) Raven small eveningprimrose Camissonia multijuga (S. Wats.) Raven froststem suncup Camissonia parryi (S. Wats.) Raven redclay suncup Camissonia parvula (Nutt. ex Torr. & Gray) Raven Lewis River suncup Camissonia pterosperma (S. Wats.) Raven wingfruit suncup Camissonia pusilla Raven little wiry suncup Camissonia refracta (S. Wats.) Raven narrowleaf suncup Camissonia scapoidea (Nutt. ex Torr. & Gray) Raven barestem eveningprimrose Camissonia subacaulis (Pursh) Raven diffuseflower eveningprimrose Camissonia walkeri (A. Nels.) Raven Walker's suncup Circaea alpina L. small enchanter's nightshade Clarkia rhomboidea Dougl. ex Hook. diamond fairyfan Epilobium anagallidifolium Lam. alpine willowherb Epilobium angustifolium L. fireweed Epilobium brachycarpum K. Presl autumn willowweed Epilobium canum (Greene) Raven hummingbird trumpet Epilobium ciliatum Raf. hairy willowherb Epilobium clavatum Trel. clubfruit willowherb Epilobium densiflorum (Lindl.) Hoch & Raven Epilobium glaberrimum Barbey smooth willowweed Epilobium halleanum Hausskn. glandular willowherb Epilobium hornemannii Reichenb. Hornemann's willowherb Epilobium lactiflorum Hausskn. milkflower willowweed Epilobium latifolium L. dwarf fireweed Epilobium leptophyllum Raf. bog willowherb Epilobium nevadense Munz Nevada willowherb Epilobium palustre L. marsh willowherb Epilobium pygmaeum (Speg.) Hoch & Raven Epilobium saximontanum Hausskn. Rocky Mountain willowherb Gaura coccinea Nutt. ex Pursh scarlet beeblossom Gaura parviflora Dougl. ex Lehm. velvetweed Gayophytum decipiens Lewis & Szweykowski deceptive groundsmoke Gayophytum diffusum Torr. & Gray spreading groundsmoke Gayophytum humile Juss. dwarf groundsmoke Gayophytum racemosum Torr. & Gray blackfoot groundsmoke Gayophytum ramosissimum Torr. & Gray pinyon groundsmoke Oenothera acutissima W.L. Wagner Flaming Gorge eveningprimrose Oenothera albicaulis Pursh whitest eveningprimrose Oenothera biennis L. common eveningprimrose Oenothera californica (S. Wats.) S. Wats. California eveningprimrose Oenothera cavernae Munz cavedwelling eveningprimrose Oenothera cespitosa Nutt. tufted eveningprimrose Oenothera coronopifolia Torr. & Gray crownleaf eveningprimrose Oenothera deltoides Torr. & Frem. birdcage eveningprimrose Oenothera elata Kunth Hooker's eveningprimrose Oenothera flava (A. Nels.) Garrett yellow eveningprimrose Oenothera howardii (A. Nels.) W.L. Wagner Howard's eveningprimrose Oenothera longissima Rydb. longstem eveningprimrose Oenothera pallida Lindl. pale eveningprimrose Oenothera primiveris Gray desert eveningprimrose Oenothera speciosa Nutt. pinkladies Zauschneria californica ssp. latifolia (Hook.) Keck = Epilobium canum ssp. latifolium Zauschneria latifolia (Hook.) Greene = Epilobium canum ssp. latifolium Zauschneria latifolia var. arizonica (A. Davids.) Hilend = Epilobium canum ssp. latifolium OPHIOGLOSSACEAE Botrychium lanceolatum (Gmel.) Angstr. lanceleaf grapefern Botrychium lunaria (L.) Sw. common moonwort Botrychium pinnatum St. John northern moonwort Botrychium simplex E. Hitchc. little grapefern ORCHIDACEAE Calypso bulbosa (L.) Oakes fairyslipper orchid Coeloglossum viride (L.) Hartman longbract frog orchid Corallorrhiza maculata (Raf.) Raf. summer coralroot Corallorrhiza striata Lindl. hooded coralroot Corallorrhiza trifida Chatelain yellow coralroot Corallorrhiza wisteriana Conrad spring coralroot Cypripedium calceolus ssp. parviflorum (Salisb.) Hulten = Cypripedium parviflorum Cypripedium fasciculatum Kellogg ex S. Wats. clustered lady's slipper Cypripedium parviflorum Salisb. lesser yellow lady's slipper Epipactis gigantea Dougl. ex Hook. giant helleborine Goodyera oblongifolia Raf. western rattlesnake plantain Listera borealis Morong northern twayblade Listera convallarioides (Sw.) Nutt. ex Ell. broadlipped twayblade Listera cordata (L.) R. Br. ex Ait. f. heartleaf twayblade Piperia unalascensis (Spreng.) Rydb. Alaska rein orchid Platanthera dilatata (Pursh) Lindl. ex Beck boreal bog orchid Platanthera dilatata var. albiflora (Cham.) Ledeb. scentbottle Platanthera hyperborea (L.) Lindl. northern green orchid Platanthera obtusata (Banks ex Pursh) Lindl. blunt bog orchid Platanthera sparsiflora (S. Wats.) Schlechter canyon bog orchid Platanthera stricta Lindl. Modoc bog orchid Platanthera zothecina (Higgins & Welsh) Kartesz & Gandhi alcove bog orchid Spiranthes cernua (L.) L.C. Rich. nodding ladiestresses Spiranthes diluvialis Sheviak diluvim ladiestresses Spiranthes porrifolia Lindl. creamy ladiestresses Spiranthes romanzoffiana Cham. hooded ladiestresses Spiranthes unalascensis Spreng. = Piperia unalascensis OROBANCHACEAE Orobanche cooperi (Gray) Heller desert broomrape Orobanche corymbosa (Rydb.) Ferris flattop broomrape Orobanche fasciculata Nutt. clustered broomrape Orobanche ludoviciana Nutt. Louisiana broomrape Orobanche uniflora L. oneflowered broomrape OXALIDACEAE Oxalis corniculata L. creeping woodsorrel Oxalis dillenii Jacq. Dillen's oxalis = Oxalis corniculata PAEONIACEAE Paeonia brownii Dougl. ex Hook. Brown's peony PAPAVERACEAE Arctomecon humilis Coville common bearpoppy Argemone corymbosa Greene Mojave pricklypoppy Argemone munita Dur. & Hilg. flatbud pricklypoppy Eschscholzia californica Cham. California poppy Eschscholzia glyptosperma Greene desert goldenpoppy Eschscholzia minutiflora S. Wats. pygmy goldenpoppy Papaver glaucum Boiss. & Hausskn. tulip poppy Papaver lapponicum (Tolm.) Nordh. Arctic poppy Papaver orientale L. oriental poppy Papaver rhoeas L. corn poppy Platystemon californicus Benth. California creamcups Roemeria refracta DC. spotted Asianpoppy PEDALIACEAE Proboscidea parviflora (Woot.) Woot. & Standl. devils claw PINACEAE Abies concolor (Gord. & Glend.) Lindl. ex Hildebr. white fir Abies lasiocarpa (Hook.) Nutt. subalpine fir Larix occidentalis Nutt. western larch Picea engelmannii Parry ex Engelm. Engelmann's spruce Picea pungens Engelm. blue spruce Pinus contorta Dougl. ex Loud. lodgepole pine Pinus edulis Engelm. twoneedle pinyon Pinus flexilis James limber pine Pinus jeffreyi Grev. & Balf. Jeffrey 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 mugo Turra mugo pine Pinus ponderosa P.& C. Lawson ponderosa pine Pinus sylvestris L. Scotch pine Pseudotsuga menziesii (Mirbel) Franco Douglas fir PLANTAGINACEAE Plantago elongata Pursh longleaf plantain Plantago eriopoda Torr. redwool plantain Plantago lanceolata L. narrowleaf plantain Plantago major L. common plantain Plantago ovata Forsk. desert Indianwheat Plantago patagonica Jacq. woolly plantain Plantago tweedyi Gray Tweedy's plantain PLATANACEAE Platanus occidentalis L. American sycamore POLEMONIACEAE Allophyllum gilioides (Benth.) A.& V. Grant dense false gilyflower Collomia debilis (S. Wats.) Greene alpine mountaintrumpet Collomia linearis Nutt. narrowleaf mountaintrumpet Collomia tenella Gray diffuse mountaintrumpet Collomia tinctoria Kellogg yellowstaining mountaintrumpet Eriastrum diffusum (Gray) Mason miniature woolstar Eriastrum eremicum (Jepson) Mason desert woolstar Eriastrum sparsiflorum (Eastw.) Mason Great Basin woolstar Gilia caespitosa Gray Rabbit Valley gilia Gilia capillaris Kellogg miniature gilia Gilia filiformis Parry ex Gray yellow gilia Gilia flavocincta A. Nels. lesser yellowthroat gilia Gilia haydenii Gray San Juan gilia Gilia hutchinsifolia Rydb. desert pale gilia Gilia inconspicua (Sm.) Sweet shy gilia Gilia latifolia S. Wats. broadleaf gilia Gilia leptantha Parish fineflower gilia Gilia leptomeria Gray sand gilia Gilia pinnatifida Nutt. ex Gray sticky gilia Gilia scopulorum M.E. Jones rock gilia Gilia stellata Heller star gilia Gilia stenothyrsa Gray Uinta Basin gilia Gilia subnuda Torr. ex Gray coral gilia Gilia tenerrima Gray delicate gilia Gymnosteris Greene gymnosteris Gymnosteris parvula Heller smallflower gymnosteris Ipomopsis aggregata (Pursh) V. Grant skyrocket gilia Ipomopsis congesta (Hook.) V. Grant ballhead gilia Ipomopsis depressa (M.E. Jones ex Gray) V. Grant depressed skyrocket Ipomopsis gunnisonii (Torr. & Gray) V. Grant sanddune skyrocket Ipomopsis longiflora (Torr.) V. Grant flaxflowered gilia Ipomopsis polycladon (Torr.) V. Grant manybranched gilia Ipomopsis pumila (Nutt.) V. Grant dwarf gilia Ipomopsis roseata (Rydb.) V. Grant rosy skyrocket Ipomopsis spicata (Nutt.) V. Grant spiked gilia Ipomopsis tridactyla (Rydb.) Wilken, comb. nov. ined. Cedar Breaks gilia Langloisia setosissima (Torr. & Gray ex Torr.) Greene moth langloisia Leptodactylon caespitosum Nutt. mat pricklygilia Leptodactylon pungens (Torr.) Torr. ex Nutt. granite pricklygilia Leptodactylon watsonii (Gray) Rydb. Watson's pricklygilia Linanthus aureus (Nutt.) Greene golden deserttrumpets Linanthus bigelovii (Gray) Greene Bigelow's deserttrumpets Linanthus demissus (Gray) Greene desertsnow Linanthus dichotomus Benth. eveningsnow Linanthus harknessii (Curran) Greene Harkness' flaxflower Linanthus nuttallii (Gray) Greene ex Milliken Nuttall's deserttrumpets Linanthus septentrionalis Mason northern linanthus Loeseliastrum schottii (Torr.) Timbrook Schott's calico Navarretia breweri (Gray) Greene Brewer's navarretia Navarretia intertexta (Benth.) Hook. needleleaf navarretia Phlox austromontana Coville desert phlox Phlox cluteana A. Nels. Navajo Mountain phlox Phlox gladiformis (M.E. Jones) E. Nels. musky phlox Phlox gracilis (Hook.) Greene slender phlox Phlox griseola Wherry grayleaf phlox Phlox hoodii Richards. spiny phlox Phlox jonesii Wherry Zion phlox Phlox longifolia Nutt. longleaf phlox Phlox multiflora A. Nels. flowery phlox Phlox pulvinata (Wherry) Cronq. cushion phlox Polemonium foliosissimum Gray towering Jacobsladder Polemonium micranthum Benth. annual polemonium Polemonium occidentale Greene western polemonium Polemonium pulcherrimum Hook. skunkleaf polemonium Polemonium viscosum Nutt. sticky polemonium POLYGALACEAE Polygala acanthoclada Gray desert polygala Polygala californica Nutt. California milkwort Polygala intermontana T. Wendt Intermountain milkwort Polygala subspinosa S. Wats. spiny polygala Polygala verticillata L. whorled milkwort POLYGONACEAE Centrostegia thurberi Gray ex Benth. red triangles Chorizanthe brevicornu Torr. brittle spineflower Chorizanthe rigida (Torr.) Torr. & Gray devil's spineflower Eriogonum alatum Torr. winged buckwheat Eriogonum ammophilum Reveal ibex buckwheat Eriogonum aretioides Barneby Red Canyon buckwheat Eriogonum baileyi S. Wats. Bailey's buckwheat Eriogonum batemanii M.E. Jones Bateman's buckwheat Eriogonum bicolor M.E. Jones pretty buckwheat Eriogonum brachypodum Torr. & Gray Parry's buckwheat Eriogonum brevicaule Nutt. shortstem buckwheat Eriogonum caespitosum Nutt. matted buckwheat Eriogonum cernuum Nutt. nodding buckwheat Eriogonum clavellatum Small Comb Wash buckwheat Eriogonum contortum Small grand buckwheat Eriogonum corymbosum Benth. crispleaf buckwheat Eriogonum cronquistii Reveal Bull Mountain buckwheat Eriogonum darrovii Kearney Darrow's buckwheat Eriogonum davidsonii Greene Davidson's buckwheat Eriogonum deflexum Torr. flatcrown buckwheat Eriogonum desertorum (Maguire) R.J. Davis Great Basin Desert buckwheat Eriogonum divaricatum Hook. divergent buckwheat Eriogonum ephedroides Reveal ephedra buckwheat Eriogonum eremicum Reveal limestone buckwheat Eriogonum fasciculatum Benth. Eastern Mojave buckwheat Eriogonum fasciculatum var. polifolium (Benth.) Torr. & Gray Eastern Mojave buckwheat Eriogonum gordonii Benth. Gordon's buckwheat Eriogonum heermannii Dur. & Hilg. Heermann's buckwheat Eriogonum heracleoides Nutt. parsnipflower buckwheat Eriogonum hookeri S. Wats. Hooker's buckwheat Eriogonum howellianum Reveal Howell's buckwheat Eriogonum hylophilum Reveal & Brotherson Gate Canyon buckwheat Eriogonum inflatum Torr. & Frem. Native American pipeweed Eriogonum insigne S. Wats. ladder buckwheat Eriogonum jamesii Benth. James' buckwheat Eriogonum leptocladon Torr. & Gray sand buckwheat Eriogonum lonchophyllum Torr. & Gray spearleaf buckwheat Eriogonum maculatum Heller spotted buckwheat Eriogonum microthecum Nutt. slender buckwheat Eriogonum natum Reveal Son's buckwheat Eriogonum nidularium Coville birdnest buckwheat Eriogonum nummulare M.E. Jones money buckwheat Eriogonum nutans Torr. & Gray Dugway buckwheat Eriogonum nutans var. nutans Torr. & Gray Dugway buckwheat Eriogonum ostlundii M.E. Jones Elsinore buckwheat Eriogonum ovalifolium Nutt. cushion buckwheat Eriogonum ovalifolium var. ovalifolium Nutt. cushion buckwheat Eriogonum palmerianum Reveal Palmer's buckwheat Eriogonum panguicense (M.E. Jones) Reveal Panguitch buckwheat Eriogonum pharnaceoides Torr. wirestem buckwheat Eriogonum plumatella Dur. & Hilg. yucca buckwheat Eriogonum polycladon Benth. sorrel buckwheat Eriogonum puberulum S. Wats. Red Creek buckwheat Eriogonum pusillum Torr. & Gray yellowturbans Eriogonum racemosum Nutt. redroot buckwheat Eriogonum scabrellum Reveal Westwater buckwheat Eriogonum shockleyi S. Wats. Shockley's buckwheat Eriogonum smithii Reveal flattop buckwheat Eriogonum soredium Reveal Frisco buckwheat Eriogonum spathulatum Gray spoonleaf buckwheat Eriogonum subreniforme S. Wats. kidneyshape buckwheat Eriogonum thomasii Torr. Thomas' buckwheat Eriogonum thompsoniae S. Wats. Thompson's buckwheat Eriogonum trichopes Torr. little deserttrumpet Eriogonum tumulosum (Barneby) Reveal Woodside buckwheat Eriogonum umbellatum Torr. sulphur wildbuckwheat Eriogonum villiflorum Gray gray buckwheat Eriogonum viridulum Reveal clay hill buckwheat Eriogonum wetherillii Eastw. Wetherill's buckwheat Eriogonum wrightii Torr. ex Benth. bastardsage Eriogonum zionis J.T. Howell Zion buckwheat Oxyria digyna (L.) Hill alpine mountainsorrel Oxytheca perfoliata Torr. & Gray roundleaf puncturebract Polygonum amphibium L. water knotweed Polygonum aubertii Henry Chinese fleecevine Polygonum aviculare L. prostrate knotweed Polygonum bistortoides Pursh American bistort Polygonum convolvulus L. black bindweed Polygonum cuspidatum Sieb. & Zucc. Japanese knotweed Polygonum douglasii Greene Douglas' knotweed Polygonum hydropiper L. marshpepper knotweed Polygonum lapathifolium L. curlytop knotweed Polygonum minimum S. Wats. broadleaf knotweed Polygonum persicaria L. spotted ladysthumb Polygonum polygaloides Wallich ex Meisn. polygala knotweed Polygonum polygaloides ssp. kelloggii (Greene) Hickman Kellogg's knotweed Polygonum ramosissimum Michx. bushy knotweed Polygonum viviparum L. alpine bistort Pterostegia drymarioides Fisch. & C.A. Mey. woodland pterostegia Rheum rhabarbarum L. garden rhubarb Rumex acetosella L. common sheep sorrel Rumex aquaticus L. western dock Rumex crispus L. curly dock Rumex dentatus L. toothed dock Rumex hymenosepalus Torr. canaigre dock Rumex maritimus L. golden dock Rumex obtusifolius L. bitter dock Rumex patientia L. patience dock Rumex paucifolius Nutt. fewleaved dock Rumex salicifolius Weinm. willow dock Rumex stenophyllus Ledeb. narrowleaf dock Rumex venosus Pursh veiny dock Stenogonum flexum (M.E. Jones) Reveal & J.T. Howell bent twowhorl buckwheat Stenogonum salsuginosum Nutt. salty eriogonum POLYPODIACEAE Polypodium hesperium Maxon western polypody PORTULACACEAE Cistanthe monandra (Nutt.) Hershkovitz common pussypaws Cistanthe parryi (Gray) Hershkovitz Parry's pussypaws Cistanthe umbellata (Torr.) Hershkovitz Mt. Hood pussypaws Claytonia cordifolia S. Wats. heartleaf springbeauty Claytonia lanceolata Pursh lanceleaf springbeauty Claytonia megarhiza (Gray) Parry ex S. Wats. alpine springbeauty Claytonia perfoliata Donn ex Willd. miner's lettuce Lewisia brachycalyx Engelm. ex Gray shortsepal bitterroot Lewisia pygmaea (Gray) B.L. Robins. pigmy bitterroot Lewisia rediviva Pursh Oregon bitterroot Lewisia triphylla (S. Wats.) B.L. Robins. threeleaf lewisia Montia chamissoi (Ledeb. ex Spreng.) Greene water minerslettuce Montia linearis (Dougl. ex Hook.) Greene narrowleaf minerslettuce Montia perfoliata (Donn ex Willd.) T.J. Howell = Claytonia perfoliata ssp. perfoliata Portulaca halimoides L. silkcotton purslane Portulaca oleracea L. little hogweed Talinum brevifolium Torr. pygmy fameflower Talinum parviflorum Nutt. sunbright Talinum thompsonii Atwood & Welsh Cedar Mountain fameflower POTAMOGETONACEAE Potamogeton alpinus Balbis alpine pondweed Potamogeton crispus L. curly pondweed Potamogeton epihydrus Raf. ribbonleaf pondweed Potamogeton filiformis Pers. fineleaf pondweed Potamogeton foliosus Raf. leafy pondweed Potamogeton friesii Rupr. Fries' 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 richardsonii (Benn.) Rydb. Richardson's pondweed Potamogeton robbinsii Oakes Robbins' pondweed Potamogeton strictifolius Benn. narrowleaf pondweed Potamogeton vaginatus Turcz. sheathed pondweed Potamogeton zosteriformis Fern. flatstem pondweed PRIMULACEAE Anagallis arvensis L. scarlet pimpernel Androsace chamaejasme Wulfen sweetflower rockjasmine Androsace filiformis Retz. filiform rockjasmine Androsace occidentalis Pursh western rockjasmine Androsace septentrionalis L. pygmyflower rockjasmine Dodecatheon alpinum (Gray) Greene alpine shootingstar Dodecatheon dentatum Hook. white shootingstar Dodecatheon pulchellum (Raf.) Merr. darkthroat shootingstar Dodecatheon redolens (Hall) H.J. Thompson scented shootingstar Glaux maritima L. sea milkwort Lysimachia ciliata L. fringed loosestrife Lysimachia thyrsiflora L. tufted loosestrife Primula domensis Kass & Welsh House Range primrose Primula incana M.E. Jones silvery primrose Primula maguirei L.O. Williams Maguire's primrose Primula parryi Gray Parry's primrose Primula specuicola Rydb. cavedwelling primrose Samolus valerandi L. seaside brookweed PTERIDACEAE \Adiantum aleuticum (Rupr.) Paris Aleutian maidenhair Adiantum capillus-veneris L. common maidenhair Adiantum pedatum L. northern maidenhair Argyrochosma jonesii (Maxon) Windham Jones' falsecloak fern Argyrochosma limitanea (Maxon) Windham southwestern falsecloak fern Aspidotis densa (Brack.) Lellinger Indian's dream Cheilanthes covillei Maxon Coville's lipfern Cheilanthes eatonii Baker Eaton's lipfern Cheilanthes feei T. Moore slender lipfern Cheilanthes gracillima D.C. Eat. lace lipfern Cheilanthes parryi (D.C. Eat.) Domin Parry's lipfern Cryptogramma acrostichoides R. Br. American rockbrake Cryptogramma crispa (L.) R. Br. ex Hook. crisp rockbrake Cryptogramma stelleri (Gmel.) Prantl fragile rockbrake Pellaea breweri D.C. Eat. Brewer's cliffbrake Pellaea glabella Mett. ex Kuhn dwarf cliffbrake Pellaea ternifolia (Cav.) Link TransPecos cliffbrake Pellaea truncata Goodding spiny cliffbrake Pellaea wrightiana Hook. Wright's cliffbrake Pentagrama triangularis (Kaulfuss) Yatskievych, Windham & Wollenweber western goldfern PUNICACEAE Punica granatum L. pomegranate RANUNCULACEAE Aconitum columbianum Nutt. Columbian monkshood Actaea rubra (Ait.) Willd. red baneberry Adonis aestivalis L. summer pheasant's eye Anemone ludoviciana Nutt. = Pulsatilla patens ssp. multifida Anemone multifida (Pritz.) Zamels, non Poir. = Pulsatilla patens ssp. multifida Anemone multifida Poir. Pacific anemone Anemone parviflora Michx. smallflowered anemone Anemone patens L. = Pulsatilla patens ssp. patens Anemone quinquefolia L. nightcaps Anemone tuberosa Rydb. tuber anemone Aquilegia barnebyi Munz oil shale columbine Aquilegia chrysantha Gray golden columbine Aquilegia coerulea James Colorado blue columbine Aquilegia elegantula Greene western red columbine Aquilegia flavescens S. Wats. yellow columbine Aquilegia formosa Fisch. ex DC. western columbine Aquilegia micrantha Eastw. Mancos columbine Aquilegia scopulorum Tidestrom Utah columbine Caltha leptosepala DC. white marshmarigold Ceratocephala testiculata (Crantz) Bess. curveseed butterwort Clematis columbiana (Nutt.) Torr. & Gray rock clematis Clematis hirsutissima Pursh hairy clematis Clematis ligusticifolia Nutt. western white clematis Clematis occidentalis (Hornem.) DC. western blue virginsbower Clematis orientalis L. oriental virginsbower Consolida ajacis (L.) Schur doubtful knight's spur Delphinium X occidentale (S. Wats.) S. Wats. duncecap larkspur Delphinium andersonii Gray Anderson's larkspur Delphinium barbeyi (Huth) Huth tall larkspur Delphinium geyeri Greene Geyer's larkspur Delphinium nuttallianum Pritz. ex Walp. Nuttal's larkspur Delphinium scaposum Greene tall mountain larkspur Myosurus cupulatus S. Wats. Arizona mousetail Pulsatilla hirsutissima (Pursh) Britt. = Pulsatilla patens ssp. multifida Pulsatilla ludoviciana Heller = Pulsatilla patens ssp. multifida Pulsatilla patens (L.) P. Mill. American pasqueflower Pulsatilla patens ssp. multifida (Pritz.) Zamels cutleaf anemone Pulsatilla patens ssp. patens (L.) P. Mill. American pasqueflower Ranunculus acriformis Gray sharpleaf buttercup Ranunculus acris L. tall buttercup Ranunculus acris var. acris L. showy buttercup Ranunculus adoneus Gray alpine buttercup Ranunculus aestivalis (L. Benson) Van Buren & Harper Ranunculus 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 cardiophyllus Hook. heartleaf buttercup Ranunculus cymbalaria Pursh alkali buttercup Ranunculus eschscholtzii Schlecht. Eschscholtz's buttercup Ranunculus flabellaris Raf. yellow water buttercup Ranunculus flammula L. spearwort buttercup Ranunculus glaberrimus Hook. sagebrush buttercup Ranunculus gmelinii DC. Gmelin's buttercup Ranunculus hyperboreus Rottb. high northern buttercup Ranunculus inamoenus Greene graceful buttercup Ranunculus jovis A. Nels. Utah buttercup Ranunculus karelinii Czern. ice cold buttercup Ranunculus longirostris Godr. longbeak buttercup Ranunculus macounii Britt. Macoun's buttercup Ranunculus natans C.A. Mey. nodding buttercup Ranunculus oreogenes Greene Oregon buttercup Ranunculus orthorhynchus Hook. straightbeak buttercup Ranunculus pedatifidus Sm. surefoot buttercup Ranunculus ranunculinus (Nutt.) Rydb. tadpole buttercup Ranunculus repens L. creeping buttercup Ranunculus sceleratus L. celeryleaf buttercup Ranunculus trichophyllus Chaix whitewater crowfoot Thalictrum alpinum L. alpine meadowrue Thalictrum fendleri Engelm. ex Gray Fendler's meadowrue Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. fewflower meadowrue Trautvetteria caroliniensis (Walt.) Vail Carolina bugbane Trollius laxus Salisb. American globeflower RHAMNACEAE Ceanothus fendleri Gray Fendler's ceanothus Ceanothus greggii Gray desert ceanothus Ceanothus martinii M.E. Jones Martin's ceanothus Ceanothus velutinus Dougl. ex Hook. snowbrush ceanothus Frangula betulifolia (Greene) V. Grub. beechleaf frangula Rhamnus alnifolia L'Her. alderleaf buckthorn Rhamnus betulifolia Greene = Frangula betulifolia ssp. betulifolia Rhamnus cathartica L. common buckthorn Ziziphus mauritiana Lam. Indian jujube Ziziphus zizyphus (L.) Karst. common jujube ROSACEAE Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer Saskatoon serviceberry Amelanchier utahensis Koehne Utah serviceberry Argentina anserina (L.) Rydb. silverweed cinquefoil Cercocarpus Kunth mountain mahogany Cercocarpus intricatus S. Wats. littleleaf mountain mahogany Cercocarpus ledifolius Nutt. curlleaf mountain mahogany Cercocarpus montanus Raf. true mountain mahogany Chamaebatiaria millefolium (Torr.) Maxim. fernbush Chamaerhodos erecta (L.) Bunge little rose Choenomeles japonica (Thunb.) Lindl. ex Spach lesser flowering quince Choenomeles speciosa (Sweet) Nakai Japanese flowering quince Coleogyne ramosissima Torr. blackbrush Comarum palustre L. purple marshlocks Cowania mexicana D. Don = Purshia mexicana Crataegus chrysocarpa Ashe fireberry hawthorn Crataegus douglasii Lindl. black hawthorn Crataegus flabellata (Spach) Kirchn. fanleaf hawthorn Crataegus monogyna Jacq. oneseed hawthorn Crataegus rivularis Nutt. river hawthorn Crataegus succulenta Schrad. ex Link fleshy hawthorn Cydonia oblonga P. Mill. quince Dryas octopetala L. white dryad Exochorda racemosa (Lindl.) Rehd. common pearlbrush Fallugia paradoxa (D. Don) Endl. ex Torr. Apacheplume Fragaria vesca L. woodland strawberry Fragaria virginiana Duchesne Virginia strawberry Geum aleppicum Jacq. yellow avens Geum macrophyllum Willd. largeleaf avens Geum rossii (R. Br.) Ser. Ross' avens Geum triflorum Pursh prairiesmoke Geum urbanum L. herb bennet Holodiscus dumosus (Nutt. ex Hook.) Heller rockspirea Ivesia arizonica (Eastw. ex J.T. Howell) Ertter rock whitefeather Ivesia baileyi S. Wats. Bailey's ivesia Ivesia gordonii (Hook.) Torr. & Gray Gordon's ivesia Ivesia kingii S. Wats. King's mousetail Ivesia sabulosa (M.E. Jones) Keck Intermountain mousetail Ivesia shockleyi S. Wats. sky mousetail Ivesia utahensis S. Wats. Utah mousetail Kerria japonica (L.) DC. Japanese rose Malus pumila P. Mill. cultivated apple Pentaphylloides floribunda (Pursh) A. Love shrubby cinquefoil Peraphyllum ramosissimum Nutt. squaw apple Petrophyton caespitosum (Nutt.) Rydb. mat rockspirea Physocarpus alternans (M.E. Jones) J.T. Howell dwarf ninebark Physocarpus malvaceus (Greene) Kuntze mallow ninebark Physocarpus monogynus (Torr.) Coult. mountain ninebark Potentilla anserina L. = Argentina anserina Potentilla arguta Pursh tall cinquefoil Potentilla biennis Greene biennial cinquefoil Potentilla concinna Richards. elegant cinquefoil Potentilla cottamii N. Holmgren Pilot Range cinquefoil Potentilla crinita Gray bearded cinquefoil Potentilla diversifolia Lehm. varileaf cinquefoil Potentilla glandulosa Lindl. gland cinquefoil Potentilla gracilis Dougl. ex Hook. northwest cinquefoil Potentilla hippiana Lehm. woolly cinquefoil Potentilla nivea L. snow cinquefoil Potentilla norvegica L. Norwegian cinquefoil Potentilla ovina Macoun sheep cinquefoil Potentilla paradoxa Nutt. Paradox cinquefoil Potentilla pectinisecta Rydb. combleaf cinquefoil Potentilla pensylvanica L. Pennsylvania cinquefoil Potentilla plattensis Nutt. Platte River cinquefoil Potentilla rivalis Nutt. brook cinquefoil Potentilla rubricaulis Lehm. Rocky Mountain cinquefoil Prunus americana Marsh. American plum Prunus armeniaca L. apricot Prunus dulcis (P. Mill.) D.A. Webber sweet almond Prunus emarginata (Dougl. ex Hook.) Walp. bitter cherry Prunus fasciculata (Torr.) Gray desert almond Prunus laurocerasus L. cherry laurel Prunus mahaleb L. Mahaleb cherry Prunus melanocarpa (A. Nels.) Rydb. = Prunus virginiana var. melanocarpa Prunus padus L. European bird cherry Prunus persica (L.) Batsch peach Prunus tomentosa Thunb. Nanking cherry Prunus triloba Lindl. flowering plum Prunus virginiana L. common chokecherry Prunus virginiana var. melanocarpa (A. Nels.) Sarg. black chokecherry Purshia glandulosa Curran desert bitterbrush Purshia mexicana (D. Don) Henrickson Mexican cliffrose Purshia tridentata (Pursh) DC. antelope bitterbrush Pyracantha coccinea M. Roemer scarlet firethorn Pyrus communis L. common pear Rosa canina L. dog rose Rosa eglanteria L. sweetbriar rose Rosa nutkana K. Presl Nootka rose Rubus discolor Weihe & Nees Himalayan blackberry Rubus idaeus L. American red raspberry Rubus leucodermis Dougl. ex Torr. & Gray whitebark raspberry Rubus neomexicanus Gray New Mexico raspberry Rubus parviflorus Nutt. thimbleberry Sanguisorba minor Scop. small burnet Sibbaldia procumbens L. creeping sibbaldia Sorbaria sorbifolia (L.) A. Braun false spiraea Sorbus aucuparia L. European mountainash Sorbus hybrida L. oakleaf mountainash Sorbus scopulina Greene Greene mountainash Spiraea X vanhouttei (Briot) Carr. Van Houtt's spirea RUBIACEAE Galium aparine L. stickywilly Galium bifolium S. Wats. twinleaf bedstraw Galium boreale L. northern bedstraw Galium circaezans Michx. licorice bedstraw Galium coloradoense W. Wight Colorado bedstraw Galium mexicanum Kunth Mexican bedstraw Galium multiflorum Kellogg shrubby bedstraw Galium proliferum Gray limestone bedstraw Galium stellatum Kellogg starry bedstraw Galium trifidum L. threepetal bedstraw Galium triflorum Michx. fragrant bedstraw Houstonia rubra Cav. red bluet Kelloggia galioides Torr. milk kelloggia Rubia tinctoria L. madder RUPPIACEAE Ruppia maritima L. widgeongrass RUTACEAE Ptelea trifoliata L. common hoptree Ptelea trifoliata ssp. pallida (Greene) V. Bailey common hoptree Ptelea trifoliata ssp. trifoliata L. common hoptree Thamnosma montana Torr. & Frem. turpentinebroom SALICACEAE Populus X canadensis Moench (pro sp.) Canada poplar Populus alba L. white poplar Populus angustifolia James narrowleaf cottonwood Populus balsamifera L. balsam poplar Populus fremontii S. Wats. Fremont's cottonwood Populus nigra L. Lombardy poplar Populus tremuloides Michx. quaking aspen Salix amygdaloides Anderss. peachleaf willow Salix arctica R. Br. ex Richards. Salix arctophila Cockerell ex Heller ovalleaf willow Salix bebbiana Sarg. Bebb willow Salix bonplandiana Kunth red willow Salix boothii Dorn Booth's willow Salix brachycarpa Nutt. barrenground willow Salix cascadensis Cockerell cascade willow Salix drummondiana Barratt ex Hook. Drummond's willow Salix exigua Nutt. sandbar willow Salix fragilis L. crack willow Salix geyeriana Anderss. Geyer's willow Salix glauca L. grayleaf willow Salix gooddingii Ball Goodding's willow Salix lasiolepis Benth. arroyo willow Salix lucida Muhl. shining willow Salix lutea Nutt. yellow willow Salix monticola Bebb park willow Salix nigra Marsh. black willow Salix planifolia Pursh diamondleaf willow Salix reticulata L. netleaf willow Salix scouleriana Barratt ex Hook. Scouler's willow Salix wolfii Bebb Wolf's willow SANTALACEAE Comandra umbellata (L.) Nutt. bastard toadflax SAPINDACEAE Koelreuteria paniculata Laxm. goldenrain tree SAURURACEAE Anemopsis californica (Nutt.) Hook. & Arn. yerba mansa SAXIFRAGACEAE Boykinia heucheriformis (Rydb.) Rosendahl alumroot brookfoam Boykinia jamesii (Torr.) Engl. James' telesonix Darmera peltata (Torr. ex Benth.) Voss Indian rhubarb Heuchera parvifolia Nutt. ex Torr. & Gray littleleaf alumroot Heuchera parvifolia var. utahensis (Rydb.) Garrett Utah alumroot Heuchera rubescens Torr. pink alumroot Lithophragma glabrum Nutt. bulbous woodlandstar Lithophragma parviflorum (Hook.) Nutt. ex Torr. & Gray smallflower woodlandstar Lithophragma tenellum Nutt. slender woodlandstar Mitella pentandra Hook. fivestamen miterwort Mitella stauropetala Piper smallflower miterwort Parnassia fimbriata Koenig Rocky Mountain parnassia Saxifraga adscendens L. wedgeleaf saxifrage Saxifraga bronchialis L. yellowdot saxifrage Saxifraga cernua L. nodding saxifrage Saxifraga cespitosa L. tufted alpine saxifrage Saxifraga chrysantha Gray goldbloom saxifrage Saxifraga flagellaris Willd. ex Sternb. whiplash saxifrage Saxifraga hirculus L. yellow marsh saxifrage Saxifraga odontoloma Piper brook saxifrage Saxifraga rhomboidea Greene diamondleaf saxifrage SCROPHULARIACEAE Besseya alpina (Gray) Rydb. alpine besseya Besseya wyomingensis (A. Nels.) Rydb. Wyoming besseya Castilleja angustifolia (Nutt.) G. Don northwestern Indian paintbrush Castilleja applegatei Fern. wavyleaf Indian paintbrush Castilleja aquariensis N. Holmgren Aquarius Plateau Indian paintbrush Castilleja flava S. Wats. yellow Indian paintbrush Castilleja linariifolia Benth. Wyoming Indian paintbrush Castilleja miniata Dougl. ex Hook. scarlet Indian paintbrush Castilleja minor (Gray) Gray lesser Indian paintbrush Castilleja nana Eastw. dwarf alpine Indian paintbrush Castilleja occidentalis Torr. western Indian paintbrush Castilleja parvula Rydb. Tushar Plateau Indian paintbrush Castilleja pulchella Rydb. beautiful Indian paintbrush Castilleja revealii N. Holmgren Bryce Canyon Indian paintbrush Castilleja rhexiifolia Rydb. splitleaf Indian paintbrush Castilleja scabrida Eastw. rough Indian paintbrush Castilleja sulphurea Rydb. sulphur Indian paintbrush Collinsia parviflora Lindl. smallflower blue eyed Mary Cordylanthus kingii S. Wats. King's bird's beak Cordylanthus maritimus Nutt. ex Benth. saltmarsh bird's beak Cordylanthus parviflorus (Ferris) Wiggins purple bird's beak Cordylanthus ramosus Nutt. ex Benth. bushy bird's beak Cordylanthus wrightii Gray Wright's bird's beak Gratiola neglecta Torr. clammy hedgehyssop Limosella aquatica L. water mudwort Linaria canadensis (L.) Chaz. = Nuttallanthus canadensis Linaria dalmatica (L.) P. Mill. Dalmatian toadflax Linaria vulgaris P. Mill. butter and eggs Maurandella antirrhiniflora (Humb. & Bonpl. ex Willd.) Rothm. roving sailor Mimetanthe pilosa (Benth.) Greene false monkeyflower Mimulus bigelovii (Gray) Gray Bigelow's monkeyflower Mimulus breweri (Greene) Coville Brewer's monkeyflower Mimulus cardinalis Dougl. ex Benth. crimson monkeyflower Mimulus eastwoodiae Rydb. Eastwood's monkeyflower Mimulus floribundus Lindl. manyflowered monkeyflower Mimulus glabratus Kunth roundleaf monkeyflower Mimulus guttatus DC. seep monkeyflower Mimulus lewisii Pursh purple monkeyflower Mimulus moschatus Dougl. ex Lindl. musk monkeyflower Mimulus parryi Gray annual redspot monkeyflower Mimulus primuloides Benth. primrose monkeyflower Mimulus rubellus Gray red monkeyflower Mimulus spissus A.L. Grant compact monkeyflower Mimulus suksdorfii Gray Suksdorf's monkeyflower Mimulus tilingii Regel Tiling's monkeyflower Mohavea breviflora Coville golden desertsnapdragon Neogaerrhinum filipes (Gray) Rothm. Filipes snapdragon Nuttallanthus canadensis (L.) D.A. Sutton Canada toadflax Orthocarpus luteus Nutt. yellow owlclover Orthocarpus purpureoalbus Gray ex S. Wats. purplewhite owlclover Pedicularis bracteosa Benth. bracted lousewort Pedicularis centranthera Gray dwarf lousewort Pedicularis contorta Benth. coiled lousewort Pedicularis contorta var. contorta Benth. coiled lousewort Pedicularis groenlandica Retz. elephanthead lousewort Pedicularis parryi Gray Parry's lousewort Pedicularis parryi ssp. parryi Gray Parry's lousewort Pedicularis parryi ssp. purpurea (Parry) G.D. Carr Rocky Mountain lousewort Pedicularis procera Gray giant lousewort Pedicularis racemosa Dougl. ex Benth. sickletop lousewort Penstemon X jonesii Pennell (pro sp.) Jones' penstemon Penstemon abietinus Pennell firleaf beardtongue Penstemon acaulis L.O. Williams stemless beardtongue Penstemon ambiguus Torr. gilia beardtongue Penstemon ammophilus N. Holmgren & L. Shultz sandloving penstemon Penstemon angustifolius Nutt. ex Pursh broadbeard beardtongue Penstemon atwoodii Welsh Kaiparowits beardtongue Penstemon barbatus (Cav.) Roth beardlip penstemon Penstemon bracteatus Keck Red Canyon beardtongue Penstemon breviculus (Keck) Nisbet & R.C. Jackson shortstem beardtongue Penstemon caespitosus Nutt. ex Gray mat penstemon Penstemon carnosus Pennell fleshy beardtongue Penstemon comarrhenus Gray dusty beardtongue Penstemon compactus (Keck) Crosswhite compact penstemon Penstemon concinnus Keck Tunnel Springs beardtongue Penstemon confusus M.E. Jones Owens Valley beardtongue Penstemon crandallii A. Nels. Crandall's beardtongue Penstemon cyananthus Hook. Wasatch beardtongue Penstemon cyanocaulis Payson bluestem beardtongue Penstemon deustus Dougl. ex Lindl. scabland penstemon Penstemon dolius M.E. Jones ex Pennell Jones' beardtongue Penstemon dolius var. duchesnensis N. Holmgren Duchesne penstemon Penstemon eatonii Gray Eaton's penstemon Penstemon eriantherus Pursh fuzzytongue penstemon Penstemon flowersii Neese & Welsh Flowers' beardtongue Penstemon fremontii Torr. & Gray ex Gray Fremont's beardtongue Penstemon goodrichii N. Holmgren Lapoint beardtongue Penstemon grahamii Keck Uinta Basin beardtongue Penstemon humilis Nutt. ex Gray low penstemon Penstemon immanifestus N. Holmgren Steptoe Valley beardtongue Penstemon laevis Pennell southwestern beardtongue Penstemon leiophyllus Pennell smoothleaf beardtongue Penstemon lentus Pennell handsome beardtongue Penstemon leonardii Rydb. Leonard's beardtongue Penstemon linarioides Gray toadflax penstemon Penstemon longiflorus (Pennell) S.L. Clark longflower penstemon Penstemon marcusii (Keck) N. Holmgren Marcus' beardtongue Penstemon moffatii Eastw. Moffatt's beardtongue Penstemon montanus Greene mountain penstemon Penstemon nanus Keck dwarf beardtongue Penstemon navajoa N. Holmgren Navajo Mountain beardtongue Penstemon ophianthus Pennell coiled anther penstemon Penstemon pachyphyllus Gray ex Rydb. thickleaf beardtongue Penstemon palmeri Gray Palmer's penstemon Penstemon parvus Pennell Aquarius Plateau beardtongue Penstemon petiolatus Brandeg. petiolate beardtongue Penstemon pinorum L.& J. Shultz Pine Valley penstemon Penstemon platyphyllus Rydb. broadleaf beardtongue Penstemon procerus Dougl. ex Graham littleflower penstemon Penstemon pseudoputus (Crosswhite) N. Holmgren Kaibab Plateau beardtongue Penstemon radicosus A. Nels. matroot penstemon Penstemon rostriflorus Kellogg Bridge penstemon Penstemon rydbergii A. Nels. Rydberg's penstemon Penstemon scariosus Pennell White River beardtongue Penstemon sepalulus A. Nels. littlecup beardtongue Penstemon speciosus Dougl. ex Lindl. royal penstemon Penstemon strictiformis Rydb. Mancos penstemon Penstemon strictus Benth. Rocky Mountain penstemon Penstemon subglaber Rydb. smooth penstemon Penstemon thompsoniae (Gray) Rydb. Thompson's beardtongue Penstemon tidestromii Pennell Tidestrom's beardtongue Penstemon tusharensis N. Holmgren Tushar Range beardtongue Penstemon uintahensis Pennell Uinta Mountain beardtongue Penstemon utahensis Eastw. Utah penstemon Penstemon venustus Dougl. ex Lindl. Venus penstemon Penstemon wardii Gray Ward's beardtongue Penstemon watsonii Gray Watson's penstemon Penstemon whippleanus Gray Whipple's penstemon Penstemon yampaensis Penl. Yampa beardtongue Sairocarpus kingii (S. Wats.) D.A. Sutton King's snapdragon Scrophularia lanceolata Pursh lanceleaf figwort Synthyris laciniata (Gray) Rydb. western kittenstails Synthyris pinnatifida S. Wats. featherleaf kittenstails Verbascum blattaria L. moth 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 biloba L. twolobe speedwell Veronica hederifolia L. ivyleaf speedwell Veronica peregrina L. neckweed Veronica persica Poir. birdeye speedwell Veronica serpyllifolia L. thymeleaf speedwell Veronica wormskjoldii Roemer & J.A. Schultes American alpine speedwell SELAGINELLACEAE Selaginella densa Rydb. lesser spikemoss Selaginella mutica D.C. Eat. ex Underwood bluntleaf spikemoss Selaginella underwoodii Hieron. Underwood's spikemoss Selaginella utahensis Flowers Utah spikemoss Selaginella watsonii Underwood Watson's spikemoss SIMAROUBACEAE Ailanthus altissima (P. Mill.) Swingle tree of heaven SOLANACEAE Calibrachoa Llave & Lex. calibrachoa Calibrachoa parviflora (Juss.) D'Arcy seaside petunia Chamaesaracha coronopus (Dunal) Gray greenleaf five eyes datura Datura meteloides DC. ex Dunal = Datura wrightii Datura stramonium L. jimsonweed Datura tatula L. = Datura stramonium Datura wrightii Regel sacred thornapple Hyoscyamus niger L. black henbane Lycium andersonii Gray Anderson's wolfberry Lycium barbarum L. matrimonyvine Lycium cooperi Gray Cooper's wolfberry Lycium pallidum Miers pale wolfberry Lycium torreyi Gray squawthorn Nicotiana attenuata Torr. ex S. Wats. coyote tobacco Nicotiana obtusifolia Mertens & Galeotti Physalis crassifolia Benth. yellow nightshade groundcherry Physalis hederifolia Gray ivyleaf groundcherry Physalis heterophylla Nees clammy groundcherry Physalis longifolia Nutt. longleaf groundcherry Physalis pubescens L. husk tomato Quincula lobata (Torr.) Raf. Chinese lantern Solanum carolinense L. Carolina horsenettle Solanum dulcamara L. climbing nightshade Solanum elaeagnifolium Cav. silverleaf nightshade Solanum jamesii Torr. wild potato Solanum nigrum L. black nightshade Solanum physalifolium Rusby hoe nightshade Solanum ptychanthum Dunal nightshade Solanum rostratum Dunal buffalobur nightshade Solanum triflorum Nutt. cutleaf nightshade TAMARICACEAE Tamarix aphylla (L.) Karst. Athel tamarisk Tamarix parviflora DC. smallflower tamarisk Tamarix ramosissima Ledeb. saltcedar TILIACEAE Tilia americana L. American basswood Tilia cordata P. Mill. littleleaf linden Tilia petiolaris DC. pendent silver linden Tilia platyphyllos Scop. largeleaf linden TROPAEOLACEAE Tropaeolum majus L. garden nasturtium TYPHACEAE Typha X glauca Godr. (pro sp.) white cattail Typha domingensis Pers. southern cattail Typha latifolia L. broadleaf cattail ULMACEAE Celtis laevigata Willd. sugarberry Celtis occidentalis L. common hackberry Ulmus americana L. American elm Ulmus minor P. Mill. smoothleaf elm Ulmus parvifolia Jacq. Chinese elm Ulmus pumila L. Siberian elm Zelkova Spach zelkova Zelkova serrata (Thunb.) Makino Japanese zelkova UMBELLIFERAE Aletes Coult. & Rose Indian parsley Aletes macdougalii Coult. & Rose MacDougal's aletes Angelica kingii (S. Wats.) Coult. & Rose King's angelica Angelica pinnata S. Wats. smallleaf angelica Angelica roseana Henderson rose angelica Angelica wheeleri S. Wats. Utah angelica Apium graveolens L. wild celery Berula erecta (Huds.) Coville cutleaf waterparsnip Carum carvi L. caraway Cicuta maculata L. spotted water hemlock Conioselinum Hoffmann hemlockparsley Conioselinum scopulorum (Gray) Coult. & Rose Rocky Mountain hemlockparsley Conium maculatum L. poison hemlock Cymopterus acaulis (Pursh) Raf. plains springparsley Cymopterus acaulis var. fendleri (Gray) Goodrich Fendler's springparsley Cymopterus acaulis var. higginsii (Welsh) Goodrich Higgins' springparsley Cymopterus basalticus M.E. Jones basalt springparsley Cymopterus beckii Welsh & Goodrich featherleaf springparsley Cymopterus bulbosus A. Nels. bulbous springparsley Cymopterus coulteri (M.E. Jones) Mathias twoleaf springparsley Cymopterus duchesnensis M.E. Jones Uinta Basin springparsley Cymopterus evertii Hartman & Kirkpatrick Evert's springparsley Cymopterus fendleri Gray = Cymopterus acaulis var. fendleri Cymopterus globosus (S. Wats.) S. Wats. globe springparsley Cymopterus ibapensis M.E. Jones Ibapah springparsley Cymopterus jonesii Coult. & Rose Jones' springparsley Cymopterus longipes S. Wats. longstalk springparsley Cymopterus minimus (Mathias) Mathias Cedar Breaks springparsley Cymopterus multinervatus (Coult. & Rose) Tidestrom purplenerve springparsley Cymopterus newberryi (S. Wats.) M.E. Jones sweetroot springparsley Cymopterus purpurascens (Gray) M.E. Jones widewing springparsley Cymopterus purpureus S. Wats. purple springparsley Cymopterus rosei (M.E. Jones) M.E. Jones Rose's springparsley Daucus carota L. Queen Anne's lace Foeniculum vulgare P. Mill. sweet fennel Heracleum maximum Bartr. common cowparsnip Hydrocotyle verticillata Thunb. whorled marshpennywort Ligusticum filicinum S. Wats. fernleaf licoriceroot Ligusticum grayi Coult. & Rose Gray's licoriceroot Ligusticum porteri Coult. & Rose Porter's licoriceroot Ligusticum porteri var. brevilobum (Rydb.) Mathias & Constance Porter's licoriceroot Ligusticum tenuifolium S. Wats. Idaho licoriceroot Lomatium ambiguum (Nutt.) Coult. & Rose Wyeth biscuitroot Lomatium bicolor (S. Wats.) Coult. & Rose Wasatch desertparsley Lomatium cous (S. Wats.) Coult. & Rose cous biscuitroot Lomatium dissectum (Nutt.) Mathias & Constance fernleaf buscuitroot Lomatium foeniculaceum (Nutt.) Coult. & Rose desert biscuitroot Lomatium graveolens (S. Wats.) Dorn & Hartman king desertparsley Lomatium grayi (Coult. & Rose) Coult. & Rose Gray's biscuitroot Lomatium junceum Barneby & N. Holmgren rush biscuitroot Lomatium juniperinum (M.E. Jones) Coult. & Rose juniper biscuitroot Lomatium latilobum (Rydb.) Mathias Canyonlands biscuitroot Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose bigseed biscuitroot Lomatium minimum (Mathias) Mathias little desertparsley Lomatium nevadense (S. Wats.) Coult. & Rose Nevada biscuitroot Lomatium nudicaule (Pursh) Coult. & Rose barestem biscuitroot Lomatium parryi (S. Wats.) J.F. Macbr. Utah desertparsley Lomatium ravenii Mathias & Constance Lassen parsley Lomatium scabrum (Coult. & Rose) Mathias rough desertparsley Lomatium simplex (Nutt.) J.F. Macbr. narrowleaf lomatium Lomatium triternatum (Pursh) Coult. & Rose nineleaf biscuitroot Musineon lineare (Rydb.) Mathias narrowleaf wildparsley Oreoxis alpina (Gray) Coult. & Rose alpine oreoxis Oreoxis bakeri Coult. & Rose Baker's alpineparsley Oreoxis trotteri Welsh & Goodrich Trotter's alpineparsley Orogenia linearifolia S. Wats. Great Basin Indian potato Osmorhiza berteroi DC. sweetcicely Osmorhiza chilensis Hook. & Arn. = Osmorhiza berteroi Osmorhiza depauperata Phil. bluntseed sweetroot Osmorhiza obtusa (Coult. & Rose) Fern. = Osmorhiza depauperata Osmorhiza occidentalis (Nutt. ex Torr. & Gray) Torr. western sweetroot Oxypolis fendleri (Gray) Heller Fendler's cowbane Pastinaca sativa L. wild parsnip Perideridia bolanderi (Gray) A. Nels. & J.F. Macbr. Bolander's yampah Perideridia gairdneri (Hook. & Arn.) Mathias yampa Podistera eastwoodiae (Coult. & Rose) Mathias & Constance Eastwood's podistera Pseudocymopterus montanus (Gray) Coult. & Rose alpine false springparsley Pteryxia hendersonii (Coult. & Rose) Mathias & Constance Henderson's desertparsley Pteryxia petraea (M.E. Jones) Coult. & Rose rockloving desertparsley Pteryxia terebinthina (Hook.) Coult. & Rose smoothshore springparsley Pteryxia terebinthina var. terebinthina (Hook.) Coult. & Rose turpentine wavewing Sium suave Walt. hemlock waterparsnip Torilis arvensis (Huds.) Link spreading hedgeparsley Yabea microcarpa (Hook. & Arn.) K.-Pol. falsecarrot Zizia aptera (Gray) Fern. meadow zizia URTICACEAE Parietaria pensylvanica Muhl. ex Willd. Pennsylvania pellitory Urtica dioica L. stinging nettle Urtica dioica ssp. gracilis (Ait.) Seland. California nettle Urtica dioica ssp. holosericea (Nutt.) Thorne stinging nettle VALERIANACEAE Centranthus ruber (L.) DC. Jupiter's beard Plectritis macrocera Torr. & Gray longhorn plectritis Valeriana acutiloba Rydb. sharpleaf valerian Valeriana arizonica Gray Arizona valerian Valeriana edulis Nutt. ex Torr. & Gray edible valerian Valeriana occidentalis Heller western valerian Valerianella locusta (L.) Lat. Lewiston cornsalad VERBENACEAE Aloysia wrightii Heller ex Abrams Wright's beebrush Glandularia bipinnatifida (Nutt.) Nutt. Dakota mock vervain Glandularia gooddingii (Briq.) Solbrig southwestern mock vervain Lippia wrightii Gray ex Torr. = Aloysia wrightii Phyla cuneifolia (Torr.) Greene fogfruit Verbena bipinnatifida Nutt. = Glandularia bipinnatifida var. bipinnatifida Verbena bracteata Lag. & Rodr. bigbract verbena Verbena gooddingii Briq. = Glandularia gooddingii Verbena hastata L. swamp verbena Verbena macdougalii Heller MacDougal verbena VIOLACEAE Viola adunca Sm. hookedspur violet Viola arvensis Murr. field pansy Viola beckwithii Torr. & Gray Beckwith's violet Viola canadensis L. Canadian white violet Viola charlestonensis M.S. Baker & J.C. Clausen ex Clokey Charleston Mountain violet Viola nuttallii Pursh Nuttall's violet Viola odorata L. sweet violet Viola palustris L. marsh violet Viola purpurea Kellogg goosefoot violet Viola sororia Willd. common blue violet Viola tricolor L. johnny jumpup VISCACEAE Arceuthobium abietinum Engelm. ex Munz fir dwarf mistletoe Arceuthobium americanum Nutt. ex Engelm. American 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 vaginatum (Willd.) J. Presl pineland dwarf mistletoe Phoradendron californicum Nutt. mesquite mistletoe Phoradendron juniperinum Engelm. juniper mistletoe VITACEAE Parthenocissus quinquefolia (L.) Planch. Virginia creeper Parthenocissus vitacea (Knerr) A.S. Hitchc. woodbine Vitis arizonica Engelm. canyon grape Vitis labrusca L. fox grape ZANNICHELLIACEAE Zannichellia palustris L. horned pondweed ZYGOPHYLLACEAE Fagonia laevis Standl. California fagonbush Kallstroemia californica (S. Wats.) Vail California caltrop Larrea tridentata (Sesse & Moc. ex DC.) Coville creosotebush Tribulus terrestris L. puncturevine