POPULUS NIGRA L. (Salicaceae) "Black Poplar" ALPHA-TOCOPHEROL Inflorescence CAFFEIC-ACID-3-BETA-G-GLUCOPYRANOSIDE Leaf CHRYSIN Plant D-ISOLARICIRESINOL-MONO-BETA-D-GLUCOPYRANOSIDE Plant EO Bulb 5,000 ppm GALLIC-ACID Plant GAMMA-TOCOPHEROL Inflorescence GENTISIC-ALCOHOL-2-BETA-D-(6-BENZOYL)-GLUCOPYRANOSIDE Plant KAEMPFEROL-DIMETHYLETHER Flower MALIC-ACID Plant MANNITOL Plant NIGRACIN Plant POPULIN Plant QUERCETIN-DIMETHYL-ETHER Inflorescence RESIN Plant SALICIN Plant SALICORTIN Plant SCHICORTIN Plant TANNIN Plant TECTOCHRYSIN Plant ZETA-TOCOPHEROL Inflorescence --------------------------------------------------- ppm = parts per million