Heracleum maximum W.Bartram
Family: Apiaceae
American cow-parsnip
Heracleum maximum image
Emmet J. Judziewicz  
Etymology: Heracleum: named for Hercules, who was supposed to have used it first for medicine
Plants: erect, perennial, 3'-10' tall, stout, often fuzzy, foul smelling forb; single, hollow stems
Leaves: softly hairy; once 3-parted with broad, stalked, toothed or palmate leaflets; usually with an enlarged base with the stalk clasping the stem
Flowers: white, 5-parted, petals notched; inflorescence a 4"-8" compound, flat umbel with 15-30 stalked umbellets, the outer flowers sometimes larger and irregular; blooms June-July
Fruits: dry, splitting into 2 seeds, - fruit:fruit drawing seed:seed drawing
Habitat: sun to partial shade; moist; disturbed sites, streambanks; in rich soil
Conservation Status: Native