© Jamie Fenneman (Photo ID #30120)
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Illustration Source: The Illustrated Flora of British Columbia
General: Stout, aromatic biennial herb from a stout taproot; stems erect, .3-1.8 m tall.
Leaves: Pinnately compound, stem leaves progressively reduced, basal leaves up to 50 cm long and nearly half as wide; leaflets pinnately cleft.
Flowers: Inflorescence of compound umbels on terminal and lateral stalks; flowers yellow; spokes 15-25, unequal.
Fruits: Broadly elliptic, 5-6 mm long, strongly flattened crosswise, glabrous.
Source: The Illustrated Flora of British Columbia