General:
Annual herb from a taproot; stems 0.2-1.0 m tall, freely branched, coarsely short-hairy to nearly glabrous, hairs sharp and bristlelike.
Leaves:
Basal leaves pinnately lobed into 3-7 segments, coarsely-toothed, 8-20 cm long, 5-15 cm wide, the terminal lobe largest; reduced above, often just wavy-margined or lobed.
Flowers:
In open terminal clusters, 10-30 cm long; flower stalks 5-10 mm long, spreading; petals pale yellow to whitish, 10-15 mm long; sepals 4-5 mm long.
Fruits:
Siliques, spreading to slightly ascending, often curved, 3-4 cm long, 3.5-4.5 mm wide, 3-nerved, coarsely short-hairy, few-seeded, often constricted between seeds; styles beaked, conspicuously flattened; seeds 3-8, minutely honeycombed, about 3 mm long.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Synonyms and Alternate Names:
Brassica hirta Moench