General:
Annual or biennial herb from a taproot; stems 30-100 cm tall, usually branched above, occasionally from the base; finely starlike-hairy, often greyish, sometimes with some simple hairs.

Leaves:
Basal leaves few; stem leaves very deeply twice or thrice pinnately lobed to twice or thrice compound, oblanceolate to widely egg-shaped, short-stalked, 2-10 cm long, ultimate lobes of leaves generally linear.

Flowers:
Racemes elongated; flower stalks slender, ascending, 7-14 mm long, less than half the length of the siliques; petals pale yellow, needle-like, spoon-shaped, about length of sepals; sepals 2-2.5 mm long, greenish or yellowish.

Fruits:
Siliques, nearly erect, linear, 11-33 mm long, 1-1.5 mm wide, inconspicuously constricted between the seeds, rounded at tip; seeds (12) 15-25 per chamber in one row, 0.7-1.5 mm long, oblong-elliptic.

Source:  The Illustrated Flora of British Columbia

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:
Sisymbrium sophia L.
Sophia sophia (L.) Britton