General:
Biennial or short-lived perennial herb from a short taproot and a usually unbranched stem-base; stems erect, 0.2-1.0 m tall, simple or branched, hairy throughout with appressed 2-pronged hairs.

Leaves:
Basal leaves linear to linear-oblanceolate, entire or sparsely toothed, stalked, 1.5-8 cm long, 2-6 mm wide; stem leaves becoming reduced and unstalked upwards.

Flowers:
Racemes bractless; flower stalks 3-8 mm long, ascending, stout; petals pale to bright yellow, 5-10 mm long, long narrow, stalklike base, broadly oblong to nearly orbicular blades 2-3 mm across; sepals erect, narrow, often purplish, 4-6 mm long, densely hairy.

Fruits:
Siliques, 1.5-5 cm long, 1-2 mm wide, round in cross section, ascending to erect, densely hairy with 2-pronged hairs; beaks thick, 1-2 mm long; seeds oblong, 1.5-2 mm long, wingless.

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