General:
Annual herb from a taproot; stems 10-50 cm tall, simple to freely branched, glabrous.

Leaves:
Basal leaves few, shed early, oblanceolate, 2-6 cm long, 1-2 cm wide, sinuate to almost lyrate, narrowed to short stalks, glabrous; upper stem leaves unstalked, with earlike lobes at the bases, lanceolate to oblanceolate, toothed to wavy-margined and lobed, glabrous.

Flowers:
Flower stalks widely spreading to upcurved, 7-15 mm long, slender; petals white, 3-4 mm long; sepals 1.5-2.2 mm long, glabrous.

Fruits:
Silicles, oval to nearly heart-shaped, 10-17 mm long, 9-15 mm wide, strongly obcompressed, slightly notched, sinus 1.5-2.5 mm deep, wing-margined all around; beaks 0.1-0.2 mm long; seeds about 2 mm long, concentrically corrugated.

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