General:
More or less tufted, perennial herb from a taproot and often a branched stem-base with somewhat rhizome-like branches, leaf bases persistent; stems several, few-leaved, 2-10 cm long, glabrous.

Leaves:
Basal leaves in rosettes, thick, fleshy, entire or shallowly 1-3 lobed, blades 5-30 mm long, diamond-shaped to elliptic to egg-shaped, narrowed to slender stalks 2-4 times as long; stem leaves 0-3, reduced.

Flowers:
Inflorescence a few-flowered, umbel-like raceme; flower stalks 4-10 mm long, ascending; petals white, 3-5 mm long; sepals 1.5-2 mm long.

Fruits:
Siliques, erect, 1.5-3.5 cm long, 1-1.5 mm wide; styles stout, 1-3 mm long.

Source:  The Illustrated Flora of British Columbia