E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Annual herb from a fibrous root; stems erect, branched, 0.1-1.5 m tall, glabrous to sparsely soft-hairy.

Leaves:
Basal leaves lacking; stem leaves with 3 leaflets, these linear-elliptic to narrowly lanceolate or oblanceolate, 1-7 cm long, stalked.

Flowers:
Inflorescence of bracted racemes which elongate with maturity; corollas reddish-purple to pale pink or rarely white; petals 4, narrowly egg-shaped, 8-11 mm long; calyx lobes 4, abruptly pointed, not much longer than the tube; stamens 6, twice as long as the petals, with pink filaments.

Fruits:
Podlike capsules, spreading to drooping, 3-6 cm long; seeds roughened with blisters.