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General:
Perennial herb from a thick taproot and short rhizome; stems solitary, sprawling to erect, 15-60 cm long, hollow, glabrous or sparsely stiff-hairy.
Leaves:
Alternate, pinnately compound, 4-8 cm long, stalked; leaflets 5 to 9, elliptic to egg-shaped, 1-2.5 cm long; stipules membranous, narrowly egg-shaped, 3-10 mm long.
Flowers:
Inflorescence a compact, stalked, axillary umbel of 3 to 12 pea-like flowers, the umbel-stalks bractless or with a single membranous bract beneath the umbel; corollas 10-15 mm long, the banner and keel yellow, the wings cream; calyces 4-8 mm long, the tube 2-lipped, the upper pair of teeth lance-triangular, the lower 3 awl-shaped, all much shorter than the tube.
Fruits:
Pods, linear, 3-6 cm long, glabrous; seeds 5 to 20.
Source: The Illustrated Flora of British Columbia
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