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Perennial herb from a taproot and branching stem-base; stems spreading to ascending, 25- 90 cm long, slender, wiry, often branched, glabrous or sparsely appressed-hairy at the nodes.
Alternate, unstalked, pinnately compound; leaflets 5, unstalked, linear-lanceolate to narrowly egg-shaped, tapering to a pointed tip, the lowest pair of leaflets basal and stipule-like; stipules represented by tiny dark glands.
Inflorescence a compact, stalked, axillary umbel of 4 (to 7) pea-like flowers, the umbel-stalks slender, 4-12 cm long, with a 1- to 3-parted bract below the umbel; corollas yellow, about 10 mm long; calyces about 5 mm long, the awl-shaped teeth usually shorter than the tube.
Pods, narrowly cylindric, 1.5-3 cm long, spreading or nodding, glabrous; seeds up to 20.
Source: The Illustrated Flora of British Columbia