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General:
Annual herb from a taproot; stems several, trailing to ascending, short-hairy, 10-35 cm long/tall.
Leaves:
Alternate, somewhat pinnately compound; leaflets 3, egg- to wedge-shaped, 5-15 mm long, the stalk of the terminal leaflet at least twice as long as those of the lateral leaflets; stipules egg-shaped, 4-9 mm long, joined to the leaf-stalk for 1/2 their length, the free tips triangular.
Flowers:
Inflorescence a dense, egg- to globe-shaped, axillary head of 30 to 100 drooping, pea-like flowers, the heads about 12 mm wide, lacking involucres; corollas yellow, becoming brown, 4-6 mm long, the banner broad, longer than the wings and keel; calyces 1/2 as long as the corollas, glabrous, 5-veined.
Fruits:
Pods, egg-shaped, about 2 mm long; seeds 1 or 2.
Source: The Illustrated Flora of British Columbia
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