Distribution: Occurring on both sides of the Cascades crest in Washington, but only occurring in the far western and eastern counties; British Columbia to California, east to the Rocky Mountains.
Habitat: Sandy, well-drained soil to wet meadowland, low to moderate elevations.
Conservation Status: Not of concern
Herbaceous perennial from thick, woody rhizomes, the stem 5-10 dm. tall, more or less hollow, densely pubescent, or glabrous below.
Leaves trifoliate, leaflets linear-elliptic to oblanceolate, up to 10 cm. long; stipules linear-lanceolate, leaf-like.
Inflorescence of sub-terminal, bracteate, axillary racemes, erect, 10- to 60-flowered, 1-3 dm. long; flowers pea-like, yellow, erect, 20-25 mm. long; calyx bell-shaped, bilabiate, the lips toothed; stamens 10, distinct.
Pods erect to spreading, straight, villous, leathery.