Distribution: Along the coast in Washington; coastal from Alaska to California, inland to the Willamette Valley in Oregon.
Habitat: Near streams or forest clearings at low elevations.
Conservation Status: Not of concern
Succulent, climbing, pubescent to glabrous perennial, the stems 1-2 m. tall, hollow, conspicuously ridged, 3-7 mm. thick.
Leaves pinnate, 10-20 cm. long, tendrils very well-developed; leaflets 19-29, lanceolate to oblong, 2.5-4 cm. long, less than twice the length of the stipules.
Inflorescence of 7- to 20-flowered racemes, on axillary peduncles that may be much longer than the raceme; flowers pea-like, 14-18 mm. long, creamy-yellow to orange, often purplish-tinged; calyx half the length of the corolla, the upper 2 teeth under 1 mm. long, the lower 1 equal to the tube; style densely bearded at the tip.
Pod 3-4 cm. long and 1-1.5 cm. broad, nearly black when dry.