Leaves: unifoliolate or trifoliolate, leaflets linear-lanceolate, lanceolate, elliptic or ovate, 16-35(45) x 3-11(20) mm, sparsely pubescent above, densely pubescent below; stipules lanceolate, 3-6(8) x 1-2 mm; petiole (6)10-25 mm long. Inflorescences: 1-3-flowered axillary racemes, occasionally branched, 10-40 mm long, pubescent-glabrescent. Flowers: yellow, 6-10 mm long; bracts 1.0-1.5 x ± 0.2 mm. Calyx: tube 2-3 mm long, upper lobes 3-5 mm long, lateral lobes 2-4 mm long, carinal lobe 5-6 mm. Standard: 6-8 x 4-5 mm; wings 4-5 x 1-2 mm; keel 5-6 x 2-3 mm. Fruits: 15-20 x 5-6 mm, pubescent. Seeds: brown or black, 2-4 x 1-3 mm.
Perennial herb, climbing up to 1 m high. Stems procumbent. Leaves trifoliolate; leaflets distinctly linear to narrowly ovate to oblong, mostly twice as long as wide, glabrous, strongly reticulate. Flowers: inflorescence lax, 1-3-flowered, glabrescent to hairy; corolla yellow; all year. Pods with long silky hairs ± 2 mm long.