Leaves predominantly 1-foliolate, basal ones sometimes digitately 3-foliolate; leaflets (15)17–45(55) × 3–11(13) mm, variable in shape, usually linear to narrowly elliptic, usually acute to acuminate at the apex, sometimes the basal ones broadly obovate to broadly oblong with rounded apices, glabrous above, densely silky hairy beneath; petiole 5–10(12) mm long, densely silky hairy; stipules (2)4–7 × 2–4 mm, lanceolate to narrowly ovate, acuminate, not dentate or rarely with 1–2 small teeth.
Inflorescences leaf-opposed or terminal, short, racemose, 1–3(5)-flowered; rhachis (15)20–35 mm long; peduncle 10–20 mm long; bracts small, 2–4 mm long, linear, silky hairy; bracteoles small, 0.5–1 mm long, linear, silky hairy.
Calyx 5–8 mm long; tube markedly shorter than the lobes.
Erect to procumbent perennial herb, 0.2–0.3 m high.
Seeds brown, c. 3 × 2.5 mm, distinctly verrucose.
Pods 18–24 × 5–8 mm, smooth, dehiscent.
Flowers 8–10 mm long, yellow.