Erect, sometimes slightly woody herb, 0.2–2 m high. Leaves 10–25 cm long, with a large squat ovoid or globose sessile gland near base of petiole; leaflets (3–)4–5(–6) pairs, lanceolate to ovate-elliptic, (2.5–)5–12 x (1.5–)2–4 cm, acute or acuminate, glabrous except for ciliolate margins and inconspicuous scattered glands beneath. Racemes from upper axils, very short, almost umbellate; peduncles 3–5(–8) mm long; bracts acute. Sepals obtuse. Petals yellow, obovate, 0.9–1.5 cm long. Stamens: 3 large, 4 medium-sized, 3 small. Pods linear, usually slightly upcurved, (5–)8–13 x 0.5–1 cm, not or tardily dehiscent, subglabrous, transversely septate within. Seeds many, transversly arranged, grey-brown, ovate-circular, compressed, 4.5–5 x 3.75–4.5 mm, minutely pimpled and with an elliptic areole on each face.
