Shrub or small tree to c. 4 m high. Leaves 3-foliolate; leaf rachis with occasional small thorns; terminal leaflet broadly ovate to rhombic-trullate, (12–) 15–22 cm long, often slightly broader than long, rounded-truncate at base, densely pubescent when young, glabrescent above, with occasional small thorns on midrib and main veins below; stipules caducous; stipels conoid, c. 1 mm long, glandular. Inflorescence axillary, subterminal, 15–30 cm long, many-flowered, densely pubescent. Calyx campanulate, 1–1.5 cm long, with a short spur below, becoming glabrous. Petals bright crimson; standard narrowly elliptic, 5–7 cm long, not reflexed; wings 0.5–1 cm long; keel linear, 3–4 cm long. Pods 15–30 cm long, not or only slightly constricted between seeds. Seeds ellipsoidal, c. 1 cm long, red.
Can be grown by cuttings or seedlings. Seeds needs soaking.