Woody climber up to c. 3 m high; young stems densely pubescent with appressed to spreading ± ferruginous hairs. Leaflets (14–)18–26, oblong, rounded and mucronate at the apex, 6–12 x 2–4.5 mm, appressed pilose on both surfaces, venation raised and prominent above. Inflorescences to 14 cm long including peduncle. Calyx 3–3.5 mm long, denticulate, pubescent with appressed ± ferruginous hairs c. 0.4 mm long. Corolla lilac, 11–12.5 mm long. Pod oblong, 4–6 x 1–1.1 cm, with a downcurved beak, pubescent with white or ± ferruginous appressed hairs. Seeds 5–7, immature ones greenish, compressed, 5.2–5.6 x 4.4–4.5 mm.