An erect comose tree 8–15 ft. high, the old branches terete, comparatively slender, armed with numerous straight spines, the young ones angular, sulcate, densely clothed with grey pubescence. Stipules lanceolate, pubescent, 1/4 in. long. Petioles 2–3 in. long, finely downy, slightly prickly; leaflets coriaceous, matted on both sides with close brown tomentum when young, glabrescent above when mature; central one blunt, 3–3 1/2 in. long and broad, the sides rounded, faintly repand; petiolule 1 1/4–2 in. long. Flowers in dense racemes 4–5 in. long, equalling the woody downy peduncles. Bracts lanceolate deciduous. Pedicels very short, tomentose. Bracteoles setaceous, 2–3 lines. Calyx 12–15 lines, thinly pubescent, slit more than halfway down on the lower side, the upper lip cut into five linear twisted teeth 3–4 lines long. Standard scarlet, 18–21 lines. Pod 2–3-seeded, densely clothed with close brown velvety tomentum when young, not seen mature.
