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Branches pubescent. Spines scarcely exceeding 1/2 in. in our specimens, the lowest of each shoot short, slightly curved, the upper straight. Pinnæ in 2–7 pairs; rachis pilose-pubescent, interpinnal glands very minute; leaflets linear-oblong, broadly acute or obtuse, thinly ciliolate or glabrous, in 8–15 pairs. Peduncles solitary or 2 or 3 from each axil, 1/2–1 1/4 in. long; bracts minute at the base (or occasionally near the middle?) of the peduncle. Flowers capitate. (Calyx denticulate, pilose-margined, half as long as petals in the Cape form.) Legume straight, thick, 2-valved, with a continuous cavity, oblong or linear-oblong, obtuse or apiculate, compressed, valves continuous, woody, longitudinally faintly ridged, 3–6 in. long, 3/4–1 in. broad, nearly 1/2 in. in thickness. Seeds compressed, with a long funicle, broadly elliptical or roundish, 1/3– 1/2 in. long.