glabrous; stipular spines short or long (on the older twigs longest), straight, ivory-white; twigs, peduncles, and petioles angular; pinnæ 2–5-jugate, with small glands; leaflets 5–12-jugate, oblong-linear, obtuse or subacute; peduncles bracteate in the middle, the upper ones fasciculate-racemose; petals with revolute points; legume long, linear, flat, falcate, glabrous, coriaceous. This is the common Doorn-boom, or Karro-doorn, of the colonists. Spines 1/2 inch to 2–3 inches long, very sharp. Leaflets 3–4 lines long, 1–1 1/2 wide. Legume 4 inches long, 3 lines wide, with straight or irregularly sinuous margins.