glabrous; stipular spines valid, short, or some long, white; pinnæ 2–4-jugate, with 1–2 jugal glands, and no petiolar; leaflets 8–13-jugate, oblong-linear, obtuse; peduncles axillary, bracteated below the middle; heads globose, legume straight or subfalcate, lanceolate-oblong, acute, coriaceous, flat, at length convex, obliquely veiny, tapering at base into a short stipe. A tree 20–30 feet high, with a very thick trunk, and thick branches and twigs. Bark of the twigs and branches a reddish brown. Leaflets deep green above, pale beneath and somewhat veiny, 3 1/2–4 lines long, 1 1/2 wide. Unripe legumes 2–2 1/2 inches long, 3/4 inch wide, 1–2-seeded.
