Trees, large, 20-25 m tall, to 80 cm d.b.h. Branches pale brownish red, subterete, lenticellate. Leaf axis green, 12-20 cm, inconspicuously striate; leaflets 3-5 pairs, subopposite; blades oblong or oblong-lanceolate, 10-14 × 3.5-5 cm, leathery, glabrous or subglabrous, lateral veins dense, intervals between veins less than 10 mm, vein axils with pellucid glands, base broadly cuneate, margin entire, slightly revolute when dry, apex nearly acuminate or obtuse. Inflorescences not seen. Fruit subglobose, slightly compressed, ca. 2 cm in diam., with conical short spines.

● Limestone mountains; ca. 1400 m. Yunnan (Malipo, Xichou).