Arbor, 10-25 (- 35) meters high, diameter at breast height up to 150 cm. Branchlets 5-6 mm thick, young parts covered with yellowish brown tomentose, quickly becoming glabrous; There are columnar vascular bundles around the medulla, and a few vascular bundles are scattered in the center. Stipules, present only in bud, borne on branches near the base of petiole. Leaflets 3-6 pairs, papery to leathery, lanceolate or elliptic (to ovoid), 6-14 cm long, 2-5.5 cm wide, glabrous or bristles scattere...