Tree up to 45 m high, dbh up to 45 cm. Twigs slightly (to strongly) grooved, 5-12 mm diam., densely fulvous (or ferrugineous tomentellous), early to tardily glabrescent; bark dark purple brown, not lenticellate. Leaves: petiole sharply subterete, above with a narrow groove, 2-10 cm long, 2-5 mm broad; petiolules in lower leaflets terete and slender, up to 12 mm long, upwards becoming conical and shorter or absent, always above narrowly grooved. Leaflets ± elliptic, 6.5-25 by 2-8.5 cm, index 1.5-4.5, pergamentaceous (to papyraceous), above hairy on midrib (and nerves, beneath on the veins, or subglabrous); base acute to rounded, often slightly attenuate; apex retuse to tapering into a fairly long acute acumen, mostly mucronate; midrib above mostly sunken in a narrow groove, sometimes prominulous, beneath prominent; nerves more than 14 per side, 3-15 mm apart along the midrib, straight to usually slightly curved, at least the upper ones usually looped and joined towards the margin, prominulous (to slightly grooved) above, prominent below; intersecondary nerves hardly (to well-developed); veins and veinlets transversely reticulate (to laxly scalariform), above indistinct, beneath more prominent and often minute. Inflorescences up to c. 40 cm long with rather few divaricate to oblique-erect branches, hairy like the twigs. Flowers white, greenish white, or cream. Sepals ovate, 1.4-2.5 by 1-1.8 mm. Petals elliptic (to suborbicular or spatulate), 1.4-3 by 0.5-2 mm. Stamens: filaments 2-4 mm long; anthers 0.5-1 mm long. Pistil: ovary c. 1.5 mm high, style up to 4.5 mm long. Fruits (l-)1.5-2 cm diam., yellow, not stipitate, apiculate. Seeds 10-16 by 7.5-11 mm.
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