(Shrub to) tree, up to 33 m high, dbh up to 60 cm; no buttresses; outer bark brownish to black with numerous small pustular lenticels which sometimes form longitudinal lines, inner bark brown or red-brown streaks on paler background; sapwood pale to brown, heartwood yellow-brown. Branchlets crispy hirsute especially when young; flowering twigs 2.5-6.5 mm thick. Leaves (1-)2-5-jugate; petiolule up to 7 mm long. Leaflets ovate to elliptic, 3.7-18.3 by 1.8-7 cm, symmetrical to asym-metrical, thin to coriaceous, punctate or not; base (sometimes) asymmetrical; margin flat to slightly recurved; apex acute to acuminate (to cuspidate), usually mucronulate; upper surface mainly crispy hirsute on midrib; lower surface hirsute; domatia absent (or few shallow pockets); nerves mainly upwards marginally looped; veins distinct. Inflorescences in upper leaf axils and pseudoterminal, often rather sturdy, hirsute, up to 23.6 cm long, usually with a few up to 7.6 cm long branches; cymules cincinnate (to partly dichasial), up to 5-flowered; bracts and bracteoles triangular, sericeous; bracts up to 2 mm long; bracteoles up to 0.9 mm long. Flowers 3-4.8 mm in diam.; buds brown pilose. Sepals ovate, 1.1-1.6 by 0.6-1.4 mm, sericeous, green. Petals obovate, blade rhombic, 1.5-2.2 by 1.2-2 mm, white, claw 0.3-0.5 mm high, rather slender, margin not auriculate, apex truncate to rounded, outside and inside basally sericeous; scales 0.6-1.7 mm long, yellow; crest large, broad to high, clavate, usually glabrous. Disc yellow. Male flowers: stamens: filaments 3-4.4 mm long, white, anthers 0.7-1 by 0.6-0.8 mm, pinkish to red; ovary 0.6-0.7 mm high, style and stigma 0.2-0.4 mm long. Female flowers: stamens: filaments 1.4-2.5 mm long, anthers 0.6-0.9 by 0.4-0.7 mm; pistil: ovary 1.4-2.2 mm high, style and stigma 1.8-3.4 mm long. Fruits 1.9-2 by 1.5-1.7 cm, smooth, glabrescent, red, stipe 3.5-4.5 mm high, broadly triangular, lobes with 2-4 mm broad wings; axis with hairs below placenta. Arillode yellow, with straight appendage. Seeds obovoid, 7.5-8.5 by 4.5-6 mm.
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