Tree, 7-20 m high, dbh at least 5 cm; bark brown; wood medium hard. Branchlets at most only sericeous when young; flowering twigs 3-13 mm thick. Leaves 2-4-jugate; rachis 4-17.7 cm long, terete, glabrous, petiole 3.5-7 cm long. Leaflets subsessile, opposite to alternate, ovate, 7-19.3 by 2.6-6.5 cm, index 2.7-3.2, ± symmetrical, otherwise acroscopic side broader, coriaceous, (punctate); base attenuate; margin entire, flat; apex acuminate to cuspidate, mucronulate; upper surface glabrous; lower surface duller, smooth, no papillae, glabrous (to very sparsely sericeous), domatia a single small sac on basiscopic side in axil of second nerve; venation on upper side flat (to raised), raised below; nerves 0.3-3.3 cm apart, marginally looped and joined, less distinctly so in lower part of leaflets; veins laxly reticulate, indistinct. Inflorescences ramiflorous to axillary, branching basally and along the flat to terete, subglabrous, 1.5-6.8 cm long axis; first order branches up to 2 cm long; cymules cincinnate, c. 3-flowered; bracts and bracteoles triangular, outside hirsute, inside glabrous; bracts 0.7-1.1 mm long; bracteoles 0.3-0.8 mm long; pedicels 1.8-4 mm long, subglabrous except for the glabrous articulate part. Flowers c. 3.5 mm in diam. Sepals 5, ovate, margin pilose, outside and inside glabrous; 2 outer smaller ones 1-1.6 by 1.2-1.3 mm, margin with glands; 3 inner larger ones 1.9-2.8 by 1.7-2.7 mm, margin petaloid, without glands. Petals 5, obovate, c. 2 by 0.6-0.8 mm, white; claw c. 0.3 mm high; margin pilose, outside and inside (sub)glabrous, apex acute; scales 1.2-1.3 mm long, free, basally not auricu-late, membranous margin indistinct; crest clavate, stipitate, apex lobed, glabrous. Disc interrupted. Stamens 8; filaments 2.7-3.1 mm long, pilose, especially basally; anthers c. 0.6 mm long, glabrous. Pistil: ovary c. 0.3 mm long, subhirsute; style and stigma c. 0.2 mm long. Fruits with 1-3 well developed lobes, 1.2-1.5 by 1.3-2.2 cm, completely dehiscent, smooth to somewhat ribbed, glabrous, blackish when dry; stipe 3-3.5 mm high, slender; margin blunt; lobes 11-15 by 7.5-9.5 mm; septa complete. Seeds immature; arillode with pseudo-funicle.
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