Tree, up to 24 m high, dbh up to 90 cm. Twigs 2-6 mm in diam., puberulous and early glabrescent to glabrous. Leaves 1-6-jugate; petiole 2-10 cm long, 1-2.5 mm thick, terete to semiterete; axes variably hairy or glabrous; petiolules 2-9 mm long, narrowly deeply grooved without a median rib or broadly grooved and sometimes with ± strongly lateral ribs or with a median rib. Leaflets elliptic to (narrowly) ovate, 5-18.5 by 1.5-4.25 cm, index 2-5.5, stiff-pergamentaceous to coriaceous, above glabrous or sometimes very sparsely hairy on the midrib, beneath very sparsely to fairly densely puberulous on midrib and nerves, between the nerves fairly densely minutely sericeous to glabrous; domatia present; base rounded to acute, attenuate; sides straight and parallel to slightly curved; apex acuminate, acumen short to long, broad to slender, rounded to emarginate or sometimes acute; midrib above a slender rib, slightly sunken or prominulous towards the apex, nerves 0.5-1.2 cm apart, above prominulous to slightly sunken, intercalated veins well developed, nerve pattern regular and dense, veins and veinlets on both sides hardly or beneath ± distinctly different, above mostly reticulate. Inflorescences mostly terminal, sometimes pseudoterminal, the lower branches axillary. Sepals up to c. 20% connate, 2-3 mm long. Petals 0-5, (obovate-)lanceolate, 1.6-2.3 mm long, at least the lower half woolly-ciliate. Disc glabrous. Stamens (7 or) 8. Ovary 2 (-4)-celled. Fruits more often with two carpels developing than in most species, slightly curved obovoid (especially when young) to ellipsoid, c. 2.5 by 1.5 by 1.25 cm, finally glabrous, fairly sparsely set with 2-3 (-8) mm long triangular appendages with short, curved, tongue-shaped apical part; wall coriaceous, barely 1 mm thick.
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