Tree to 35 m high and 60 cm in diameter; buttresses steep to 3.6 m high, 3 m wide, 5.2 cm thick. Stipules intrapetiolar, lanceolate, 2-3.5 mm long, deciduous. Leaves 3-5 (-7)-foliolate, shortly petioled; petiole and rachis 1.5-4(-6.5) cm long, loosely puberulous, glabrescent, or glabrous, prolonged beyond the upper petiolule into a usually deciduous, short tip. Leaflets chartaceous or subcoriaceous, elliptic, ovate-or obovate-elliptic, (3.5-)5.5-13 by (1.3-)2.5-5 cm, the lower ones usually smaller; apex acuminate or caudate; base obtuse, or cuneate, symmetric; sparsely puberulous or glabrous above, loosely, minutely puberulous beneath; nerves 4-8 per side; petiolules short, 2-5 mm, puberulous, glabrescent, or glabrous. Inflorescences axillary or terminal, up to c. 9(-20) cm long, erect, the rachis puberulous, moderately loosely flowered; bracts deltoid or 3-lobed, up to 4 mm long, sparsely puberulous outside, caducous; bracteoles at about halfway (or lower half of) the pedicel, minute, triangular, c. 0.6 mm long; pedicels 3-4 mm, articulated at the base, sparsely puberulous. Flowers whitish, sparsely puberulous outside. Hypanthium c. 0.6 mm long, glabrous inside. Calyx lobes unequal, broadly elliptic, elliptic, or oblong, 3.5-4 by 2.5-3 mm, glabrous inside. Stamens (8-) 10; filaments up to c. 11 mm, glabrous; anthers c. 1 mm long. Pistil shortly stipitate; stipe c. 1.5 mm long, free, glabrous; ovary c. 3.5 mm long, 2(-4)-ovuled; style c. 8 mm, glabrous; stigma obscure, slightly thicker than the style. Pods ovate-oblong or broadly elliptic, 5-8 by 3.5-4.5 cm, with a very short beak, brownish hairy, 1 (or more-)seeded. Seeds broadly obovate, c. 3.5 by 2.5 cm.
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