Tree 9-30 m high and 12-40 cm in diam.; buttresses 1 m high, 1 m wide and 3 cm thick. Leaves (2-or) 3-or 4-jugate; rachis 5.5-21 cm, puberulous, glabrescent; petiole 1-2 cm, rugose. Stipules only found together with the limp young leaves, 1.7-2.2 cm long, caducous, leaving no scars. Leaflets sessile, ovate, elliptic, ovate-oblong, or oblong, 4.5-20 by 3-8 cm; apex mostly more or less acuminate, tip usually obtuse and emarginate; base conspicuously auriculate on the basiscopic side. Rachis of the inflorescence 14-25 mm, puberulous or pubescent, glabrescent; bracts 4-6 cm, sericeous, glabrescent; bracteoles 1.3-1.9 cm long, at c. 3 mm above the base of pedicel; pedicels 1.6-3.4 mm, puberulous, glabrescent. Hypanthium 1.5-2.5 mm deep. Sepals 13-18 mm, sometimes with a few hairs near the tip. Petals 11-19 mm long. Stamens 60-80; filaments 17-29 mm, connate over 2-4 mm at the base; anthers apiculate. Ovary 1.5-3 cm long, slightly to distinctly hairy; stipe 3-4 mm; style 15-17 mm. Fruits 2.2-2.5 by 1.2-1.3 by 1.1 cm, breaking off above the stipe.
A sub-canopy to canopy tree in primary lowland forest, often in swampy localities, sometimes in secondary forest; at elevations up to 75 metres, occasionally extending to 400 metres.
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