Tree, up to 20 m high, dbh up to 36 cm, with up to 1.20 m high buttresses. Twigs 2-6 mm in diam., when young puberulous or tomentellous, soon glabrous. Leaves 1-foliolate to 5-jugate; petiole 1-6 cm long, 1-2 mm thick, terete to semi terete, sometimes grooved above; axes sparsely puberulous to glabrous; petiolules 3-8 mm long, above broadly to narrowly deeply grooved, with or without a median rib. Leaflets 3.5-14 by 1.5-6 cm, index 1.75-4.5, widest in or sometimes slightly above or below the middle, pergamentaceous, above glabrous or puberulous on the base of the midrib, beneath sparsely minutely sericeous all over, sometimes glabrescent; domatia present or absent (Bornean material) or always absent (Philippine material); base acute (to rounded), slightly attenuate; sides curved; apex rounded to emarginate or tapering into a short to long, narrow to broad, acute to rounded acumen; midrib above prominulous (to sunken), nerves 0.75-1.5 cm apart, above prominulous to grooved, intercalated veins mostly well developed, veins and veinlets mostly well differentiated, especially beneath, ± finely reticulate, above often more prominent than beneath. Inflorescences terminal, also sometimes pseudotermi-nal. Sepals less than 30-65% connate, 1.3-1.75 mm long. Petals not seen (according to Radlkofer 2 or 3 reduced ones present). Disc glabrous. Stamens 6. Ovary 2-(or 3-)celled. Fruits ellipsoid, c. 3.75 by 2.5 cm, densely fulvous puberulous, at least in the upper half of the appendages, these dense, 1.5-2 mm high, not differentiated into a basal and an apical part, at the base of the fruit forming longitudinal ribs, in the central part of the fruit triangles, towards the apex pyramidal warts; wall fairly hard, c. 0.75 mm thick.
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A tree. It grows 20 m high. The trunk is 36 cm across. It can have buttresses 1.2 m high. The leaves can have 5 pairs of leaflets. The fruit are oval and 4 cm long by 3 cm wide.
Primary and old secondary forests on slopes, riverbanks, and hill tops on clay-rich soil, and on fertile alluvial soil in mixed dipterocarp forest; at elevations up to 1,350 metres.
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A tropical plant. It grows in forests and along river banks and hill tops. It grows up to 400 m above sea level but has been recorded up to 1,400 m.
Uses Sarcotesta edible, see Jansen et al. Verheij & Coronel (eds.) Pl. Res. SE Asia (PROSEA Handb.) 2, Edible fruits and nuts 1991 348 .
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