Tree up to 18 m high, dbh up to 30 cm; bark dark brown or grey green, smooth. Twigs deeply grooved, up to c. 8 mm thick, fairly densely to sparsely hairy, glabrescent, branchlets redbrown to black. Leaves 2-4-jugate; petiole semiterete to terete, 6-11 cm long, 2-2.5 mm thick; petiolules 3-10 mm long, above hollowed. Leaflets subop-posite to alternate, elliptic, 7.5-20 by 3.5-7 cm, index 2-3, papyraceous to pergamentaceous; glabrous or beneath slightly puberulous on midrib and nerves; base symmetrical, acute to rounded, slightly attenuate; margin entire; apex tapering into a rather long and slender acute acumen; midrib above slightly raised; nerves 1-1.5 cm apart, spreading, curved, ending free, above slightly sunken, beneath prominent, intersecondary nerves exceptional; veins mainly transverse, veinlets laxly reticulate, rather inconspicuous. Inflorescences axillary, a thyrse, up to 25 cm long, widely branched from the base, branches up to 10 cm long, obliquely patent; flowers in stalked, many-flowered cymules, densely minutely hairy. Sepals c. 0.8 mm high, somewhat less than halfway connate, inside glabrous or sericeous. Petals 5 (or absent), unguiculate, the blade kidney-shaped, c. 0.5 by 0.7 mm, outside glabrous, inside woolly. Stamens: filaments short; anthers c. 1 mm long. Pistil 2-(or 3-)locular. Fruits with mostly only 1 lobe developed, obovoid-globular, c. 16 by 14 mm, slightly carinate close to the style remnant, otherwise smooth, densely ferrugineous-tomentellous; wall corky, c. 2 mm thick. Seeds: sarcotesta smooth.
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