Tree, c. 3-10(-17) m high, (2-)10-20(-30) cm diam. Leaves spirally arranged or subverticellate, very narrowly to narrowly elliptic or oblanceolate, c. (4-)6-10(-12) by 1-3 cm; base decurrent, margin often slightly undulate, top acute or very seldom rounded, generally slightly and gradually acuminate; midrib prominent, nerves not very conspicuous, c. 10-14 pairs the almost equally strong secondary ones included, reticulations very fine; petiole c. 1-1.5 cm. Inflorescences terminal or axillary, many-flowered, thyrsoid c. 3-4 cm diam.; peduncle c. 2-4 cm, pubescent; rhachis c. 1-4½ cm, pubescent; lower branches c. 2 cm, upper ones c. 0.5 cm, all pubescent. Bracts narrowly ovate, boat-shaped, c. 3 by 1 mm, slightly ciliate; pedicels 0-5 mm. Sepals nearly free, coherent at the base, elliptic, rounded, c. 1-2 by ⅔-1 mm, ciliate. Petals almost ligulate, c. 6-8 by 1 mm, 3-nerved, top almost truncate. Stamens in ♂ flowers c. 4-5 mm, in female flowers shorter; anthers in ♂ flowers oblong, c. 1.5-2 by 0.5 mm, apiculate, in female flowers sagittiform, c. 0.5-1 mm. Ovary c. 1 mm stipitate, glabrous, in ♂ flowers hardly thickened, c. 1.5 by 1 mm; ovules c. 6-8; style c. 2-2.5 mm, stigma not thickened; stipe in female flowers thicker; ovary ovoid, compressed, c. 1.5-2 by 1⅓-1.5 mm, glabrous; ovules c. 8-10; style c. 1 1/3 mm, stigma thickened. Fruits globose, compressed, mucronate, c. 1 mm diam., often with a stipe of variable (c. 1-3 mm) length; valves 2, thin, rugose; funicles inserted at the base of the valves, knob-like. Seeds c. 6-8, subreniform, c. 3 by 2 mm.
Characteristic for 'parang', I.c. thickets left of former forests from which the valuable timber trees have been removed (selective cutting), occasionally in rain-forest, common at low and medium altitudes up to 2300 m.
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Thickets, slopes and seashores, at elevations up to 300 metres in southern China. Thickets and secondary growth forest at elevations up to 1,400 metres in the Philippines.