Tree, (5-) 10-30 (rarely-50) m high; bole straight, maybe fluted at base or shortly buttressed, 15-40 (rarely-80) cm ø; bark grey-brown to brown-red, shedding in thin irregular flakes to expose lighter coloured patches so that the whole trunk is characteristically mottled; slash of inner bark finely fibrous, yellow-brownish, interspaced with blackish fibres and discrete droplets of white latex. Branchlets glabrous or puberulous, rarely rufous-tomentellous-scurfy at tips. Leaves ovate to elliptic or elliptic-oblong, sometimes slightly inequilateral, apex short-acuminate, tip blunt, base broadly cuneate to rounded, subcoriaceous to coriaceous, usually glabrous, rarely rufous-tomentellous on the nerves beneath (Borneo), green and shining above, yellowish-green beneath when fresh, rather dull olivaceous-brownish when dry, usually sparsely shallowly tuber-cled on both faces, the tubercles (or slightly impressed dots) in part blackish, (5-) 6-13 by (2.5-) 3-7 cm; nerves (4-) 5 (-6,-8) pairs, curved-ascending, the upper ones inarching before the edge, slightly though distinctly impressed above, much raised beneath in dry specimens, transverse veins and reticulation of veinlets rather inconspicuous; petiole (1-) 1.5-2 (-3) cm, not or hardly thickened distally. Spikes erect-ascending, (2-) 3-6 (-12) cm. Flowers arranged interruptedly, either solitary or mostly 2 or 3 together in opposite clusters, all over subglabrous or puberulous, rarely scurfy rufous-tomentellous (Borneo); bracts minute, ovate, acute. Flowers green to whitish-yellowish, subsessile, or pedicelled up to 1 mm. Calyx 4-5-toothed, 1 mm. Petals (3-) 4 (-5), ovate to ovate-oblong, with a few coarse hairs inside, 2.5 by 1.5 mm. Filaments white-greenish; anthers light brown. Ovary depressed-ovoid, lengthwise striate, glabrous; style short-cylindric. Drupe superior, subglobose, green turning yellow when fully ripe, pendulous, (1.5-) 2-2.5 (-3) cm ø, on a slender peduncle 2-3 mm; pericarp thin, exuding a milky gum, often tubercled outside, getting loose finally; endocarp woody, hardly 1 mm. Seed 1, subglobular.
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A moderate sized tree. It grows 10-50 m high. The trunk is straight and it may have buttresses at the base. The trunk can be 80 cm across. The leaves are alternate and simple. They are oval and 6-13 cm long by 3-7 cm wide. The flowers are 3 mm across. They are greenish-yellow. The fruit are green and turn yellow when ripe. They are 2 cm across. They are greenish-white and fleshy. There is one seed in each fruit.
Understorey tree in primary, also secondary lowland rain-forest, often in mixed Dipterocarp forest, undulating country, hillsides and ridges, up to 950 m, on loamy or sandy, rarely periodically inundated ground, scattered, or locally frequent.
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A fairly common but scattered understorey or rarely canopy tree of primary or sometimes secondary lowland rain forest at elevations up to 950 metres. It often thrives in mixed dipterocarp forest on undulating country or hillsides and ridges.
A tropical plant. It grows on hillsides and ridges up to 950 m altitude. It can be on sandy and clay soils. It grows in primary and secondary lowland rainforests and mixed dipterocarp forest.
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