Treelet or shrub, 2-6(-10) m; bark brown. Branchlets slender, glabrous. Leaves elliptic to subobovate-elliptic, apex rather abruptly short-acuminate (1 cm), tip obtuse, base broadly cuneate, slightly inequilateral, coriaceous, ± dull on both faces in dry specimens, glabrous, 15-20(-25) by (5-)6-10(-14) cm, midrib slightly impressed above, strongly raised beneath, nerves 5-6(-7) pairs curved-ascendent, the upper ones more distinctly looped, shallowly or not sunken above, prominent beneath, reticulation of veins and veinlets finely or hardly prominent above, hardly so beneath, or obscure on both faces; petiole 10-12 by (2-)3 mm. Inflorescences in foliate or defoliate axils; ♂ racemes several, sometimes very short and glomerate (galled then?), ♀ ones solitary or few; rachis 0.5-1.5 (rarely-3.5) cm, slender at anthesis, stoutish and somewhat accrescent in fruit, covered with short hairs or almost glabrous; pedicels 1 mm or less. ♂ Flowers (mainly from LÖRZING 5452, Sumatra): Calyx lobes ovate,fleshy, ciliate, 1.5 mm. Petals united in their lower ¾ part to a distally slightly enlarged tube, c. 5 mm including the erect free part, fleshy, white or greenish. Filaments 3 mm; anther cells elongate-elliptic, 1.5 mm. Rudiment of ovary cylindrical, base broadened, practically glabrous, as is the flat disk. ♀ Flowers: Calyx lobes and petals as in ♂ flowers. Anther cells reduced in size. Ovary ovoid, glabrous, style thick, 1 mm; stigma oblique, flattish-peltate. Disk thin or obscure. Drupe subovoid-ellipsoid or oblongoid, apex obtuse or apiculate, slightly longitudinally many-ridged or-keeled (generally more distinctly so on one side), blue-black, (1.5-)2-2.5(rarely-3) by 1-1.5 cm; exocarp spongious and fibrous, 1-2 mm; endocarp hard, thin.
Coastal and hillside inland lowland (also Dipterocarp) forest, sometimes on rather dry land, sandy loam soil, up to 400 m.
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