Tree 10-35 m high and 25-9 ø, once recorded with broad buttresses ½ m high. Bark light brown, rather smooth, or slightly scaly. Leaves coriaceous, elliptic to elliptic-lanceolate, ovate-oblong, sometimes oblanceolate, 6½-30 by 3-9 cm; base rounded or cuneate; apex acute, obtuse, rarely acuminate; nerves 7-22 pairs, elevated beneath, faint or distinct above; veins reticulate, rather faint; petiole 1-7 cm (in saplings up to 12½ cm), convex beneath, bicanaliculate, concave, or flat above. Panicles terminal and sometimes also in the uppermost leaf axils, pyramidal, up to 25 cm long, glabrous; lateral branches up to 15 cm long, laxly flowered; floral bracts ovate, 3 mm long; pedicels ½-1½ mm. Flowers white or pale greenish white. Calyx 4-lobed, lobes ovate to ovate-oblong, 2-3½ mm long, glabrous. Petals 4, ovate-oblong or elliptic, 3½-4½ by 1½-2½ mm; ridges 3(-5), half the length of petals, apical parts free from the surface and bent away from it, confluent or close together at the lower ⅔ (sometimes distinct and slightly united at the base when young). Disk pulvinate and concave above, ⅔ mm high, 2 mm wide, obscurely shallowly 4-furrowed in bisexual flowers, 4-lobed in ♂. Stamens 4, 1 fertile, 2-2½ mm; filaments free; anthers oblong, 1 mm long; staminodes ¾ mm. Ovary subglobose, 1½-2 mm ø; style excentric, 1½-2 mm. Sterile pistil in ♂ ¾ mm. Drupe (fresh) dark purple when ripe, broadly ellipsoid, 8-10 by 5½-7 cm, flesh fibrous. Seed not labyrinthine.
Lowland forest, on inundated land or along riversides, rarely on limestone ridges, sometimes up to 900 m, once at 1380 m (in Pahang). Fl. Jan.-Nov.; fr. Febr.-Aug.