Shorea polysperma Merr.

Large buttressed tree. Twigs, buds, stipules, panicles, bracts and parts of petals exposed in bud ± densely persistently cream puberulent, petioles, nervation beneath, calyx and ovary so at first becoming glabrous on all but ovary. Twig c. 2-3 mm ø apically, compressed at first, becoming terete, smooth, blackish; stipule scars short, horizontal. Buds c. 2 by 1 mm, small, ellipsoid, stipules to 15 by 8 mm, lanceolate, acute, caducous. Leaves 7.5-15 by 2.5-6.5 cm, elliptic, thinly coriaceous, occasionally cream lepidote beneath; base cuneate; acumen to 2 cm long, tapering; nerves 9-12 pairs, slender but prominent beneath, slightly elevated above, arched, at 55°-75°, frequently with glabrous pore-like axillary domatia; tertiary nerves densely scalariform, sinuate, very slender, barely elevated beneath, obscure above; midrib slender but prominent beneath, obscurely depressed above; petiole 16-22 mm long, slender geniculate. Panicle to 16 cm long, terminal or axillary, doubly branching, spreading, many-flowered; branchlets to 7 cm long; bracts to 5 by 3 mm, ovate-deltoid, acute. Buds to 4 by 2 mm, small, fusiform; sepals broadly ovate, the outer 3 acute, the inner 3 smaller, shortly acuminate; stamens 15, shorter than style at anthesis; filaments broadly compressed at base, tapering abruptly medially and filiform beneath the subglobose anthers; appendage slender, ± glabrous, c. 2.5 x length of anthers; ovary subglobose, abruptly crowned by a slender glabrous style c. 2 x its length. Fruit pedicel to 3 mm long, stout, broadening into the receptacle; 3 longer calyx lobes to 9 by 1.8 cm, spatulate, obtuse, coriaceous, c. 6 mm broad above the c. 10 by 10 mm broadly ovate saccate thickened base; 2 shorter lobes to 5 by 0.4 cm, lorate, obtuse, similar at base; nut to 18 by 14 mm, ovoid, apiculate.

Widespread and often common, evergreen Mixed Dipterocarp forest on hills.

Can be grown by seedlings. Seeds needs soaking.