Shorea materialis Ridl.

Medium-sized tree. Young twig, panicle, leaf bud and petiole caducous cream lepidote. Twig 1.5 mm ø apically, terete, smooth, dark chocolate-brown; stipule scars c. 1 mm long, pale, falcate. Leaf bud to 3 by 1 mm, linear, acute. Stipule to 12 mm long, linear, fugaceous. Leaf 8-15 by 3.5-8.5 cm, broadly ovate, glabrous above, cream lepidote beneath; base cuneate to subcordate, unequal; apex with to 1.5 cm long slender acumen; nerves 9-12 pairs, slender but prominent beneath, set at 30°-45° to the midrib at base, glabrous; tertiary nerves slender, densely scalariform. Petiole 1.2-2 cm long, to 2 mm ø, cream lepidote. Panicle to 15 cm long, terminal or axillary, terete or ribbed; singly branched, branchlets to 12 mm long, bearing to 11 secund flowers; bracteoles to 2 mm long, ovate, acute, lepidote. Flower bud to 10 by 4 mm, lanceolate. Calyx sparsely evenly tomentose outside, glabrous within; lobes ovate, subacute, subequal. Corolla cream; petals linear, acute, shortly pubescent on parts exposed in bud. Stamens c. 30; filaments glabrous, flat at base, tapering and filiform below the anther; anthers ellipsoid, the 2 outer cells somewhat the larger; appendage to connective short, setose. Ovary and stylopodium ovoid-conical, densely evenly cream pubescent, tapering into a short glabrous style. Fruit pedicel 2 mm long, short. Fruit calyx sparsely pubescent towards base; outer lobes to 9 by 3 cm, spatulate, obtuse, tapering to 8 mm broad above the c. 8 by 8 mm saccate thickened base; 2 shorter lobes to 6 by 0.8 cm, linear, subacute, similar at base. Nut to 12 by 12 mm, broadly ovoid, densely shortly cream tomentose, tapering to the 4 mm acute style remnant.

A canopy to emergent tree in heath forest on white sand giant podsols of Quaternary marine and estuarine terraces, and sandstone cuestas at elevations up to 800 metres. Locally semi-gregarious.

Can be grown by seedlings. Seeds needs soaking.