Tall, buttressed tree with hard wood and flaky bark. Young parts and panicle greyish puberulent, glabrescent; petals persistently puberulent on parts exposed in bud. Twig c. 2 mm ø apically, ribbed, much branched, becoming terete, rugose, dark brown. Leaf buds minute, ellipsoid; stipules not seen, fugaceous. Leaves 18-19 by 2-5.5 cm, lanceolate, falcate, coriaceous, lustrous; margin narrowly subrevolute; base prominently unequal, cuneate abaxially, cordate adaxially; acumen to 1.5 cm long, broad, tapering; nerves 9-12 pairs, slender but prominent beneath, ± narrowly depressed above, arched, ascending at 45°-50° except at base; without secondaries; tertiaries densely scalariform, very slender but distinctly elevated beneath; midrib prominent beneath, slender but prominent above; petiole 5-8 mm long, short. Panicles to 5 cm long, terminal or to 3-axillary, slender; singly branched, branchlets to 1.5 cm long, bearing to 5 flowers. Flower buds to 3 by 2 mm, ellipsoid. Sepals ovate to suborbicular, subacute. Stamens 15; appendage c. 4 times the length of the anther cells. Gynoecium glabrous; ovary ovoid, surmounted by a cylindrical stylopodium twice its length and very short style. Fruit pedicel c. 1 mm long, short. 2 longer calyx lobes to 7 by 1.3 cm, spatulate, obtuse, c. 3 mm broad above the to 8 by 6 mm ovate saccate thickened base; 3 shorter lobes to 9 by 7 mm, ovate, acute. Nut to 14 by 8 mm, ovoid, stoutly apiculate.