Tree 20 m. Twigs 4-5 mm diameter, early glabrescent, hairs rusty or greyish, less than 0.1 mm; older twigs coarsely striate and somewhat fissured; lenticels small, not contrasting. Leaves coriaceous, oblong or oblong(-lanceolate), 20-30 by 6-10 cm, base short-cuneate or nearly rounded, apex acute or subacute-acuminate, or rather blunt; upper surface olivaceous(-brown), lower surface glabrous (early glabrescent), brown; not papillose; dots absent; midrib above flat, lateral nerves (12-) 15-20 per side, at (45-)60° to the midrib, slender, flat and faint above, faint below, lines of interarching and venation indistinct; petiole 15-20 by 5 mm; leaf bud 15-20 by 4-5 mm, hairs scale-like, grey(-brown), less than 0.1 mm. Inflorescences among the leaves or just below, of the Knema-type, a sessile scar-covered brachyblast 3-5 mm diameter, rusty-greyish short pubescent; bracts small, caducous; in female: with 1-3 small flowers or 1 or 2 flowers together with a submature fruit; flowers with short appressed brown hairs 0.1 mm. Male inflorescences and male flowers not seen. Female flowers: pedicel short, less than 0.5 mm, bracteole ± saucer-shaped, 1.5 mm, (sub)persistent; buds ± ovoid, 5 by 3 mm, lobes not seen; ovary ovoid, 3-3.5 by 2.5 mm, hairs dense, rusty, appressed, 0.1(-0.2) mm. Fruits usually solitary, sessile, subglobose, (4-)5 cm diameter, hairs scurfy, rust-coloured, 0.1 mm or less; pericarp woody, (6-)8-10 mm thick; seeds not seen; fruiting pedicel (almost) absent.