Tree 18-30 m. Twigs 2.5-4(-5) mm diameter, late glabrescent, hairs conspicuous, chocolate, flossy, 1-1.5 mm long; older twigs blackish, coarsely striate; lenticels small, scattered. Leaves thinly chartaceous, oblong(-lanceolate), 17-27(-30) by 5-9(-10.5) cm, base cuneate, apex acute-acuminate; upper surface olivaceous-brown, lower surface pale brownish grey, ± glabrescent, hairs scattered, appressed, usually some light brown flossy hairs, 0.5-1 (-2) mm, persistent on and near the midrib towards the base; not papillose; dots absent (but see note 2); midrib flat or raised above, lateral nerves 14-18 per side, at 45-70° to the midrib, flat, lines of interarching and venation inconspicuous; petiole 15-20 by 2.5-4 mm; leaf bud 15-20 by 3-4 mm, curved (uncinate), hairs 1(—1.5) mm long. Inflorescences between the leaves or below; male unknown; in female: peduncle 10-12 mm long, with at the end 1-3 flowers, with bright red-brown flossy hairs 1 mm. Male flowers not known. Female flowers: see note 1. Infructescences below the leaves: peduncle 10-20 by 4(-5) mm, with at the end 1 or 2 scars of fallen flowers, and mostly with a single fruit. Fruits broadly ovoid-subglobose, 6-7 by (4-)5.5 cm, the very apex ± narrowed, often ± hooked, hairs dark brown, 1-1.5 mm; pericarp 10 mm thick; seeds ovoid, 3.5 cm long; fruiting pedicel 10 by 4 mm, bracteole scar invisible or subapical.