Tree 10-28 m. Twigs 6—10(—12) mm diameter, with dense felty-woolly yellow-brown or pale brown hairs (1-) 1.5-3 mm, late glabrescent; bark coarsely striate, soon longitudinally cracking, eventually transversely cracking and ± flaking; lenticels absent or indistinct. Leaves chartaceous, oblong(-lanceolate), 18-40(-45) by 6—13(—18) cm, base broadly or narrowly rounded or subcordate, apex acute-acuminate; upper surface drying olivaceous to (light) brown, finely pustulate and wrinkled, glabrous, lower surface with dense woolly hairs 1.5-2 mm long; dots absent; midrib flat above; nerves 15-20 pairs, above sunken, lines of interarching distinct and regular; venation lax, faint above, obscured by the indumentum on the lower surface; petiole 7-14(-20) by 5-7 mm, densely pubescent; leaf bud stout, 10-15 mm long. Inflorescences behind the leaves, densely woolly-pubescent; in male: stout, many-flowered, 3 or 4 times branched, (8-) 12-20 by 5-14 cm, peduncle 3-5 mm diameter, 0.1-1 cm long; in female: little branched, 1.5-3 cm long, few-flowered; bracts ovate to lanceolate, densely pubescent, 5-20 mm long, caducous; flowers (male) solitary or 2-3(-4) together, not densely clustered, glabrous, perianth (3-or) 4-lobed in male, (2-or) 3-lobed in female, pedicel not articulated. Male flowers: pedicel slender, (1.5-)3-4 mm long; buds broadly ellipsoid to obovoid, sometimes subglobose, not or slightly compressed, (2-)2.2-3 by 2-2.7 mm, cleft 1/5-1/4, lobes 0.2 mm thick; androecium ± ellipsoid or broadly obovoid, subtruncate, 1.2-1.5 (-2) by 1—1.3(—1.5) mm, not or only little compressed, base broadly rounded, often faintly 4-angular in cross section (Plate 2: 52); thecae 20-26, entirely sessile, apically slightly incurved, column broad, with shallow apical hollow 0.2-0.3 mm deep; androphore short, 0.1 by 0.4 mm, usually hidden by the slightly sagged anthers. Female flowers: pedicel stoutish, 2 mm long; buds broadly ellipsoid, 3.5 by 3 mm, cleft 1/6-1/5, lobes 0.4-0.5 mm thick; ovary broadly ovoid, 1.8 by 2 mm, glabrous except for a few minute hairs (always?) on the suture below the stigma, stigma minute, faintly 2-lobed, 0.3 mm long. Fruits (almost mature, according to Sinclair) subglobose to slightly ellipsoid, glabrous, 3 by 2.5 cm; pericarp 5 mm thick; fruiting pedicel 5 mm long; perianth (at first) persistent.
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