Tree up to 45 m tall, sometimes with buttresses. Leafy twigs 3-8 mm thick, densely brown (sub)tomentose. Leaves spirally arranged; lamina elliptic to obovate to subobovate, 8-20(-28) by 4-11(-14), coriaceous, apex short-acuminate to acute (to rounded), base rounded to cordate, margin entire, revolute; upper surface brownish puberulous, mainly on the main veins; lower surface ± densely brownish puberulous on the veins; midrib slightly impressed above, lateral veins 8-18 pairs, tertiary veins scalariform; petiole 2-3.5 cm long, brownish puberulous to subtomentose; stipules 0.5-1 cm long, brownish puberulous, caducous. Staminate inflorescences axillary, solitary, capitate; peduncle 2-3.5 cm long, brown tomentose to puberulous; head globose, 2.5-3.5 cm diam.; involucral bracts 3, ovate, 0.5-1 cm long, brown tomentellous to puberulous; processes aculeate (or cushion shaped), c. 3 mm long and often slightly curved (or cushion shaped), (sub)glabrous; stamens 2, up to 8 mm long, filaments free or connate at the base, anthers 2.5-3 mm long, apiculate. Pistillate inflorescences axillary, solitary, capitate; peduncle 3-5.5 cm long, brown tomentose to puberulous; head globose, 2-3.5 cm diam.; involucral bracts 2-4, ovate, 0.5-1 cm long, brown tomentellous to puberulous; flowers numerous; processes aculeate, 2-4 mm long, often ± curved, basally connate in groups of 2-4 or free, subglabrous; stigmas subulate, 1-1.5 mm long. Infructescences subglobose, 5-9 cm diam., ± lobed, with numerous fruits; processes conical, up to 8 mm long.
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