Tree 6-20 m. Twigs terete to slightly angular, 1.5-2.5(-4) mm diameter, lower down 3-4 mm, when young rusty pubescent by woolly hairs, not very appressed, hairs woolly, to 0.5 mm long, glabrescent, greyish to brown with the bark smooth or finely longitudinally cracked, densely set with lenti-cels. Leaves chartaceous or coriaceous, (oblong-)lanceolate, 10-28(-30) by 3-7 (-9) cm, base attenuate, apex acute (-acuminate), margin not or but slightly re volute; upper surface olivaceous to brown and often glossy, lower surface brown to purplish grey, with dense ap-pressed hairs 0.2-0.3 mm long, late glabrescent; midrib above flat or slightly sunken, 1 mm wide, nerves 8-17 pairs, at 45-60° to the midrib, distinct but not prominently raised below, venation forming a coarse network ± indistinct at both surfaces; petiole 7-14 by 1.5-2 (-2.5) mm; the leaf buds 10 by 2 mm, densely appressed-pubescent. Inflorescences (broadly) paniculate, with rusty hairs 0.5 mm long; in male 4.5-7 cm long, up to 6 cm wide, many-flowered, in female (from infructescences) little or much branched, rather few-to many-flowered, 3-5 cm long; bracts broadly triangular, 2.5 mm, pubescent, caducous. Flowers rusty pubescent inside and outside, hairs 0.1-0.2 mm long. Male flowers: pedicel 2.5-4 mm long; buds ellipsoid-oblong, 3.5-4 by 2 mm, cleft to 1/4-1/2, lobes 3 or 4, (long-)triangular, somewhat spreading, tube 2-2.7 mm long; androecium ± truncately ellipsoid, 1.8-2.3 by 1.7 mm, stipe 0.2 mm; anthers 8-10, subsessile, the free apices 0.5 mm long, erect or curved slightly inward. Female flowers not seen. Fruits up to 25 in immature infructescences, 3-6 when mature, ellipsoid, 2.3-3 by 2-2.2 cm, hairs persistent, rusty, 0.2 mm; pericarp 3-5 mm thick; fruiting pedicel stout, 4-8 mm long.