Tree 5-26 m. Twigs subterete to angular or ± ridged, 3-4(-5.5) mm diameter, hairs minute, early glabrescent, bark chocolate to greyish brown, finely longitudinally cracked with lenticels when older. Leaves chartaceous or subcoriaceous, elliptic-oblong to lanceolate, sometimes ± parallel-sided, (16-)20-29 by 6-9.5 cm, base short-attenuate to broadly rounded, apex (acute-)acuminate, margin flat; upper surface ± brown, often glossy, lower surface greyish to violaceous, with scattered appressed hairs, glabrescent; midrib above slightly sunken (grooved), narrow, 1 mm wide, nerves (11-) 13-18 pairs, at 60-70° to the midrib, below slender, distinct but not much prominent, venation indistinct at both surfaces; petiole 10-20(-25) by 2-2.5 mm; leaf buds 4-8 by 2-3 mm, sometimes with scale-like cataphylls, densely minutely appressed-pubescent. Inflorescences in male (broadly) paniculate, 3.5-4.5 cm long, up to 4 cm wide, many-flowered, with rusty hairs 0.3-0.5 mm long, in female 1.5-2 by 1 cm, fewer flowers but more dense; bracts broadly triangular, 2.5 by 3 mm, pubescent, caducous. Flowers rusty pubescent inside and outside, hairs 0.1-0.2 mm long. Male flowers: pedicel 2-2.5 mm long; buds ellipsoid-oblong, 2.5-2.8 by 1.5-2 mm, cleft 1/3 to nearly 2/3, lobes 3 or 4, triangular, slightly spreading, tube 1-1.8 mm long; androecium truncately ellipsoid-oblong, 1.7 by 0.6-0.7 mm, up to 0.2 mm stiped; anthers 6(-8), subsessile, free apices 0.3 mm long, erect. Female flowers: pedicel 1-2 mm long; buds narrowly obovoid, 3-3.5 by 2 mm, cleft 2/3-3/4, lobes 3 or 4, long-triangular, curved outward or reflexed, tube 0.7-1 mm long; ovary subglobose, minutely pubescent, 1.2 mm diameter, stigma sessile, minutely 2-lobed. Fruits c. 7 per infructescence, ellipsoid, 2-2.2 by 1-1.4 cm, with hairs 0.1 mm, or early glabrescent; pericarp 1.2-1.4 mm thick; fruiting pedicel 3-7 mm long.
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