Tree 5-35 m. Twigs 1.5-4 mm diameter, at first with rusty hairs 0.1-1 mm long, glabrescent; bark coarsely striate or grooved, not tending to crack or flake. Leaves membranous or chartaceous; (ovate-)elliptic or lanceolate, 6-20(-27) by 1.5-7 cm, base slightly rounded or cuneate-attenuate, the apex acute or acuminate; drying (greenish) brown above, early or late glabrescent; lower surface greyish, at first with stellate-and stellate-dendroid hairs of mixed sizes, 0.2-0.7 mm long, late glabrescent, the dendroid hairs sometimes more early shed and leaving distinct hair scars; dots present, especially on the veins; midrib ± flat or raised above; nerves (8-) 15-24 pairs, ± raised above; venation prominent, distinct; petiole 7-13 by 1.5-2 mm. Inflorescences: peduncle up to 2 mm long, brachyblast simple, 2-4 mm diameter; in male 5-10-flowered, female 2-6-flow-ered; flowers with persistent hairs 0.2-0.3 mm long, mixed with emergent hairs 0.5 mm long; perianth 3-lobed, reddish (?) inside. Male flowers: pedicel (subsp. crypto caryoides) 5-9 mm long, bracteole caducous, apical; buds subglobose, 3 by 3-3.5 mm, cleft 3/4-4/5, lobes 0.5-0.7(-l) mm thick; the staminal disc flat, circular, 1.5-2 mm diameter; anthers 11, just stiped, 0.4-0.5 mm long, horizontal, spaced; androphore 0.5-1 mm long. Female flowers: pedicel 2-5 mm long, bracteole median to apical; buds obovoid-oblong, 5 by 3 mm, cleft c. 1/2, lobes 1 mm thick; ovary ovoid, 2 by 1.5 mm, stigma subsessile, 2-lobed and each lobe again ± 2-lobulate. Fruits 1-5 per infructescence, subglobose or broadly obo void, base rounded or contracted into a short stipe (pseudostalk) up to 2 mm, 1.6-2.4 by 1.6-1.8 cm, with hairs either 0.1 mm or 0.5-1 mm long; dry pericarp 1-1.5 mm thick; fruiting pedicel 3-10 mm long.