Tree 5-25 m. Twigs striate or not, 2-3.5 mm in diameter, at first with minute scurfy hairs 0.1-0.2(-0.3) mm long, early glabrescent; bark finely striate, not tending to crack or flake. Leaves chartaceous, oblong(-lanceolate), 7-25 by 2.5-10 cm, apex up to 1.5 cm acute-acuminate or subobtuse, base subcordate, broadly rounded, or attenuate, olivaceous-brown, with scattered hair scars above; lower surface greyish, with persistent sparse yellowish hairs 0.1 mm long, or early to late glabrescent, at first with weak greyish hairs of mixed sizes, 0.1-0.2(-0.3) mm long, in both cases mixed with scattered scars of early shed coarser hairs; dots absent; midrib little raised above; lateral nerves 10-22 pairs, flat or sunken above; venation ± coarse (aréoles 0.5 mm or more in diameter), distinct or indistinct; petiole 8-12 by 1.5-2.5 mm. Inflorescences: sessile, brachyblast simple or bifurcate, up to 5 mm long; in male 2-6(-10)-flowered, in female 1-6-flowered; flowers with dense hairs 0.1 mm long or less, perianth 3-lobed, yellowish (?) inside. Male flower (var. hirtella): pedicel 4.5-7 mm long, bracteole caducous or persistent, at or 1-2 mm below the apex; buds globose or broadly obovoid, 3-4 mm in diameter, cleft 3/4-4/6, lobes 0.5-0.8 mm thick; staminal disc flat or slightly convex, circular, 1.5-1.7 mm in diameter; anthers 9—13(—15), stiped or half-sessile, ± horizontal or oblique, 0.2-0.4 mm long, opening more or less downwards, spaced; androphore ± tapering, 1-1.5 mm long, in var. hirtella at base minutely hairy. Female flowers: pedicel 4-7.5 mm long, bracteole caducous, at or above the middle; buds ellipsoid or long-obovoid, 4.5-6 by 3.5-4 mm, cleft about halfway, lobes 0.7-1 mm thick; pistil 2.5-3 mm long, ovary ovoid, 1.5-2 by 1.5-2 mm, stigma subsessile, 2-lobed and each lobe again 6-8-lobulate or serrate. Fruits 1 or 2 per infructescence, ellipsoid or ovoid, 2.5-3(-3.5) by 1.7-2.6 cm, base rounded, apex rounded or acute, often with style remnant 0.5 mm, with hairs up to 0.5 mm long; dry pericarp 1.5(-2) mm thick; fruiting pedicel 4-10(-15) mm long.