Tree 12-35 m high, lacking buttresses. Twigs somewhat flattened at nodes, usually glabrous; buds in distal leaf nodes relatively large. Leaf with petiole 0.3-4.5 cm long, and blade subcoriaceous to coriaceous, 7.5-23+ (leaf broken) by 3.8-13.5 cm, usually elliptic to broadly elliptic, occasionally narrowly elliptic or ovate, the base obtuse, rounded, slightly cordate, truncate or cuneate especially in narrow leaves and the apex broadly acute, obtuse, rounded, apiculate or sometimes acute, especially in narrow leaves; intervenium flat or somewhat bullate, sometimes drying ± shiny, yellow-green above; upper surface usually glabrous, lower one either ± glabrous or with rusty tomentum near veins, or rarely floccosely evanescent; glands absent; margin crenulate-dentate to subentire; secondary veins in 14-20 pairs, evenly spaced to somewhat irregular. Stipules triangular-ovate to ligulate, 0.5-1.3 by 0.4-0.5 cm, caducous, abaxial surface tomentose or sparsely pubescent. Inflorescence either false-terminal or terminal; when false-terminal, apical bud dormant or aborted, and median axis 0.5-5.5 cm long by 0.5-1 cm diameter, usually thicker in fruiting stage, with 1-4 pairs of major lateral branches; when terminal, median axis 9-18 cm long by 0.4-0.5 cm diameter, remaining relatively slender in fruit, with c. 3-6 pairs of opposite, lateral branches, up to 11 cm long; axes, outer surface of bracts and buds brown-tomentose, the indumentum evanescent on lower internodes and often much reduced by fruiting stage. Flowers bisexual and male, 5-8 mm diameter; 5-6-merous (except gynoecium); flowers sessile or pedicellate, the pedicel 1.5-3.5 mm long; calyx lobes 2.5-4.5 by 1.5-2.5 mm, outer surface densely to rather sparsely tomentose; petals 2.2-3.5 mm long, the basal part 1-2 mm plus teeth 1-2 mm long, petals as long as calyx lobes and teeth glabrous or rarely petals shorter than calyx and teeth hairy; filaments 2.5-4.5 mm long; anthers apiculate; disc lobes c. 1 mm diameter; ovary 2-3(-4)-carpellate, in bisexual flowers globose-conical, 2-3.5 mm diameter by 1.5-3 mm high, densely tomentose at anthesis, the hairs easily detaching; styles 2-3 mm long; ovules 2-3 per locule. Fruits ellipsoid or irregularly globose-oblate, up to 2.5-5 cm long by 2.5-5.8 cm diameter; epicarp rough, with numerous pale warty lenticels.
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