Tree up to 30 m. tall; trunk up to 2 m. diam. or more, often buttressed. Lvs thick, coriac., 25-35 × 20 mm., on petioles 2-3 mm. long; lamina glab. or nearly so, broad-ovate to elliptic-oblong to subrotund, cuneate at base; coarsely, shallowly, bluntly serrate, with 8-12 pairs of teeth; venation distinct. Domatia very rare. Staminate infls 1-8 per branchlet; peduncles up to 10 mm. long, sparsely pubescent; fls 1-3, subsessile. Per. campanulate, 4 mm. long, shallowly obtusely 5-lobed. Stamens 10-13; anthers 3 mm. long, yellow or dark orange. Pistillate infls 1-5 per branchlet, sessile, ovoid, 2-3 mm. long, sparsely pubescent. Fls as in , but stigmas less distinctly bilobed. Cupule up to 10 mm. long, 4-partite, segs acute, glands as in . Nuts puberulous, 8 mm. long.