Tree up to 25 m. tall; trunk up to 1 m. or more diam. Lvs coriac., 10-15 × 5-10 mm., on petioles 1-2 mm. long; lamina narrow-to elliptic-oblong, obtuse, obliquely cuneate at base, often apiculate; glab. or nearly so above, clad in dense greyish white tomentum below; venation us. distinct on both surfaces. Domatia absent. Staminate infls 1-4 per branchlet, on short sparsely pubescent peduncles; fls 1-2, sessile. Per. Broad-campanulate, 2 × 3 mm., shallowly obtusely 4-5-lobed; stamens 8-17, anthers 2-3 mm. long, dark red. Pistillate infls ovoid, 1-2 per branchlet, pubescent-pilose, sessile; fls 1-3. Lateral fls trimerous, terminal dimerous; stigmas clavate. Cupule 6-7 mm. long, glab. to pubescent, 3-partite. Nuts up to 7 mm. long; wings broad at base, narrowed to apex.
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