Trees to 15 m tall. Branchlets glabrous, lenticellate. Petiole 2-3 cm; leaf blade oblanceolate to sometimes oblong, 15-30 × 4-7 cm, rigidly leathery, concolorous, abaxially with grayish, pulverulent scalelike glands (visible under lens), adaxially glabrous, base cuneate and decurrent on petiole, margin entire, apex acuminate; secondary veins 9-11 on each side of midvein, adaxially ± impressed; tertiary veins abaxially conspicuous. Male inflorescences paniculate; rachis tawny pubescent. Female inflorescences to 20 cm, often with a few male flowers near apex; cupules in clusters of 3(-5). Infructescence rachis 6-10 mm thick. Cupule plate-shaped to cupular, 5-8(-13) mm × 1.5-3 cm, enclosing ca. 1/3 of nut, wall to 2.5 mm thick and woody near base; bracts imbricate, triangular to rhomboid, appressed, grayish puberulent. Nut conical, 2.4-3 × 1.8-2.8 cm, wall 1-1.5 mm thick; scar 1.2-1.8 cm in diam., concave. Fl. Jul-Aug, fr. Aug-Sep of following year.
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