Trees 10-20 m tall; branchlets of current year, petioles, and rachis of inflorescences covered with short stellate hairs. Petiole 1.5-2.5 cm; leaf blade obovate-oblong to oblong, 20-35 × 6-11 cm, rigidly papery, concolorous, abaxially covered with short, stellate hairs along veins and sometimes with tuft of hairs on axils of veins, base broadly cuneate, margin serrate-dentate, apex obtuse to acute; secondary veins 25-30 on each side of midvein, ending in teeth; tertiary veins abaxially conspicuous, subparallel. Male inflorescences solitary in axils of leaves or in a panicle. Female inflorescences 3-5 cm; cupules in clusters of ca. 3. Infructescence ca. 7 cm; rachis ca. 5 mm thick. Cupule turbinate when young, discoid when mature, 1.5-3 × 4.5-6 cm, covering base of nut, wall 7-9 mm thick and woody; bracts ovate-triangular to oblique rhomboid margin and midvein ridged, apex subulate and incurved. Nut broadly conical when young and densely tawny puberulent, depressed globose when mature, 1.5-2.5 × 4-6.5 cm, apex flat but slightly concave in center, wall horny and 7-10 mm thick; scar covering ca. 1/2 of nut, ± convex. Fl. Apr-Jun, fr. Oct-Dec of following year.
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