Trees to 28 m tall. Branchlets of current year stout, conspicuously sulcate, grayish brown pubescent; branchlets of previous year with yellowish brown, thick, waxy scalelike trichomes. Leaves congested at apex of branchlets; petiole 2-3 cm, sturdy with yellowish brown, thick, waxy scalelike trichomes; leaf blade elliptic to rarely ovate, 15-20 × 6-9 cm, ca. 45 × 17 cm on stump sprouts, thickly leathery, abaxially pubescent when young, with yellowish brown, thick, waxy scalelike trichomes, and pale yellowish gray, usually oily, and shiny when dry, adaxially pubescent on midvein or glabrous, base broadly cuneate to acute, margin entire, apex acute to acuminate; secondary veins 12-19 on each side of midvein; tertiary veins abaxially subparallel. Male inflorescences terminal or rarely axillary, solitary, ca. 20 cm; rachis covered with appressed short hairs. Female inflorescence with cupules in clusters of ca. 3. Infructescence rachis stout. Cupule subglobose, 2-3 cm in diam., completely enclosing nut, apex narrowed, wall 0.5-1 mm thick; bracts imbricate, triangular-subulate, 2-4 mm, thickened, apex ± curved. Nut conical, 1.6-1.7 cm in diam., with tawny appressed minute hairs, apex narrowed; scar ca. 1.2 cm in diam., covering base of nut, ± concave at margin but conspicuously convex at center. Fl. May and Aug-Oct, fr. summer-autumn of following year.
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