Trees; trunk to 70 cm d.b.h. Branchlets grayish, densely lenticellate. Petiole 2-5 cm; leaf blade obovate-oblong to oblong, 12-25 × 5-7.2 cm, papery to thinly leathery, with scalelike glands when young, abaxially rusty scurfy along midvein, adaxially glabrous, base acute to attenuate and decurrent on petiole, margin with a few obtuse teeth near apex or sometimes entire, apex acute to shortly acuminate; secondary veins 12-25 on each side of midvein; tertiary veins abaxially conspicuous, subparallel. Male panicles to 20 cm; rachis and branches stout, with grayish scalelike glands. Female inflorescence rachis puberulent; cupules in clusters of ca. 3. Infructescence rachis 1-1.2 cm thick, lenticellate. Cupule plate-shaped, 7-10 mm × 1.5-2.5 cm, enclosing 1/5-1/4(-1/3) of nut, wall 1-2 mm thick and woody; bracts imbricate, triangular to rhomboid, appressed, with puberulent-scalelike glands. Nut chestnut brown, depressed globose to broadly conical, 1.6-2.2 × 2-2.8 cm, apex flat or pointed, wall ca. 0.5 mm thick; scar 1-1.5 cm in diam., concave. Fl. May-Aug, fr. Aug-Nov of following year.
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