Trees to 25 m tall, glabrous except for inflorescences and nuts. Petiole 1-3 cm, base thickened; leaf blade narrowly oblong to rarely obovate-oblong, 15-24 × 5-8 cm, thickly papery, concolorous, base broadly cuneate, decurrent on petiole, and often asymmetric, margin entire, apex shortly acuminate; secondary veins 11-16 on each side of midvein; tertiary veins abaxially slender, evident. Male inflorescences solitary or clustered; rachis densely tawny pubescent or sometimes glabrescent. Female inflorescences in clusters of 2 or 3 at apex of branches, to 25 cm; cupules in clusters of 3-5. Infructescence rachis 6-8 mm thick. Cupule shallowly bowl-shaped, 0.8-1.3 × 2-2.5 cm, enclosing less than 1/2 of nut, wall woody and basally thickened; bracts ± connate into concentric and ± raised rings, broadly triangular, densely rusty puberulent. Nut depressed globose to conical, 1.4-3 × 1.5-2.5 cm, densely tawny to rusty farinose. Fl. Mar-May, fr. Aug of following year.
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