Trees usually less than 10 m tall; branchlets, leaf blades abaxially, and inflorescences rachis tawny pilose and with stellate hairs. Petiole 1-3 cm; leaf blade oblong to obovate-elliptic, 10-25 × 3-9 cm, thickly papery, concolorous, base cuneate and sometimes asymmetric, margin at least near apex remotely dentate, apex acute, caudate, or rarely acuminate; secondary veins (15-)20-28 on each side of midvein, basal ones fusing near margin, apical ones ending in teeth; tertiary veins abaxially slender, evident, subparallel. Inflorescences usually androgynous, 3-10 cm; male flower on distal 1/2. Female inflorescence cupules fewer than 10, in clusters of ca. 3 or sometimes solitary. Infructescence rachis ca. 5 mm thick. Cupule cupular, 2-3 × 2.5-3.5 cm, enclosing 2/3-3/4 of nut, wall ca. 1 mm thick; bracts triangular to rhomboid, center and margin ridged, tawny puberulent and scurfy or rarely glabrescent. Nut turbinate, ca. 2 × 3 cm, hairy, apex rounded or flat, wall 4-10 mm thick; scar covering more than 1/2 of nut, convex. Fl. May-Sep, fr. Aug-Oct of following year.
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A small evergreen tree. It grows 10-15 m high. The young branches have yellow hairs. The leaf stalk is 1-3 cm long. The leaf blade is oblong and 10-25 cm long by 3-9 cm wide. It is thickly papery. The leaf is the same colour on both sides. There are 20-28 veins each side of the main vein. The flowers are usually of both sexes with the male flowers on the top half. The fruit is a nut which is half round and 2.5-3.3 cm across. It is 1.7-2 cm high. It is greyish yellow and hairy at the tip.
A tropical plant. It grows in mountainous regions in North Vietnam from 800 to 1,500 m altitude. It needs shade when young. It needs fertile, deep, moist soil.
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