Tree, 15-20 m by 25-60 cm ø. Branchlets initially with a dense stellate tomentum, soon glabres-cent, inconspicuously lenticellate; terminal bud ovoid-ellipsoid, 3-7 by 2-3 mm, scales ovate-acute or linear-acute. Stipules linear, acute, c. 5 by 1 mm, soon caducous. Leaves thick-coriaceous, elliptic-oblong, (8-) 10-15(-19) by (3½-) 5-6(-7) cm, entire; surfaces concolorous, glabrous; base rounded, apex abruptly acute or ½-1 cm acuminate; midrib and nerves strongly prominent beneath, slightly so or flattish above; nerves 7-13 pairs, subparallel, ascending, at an angle of 60-70°, arcuating but not anastomosing towards the margin; reticulation fine, dense, subscalariform, distinct on both surfaces; petiole 2-3 cm, 1-2 mm ø, glabrous, adaxially flat. Male rachis 10-12 cm, 1-2 mm ø, solitary or in paniculate clusters; bracts and bracteoles ovate-acute; ♂ flowers in clusters of 3; perianth deeply incised, lobes 6, acute, 1-1½ mm, densely stellate tomentose outside, stamens 12, filaments 2-2½ mm, anthers c. ¼ mm long, pistillode subglobose, c. 2 mm ø. Young infructescence: rachis 15-20 cm, 2-3 mm ø, carrying 1-2 cupules. Young cupule ovoid-ellipsoid, sessile, 1½-2 cm through, adaxially flat and smooth; spines densely but irregularly set, ½-1 cm, glabrous, flat, tips sharp. Fruit solitary.
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A tree. It grows 35 m tall. The trunk is 60 cm across. The bark is smooth with slight cracks. The leaves are thinly leathery. They are narrowly oval and 13-18 cm long by 6-8 cm wide. They are rounded at the base and taper to a short point. The male and female flowers are separate. The male flowering stalks are 10-12 cm long with male flowers in clusters of 3. The female flowering stalks are 8-12 cm long and flowers occur singly. The fruit cup is rounded and almost without a stalk. There is one nut in each cup.
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