Tree, 10-25 m by 15-40 cm Ø; bark surface smooth, grey. Branchlets initially densely set with short stellate hairs, later subglabrous, dark grey, finely fissured or lenticellate; terminal bud ovoid-globose, 2-3 by 1-2 mm, scales ovate or linear-acute. Leaves chartaceous, ovate-elliptic, (5-)8-10(-13) by (2-)3-4(-5) cm, entire; surfaces more or less concolorous, above glabrous, dull or glossy, underneath with sparse stellate hairs, acute or abruptly ½-1 cm acuminate; base rounded and abruptly acute; midrib and nerves thin, prominent on both surfaces, stronger beneath; nerves 8-11 pairs, parallel, ascending, at an angle of 60-70°, arcuating and anastomosing near the margin; reticulation fine, dense, scalariform, obscure on both surfaces: petiole ½-1 cm, 1 mm Ø, adaxially flat. Male rachises 5-10 cm by 1-2 mm, in dense paniculate clusters; bracts and bracteoles ovate-acute, 1-1½ mm, densely tomentose outside; ♂ flowers in clusters of 3; perianth deeply incised, lobes 6, ovate-acute, 1½-2 by 0.7 mm, densely tomentose outside, stamens 12, filaments 3-4 mm, anthers ¼ mm long, pistillode subglobose, 1.2-1.5 mm Ø. Female or androgynous rachises c. 5 cm by 1-2 mm; bracts and bracteoles ovate-acute, 1-1½ mm; ♀ flowers solitary; perianth 6-lobed, stami-nodes 12, rudimentary, styles 3, conical, 1-1½ mm long. Young cupule ovoid-globose, densely set with short tubercles. Ripe cupule sessile, asymmetrically depressed-subglobose, 3½-4 by 2½-3½ cm, indehiscent; spines sparsely set, rigid, flat, with sharp tip, c. ½ cm. Fruit solitary, of the same shape as the cupule, 3-3½ by 2-3 cm, wall 2-3 mm thick, rugose, completely adnate to the cupule.
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