Tree, 10-36 m by 15-80 cm ø; bark yellowish to reddish brown, smooth and peeling off profusely. Branchlets when young densely set with fulvous bundle-hairs, later glabrescent, slender, greyish or blackish brown, with many minute lenticels; terminal bud ovoid, 3-5 by 2-3 mm, scales ovate-acute, 3-4 by 2-3 mm. Stipules linear-triangular, 13 by 1½ mm. Leaves sometimes thickly coriaceous, (9-)14-17(-25) by (4-)5-8(-10) cm (index (1.7-)2.5(-3.2)), widest at or below the middle to sometimes above; base attenuate-acute or rarely rounded and abruptly acute, apex bluntly acute or sharply ½-1 cm acuminate; above glabrous or sometimes on and near the midrib with a few hairs, glossy olive-green, underneath dull brown with a dense cover of stellate scales (magnification 60!), sometimes also roughish with 2-3-fid bundle-hairs; midrib and nerves strongly prominent beneath, slightly so above; nerves (14-) 16-17(-20) pairs, ascending, at an angle of 50-70°, parallel, arcuating and disappearing towards the margin; reticulation fine, dense, scalariform, obscure on both surfaces; petiole (½-)l-1½(-2) cm, adaxially flat. Male rachis 5-15 cm, 1-2 mm ø; bracts and bracteoles ovate-acute, 1-1½ by 1 mm; ♂ flowers solitary or in clusters of 3-7, perianth lobes rounded or acute, membranous, 0.7-1 mm long, densely tomentose; filaments 2-3 mm, anthers 0.2-0.25 mm long; pistillode ¾-1½ mm ø. Female rachis 10-20 cm, 2-3 mm ø, bracts and bracteoles broadly ovate-acute, thick-coriaceous, 1-1½ by 1 mm; ♀ flowers in clusters of 3; perianth lobes acute, ¾-1 mm long, densely hairy outside; staminodes 10-12, exceeding the perianth; styles 3, conical-cylindrical, recurved, 1-1½ mm. Young infructescence up to 20 cm; young cupules numerous, subsessile, obovoid-globose; the segments between the 4 sutures covered with spines. Ripe (?) cupule sub-sessile to 7 mm stalked, ovoid-globose, 2½-3 by 3-4 cm; wall 1-2 mm thick, outside densely fulvous hairy, and more or less densely set with bundles of spines 4-14 mm long, fulvous-puberulous except the top, sturdy and more or less recurved or sometimes the inner ones of a bundle slender and straight; inside of wall with dense yellowish brown, silky tomentum. Fruits 1-3 per cupule, more or less conical, 1½-2 by 1-1½ cm, the scar covering ¼ part, convex; the free part with dense yellowish brown silky tomentum; wall thin.
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A moderate sized tree. It grows 36 m high. The trunk is 80 cm across. The leaves are leathery. There can be rusty brown hairs underneath. The leaves are 11-15 cm long by 3-7 cm wide. Male and female flowers are separate. The male flowering stalks are 9-14 cm long. The male flowers are in clusters of 2-3. The female flowering stalks are 7-12 cm long. The female flowers are in clusters of 3. The fruit cups are almost round. and about 2 cm across. There are 2-3 nuts in each cup. They are cone shaped and up to 2 cm long by 1.5 cm wide.
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