Tree up to 25 m tall. Young leaves and shoots tomentose; tomentum deciduous, stellate, each hair 7-10 rayed with one long central hair. Leaves 5-7-lobed, 8-24 cm long, 12-30 cm broad; lobes coarsely toothed, glabrous; petiole 3-5 cm long. Stipules 2, c. 2 cm long, connate and tubular below; stipular tube membranous on the young shoots with a short limb and simple brown bristles; tomentose and leafy above on the older shoots. Male capitula sub-sessile, 2-3 on a peduncle, globose, 4-5 mm in diameter; peduncle c. 2 cm long. Perianth lobes free, c. 1 mm long, oblong, glabrous. Stamens 3-8, free, anthers oblong, 2.5 mm long; adnate to the connective; connective peltate with bristles at the apex. Female capitula sessile, 2-5 on a peduncle, globose, 1-1.5 cm in diameter; peduncle 7-11 cm long. Perianth lobes c. 2 mm long, spathulate with long jointed hair at the apex. Car¬pels 3-8, free; ovary linear, 1 mm long, covered with long jointed hairs, style 5-6 mm long, uncinate, persistant. Capitula of achenes 2-3 cm broad; achene c. 8 mm long, obpyramidal with long, jointed, yellow hair at the base ; style persistant.