Trees to 10 m tall. Branchlets terete, stellate puberulent. Petiole 2-4 cm, stellate pilose; leaf blade nearly rounded, ovate, or obovate, sometimes 3-lobed, 7-16 × 5-12 cm, abaxially glabrous or stellate pilose, adaxially stellate pilose, palmate veins 5-7, base rounded to cuneate, margin irregularly dentate, apex obtuse, rounded, or shortly acuminate. Flowers ca. 1.3 cm in diam. Pedicel 0.8-1 cm, to 1.5 cm in fruit, stellate puberulent. Epicalyx lobes oblong-elliptic, ca. 5 × 2-3 mm, glabrous or sparsely stellate. Calyx cup-shaped, longer or shorter than bracteoles, lobes 5, connate for 1/2 length, glabrous. Petals light purple, obcordate. Capsule globose, ca. 4 mm; persistent epicalyx lobes oblanceolate, 1.5-2 × 0.25-0.5 cm, glabrous or nearly so. Fruit unknown.

Sparse forests in valleys; 500-1100 m. S Yunnan [Bhutan, India, N Vietnam].