Shrubs deciduous, erect, 3-6 m tall. Branchlets stellate woolly. Stipules filiform, 5-6 mm, caducous; petiole 3-11 cm, densely stellate woolly; leaf blade palmately 3-lobed, 8-12 × 7-11 cm, papery, both surfaces sparsely stellate hirsute, basal veins 5, lobes triangular, central lobe longer, apex acuminate, lateral lobes shorter, base rounded, truncate or slightly cordate, margin obtusely serrate, apex obtuse or shortly acuminate. Flowers solitary, axillary on upper branches. Pedicel 1-3 cm, densely stellate woolly. Epicalyx lobes 5 or 6, linear-lanceolate, 16-25 × 3-5 mm, densely stellate and hispid, apex obtuse to acute. Calyx campanulate, ca. 2.2 cm, lobes 5, ovate, densely golden stellate tomentose. Corolla white or pinkish with purple center, campanulate, 6-8 cm in diam.; petals obovate, ca. 6 cm, stellate and hirsute with long hairs abaxially, barbate at base. Staminal column ca. 3 cm. Style hirsute. Fl. Jun.
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