Description from Flora of China
Shrubs scandent, 2–5 m tall. Branchlets brownish to dark brown, tomentose, bristly, bristles purplish red, sometimes with intermixed glandular hairs. Leaves simple; petiole 2–3.5 cm, tomentose, bristly, bristles purplish red, or with intermixed glandular hairs; stipules caducous, free, lanceolate or ovate-lanceolate, 7–11 mm, margin laciniate, tomentose, bristly; blade narrowly ovate, 8–12 × 5–9 cm, veins yellowish brown, raised abaxially, abaxially densely yellowish gray tomentose, bristly along midvein, adaxially glabrous or soft hairy only along veins, base cordate, margin unevenly coarsely sharply serrate, undivided or slightly undulate, apex shortly acuminate. Inflorescences terminal or axillary, terminal ones cymose panicles, to 24 cm, many flowered, axillary ones smaller; rachis and pedicels bristly, bristles purplish red, tomentose or with glandular hairs; bracts lanceolate, 5–9 mm, margin shallowly laciniate, tomentose, bristly. Pedicel 5–8 mm. Flowers 1–1.5 cm in diam. Petals usually absent. Sepals lanceolate or ovate-lanceolate, 6–9 × 2–4 mm, both surfaces yellowish gray tomentose, margin entire, apex acuminate. Stamens many, shorter than sepals; filaments linear. Pistils less than 20, slightly shorter than or nearly as long as stamens; ovary glabrous. Fruit unknown. Fl. Jun–Jul.
Rocky slopes, forest margins; 1600--2100 m. Chongqing (Jinfo Shan), SE Yunnan (Hekou Yaozu Zizhixian).