Description from Flora of China
Shrubs climbing, to 6 m tall, evergreen. Branchlets brown or reddish brown, densely tomentose at first, subglabrescent, with sparse, slightly curved small prickles. Leaves simple; petiole 3–6 cm, slender, tomentose; stipules oblong or oblong-lanceolate, free, 1–1.8 cm × 3–7 mm, membranous, villous, margin entire or apically with 2 or 3 teeth, apex acuminate; blade 8–15 × 7–14 cm, leathery, abaxially densely gray or yellowish gray tomentose, sometimes with sparse, minute prickles on raised veins, adaxially lucid-green, glabrous, base broadly cuneate to subrounded or cordate, palmately 3–5-lobed; lobes lanceolate or narrowly oblong to ovate-lanceolate, 7–11 × 1.5–2.5 cm, margin with sparse, coarse or thin sharp serrations, apex acuminate. Inflorescences terminal or axillary, racemes, 7–12 cm, 9–20-flowered; rachis and pedicels densely gray or yellowish white tomentose and villous, with few minute needle-like prickles; bracts oblong or oblong-lanceolate, 1–1.5 cm × 4–7 mm, membranous, villous, margin entire or apically with few teeth, apex acuminate. Pedicel 5–10 mm. Calyx ca. 1.5 cm, gray or yellowish white tomentose and villous, sometimes with intermixed glandular hairs; sepals reflexed after anthesis, narrowly triangular, 6–10 × 3–5 mm, margin entire, apex acuminate to caudate. Petals reddish, narrowly ovate, 7–9 × 3–6 mm, both surfaces pilose, base shortly clawed, margin erose or minutely crenate, apex obtuse. Stamens many, nearly as long as petals, villous. Pistils slightly longer than stamens, villous. Aggregate fruit black, subglobose, 1.3–1.5 cm in diam.; persistent styles reddish, villous; pyrenes somewhat reticulate. Fl. May–Jun, fr. Jul–Aug.
The young leaves are used for tea.
Slopes, mountainous areas, valleys, forests, thickets; below 2500 m. Guizhou, Hubei, Hunan, Sichuan.