Shrubs scandent, 0.5–1.5 cm tall. Branchlets grayish brown or brownish, with soft hairs and curved minute prickles, sometimes with sparse, short glandular hairs. Leaves simple; petiole 2–4 cm, soft villous, with sparse, short glandular hairs; stipules narrower, 0.8–1.2 cm, margin fimbriately to pinnately lobed; lobes linear-lanceolate, soft villous, with sparse, short glandular hairs; blade ovate-orbicular, rarely ovate, 6–9 × 5–7 cm, lateral veins 5 pairs, raised abaxially, slightly impressed adaxially, abaxially soft villous, more densely so along veins, adaxially sparsely soft hairy, base deep cordate, margin 3–5-lobed, rarely undulate, coarsely serrate, apex triangular-acute, rarely obtuse. Inflorescences terminal or axillary, narrow cymose panicles or subracemes, 6–12 cm, sometimes flowers several in leaf axils or solitary; rachis and pedicels tomentose-villous, with sparse, short glandular hairs; bracts 7–10 mm, fimbriately to pinnately lobed; lobes linear, soft villous, with sparse, short glandular hairs. Pedicel 5–8 mm. Flowers 1–1.5 cm in diam. Calyx abaxially tomentose-villous and with dense, short needle-like prickles; sepals broadly ovate, 6–8 × 3–5(–6) mm, apex acuminate; outer sepals pinnately divided, lobes lanceolate, inner sepals entire or only apically slightly lobed. Petals white, spatulate-obovate, 7–9 × 5–6 mm, base soft hairy, clawed. Stamens many, shorter than petals; filaments broadened and flattened, villous; anthers glabrous. Pistils numerous, shorter than or nearly as long as stamens; style and ovary glabrous. Aggregate fruit red, subglobose, 1–1.2 cm in diam. Fl. Jun–Aug, fr. Sep–Oct.
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