Description from Flora of China
Shrubs 0.5–2 m tall. Branchlets brownish or grayish brown, angled, glabrous, with sparse, curved prickles. Leaves imparipinnate, 3–5(–7)-foliolate; petiole 1.5–2(–4) cm, petiolule of terminal leaflet 1–1.5 cm, lateral leaflets subsessile or shortly petiolulate, petiolule and rachis glabrous or pilose when young, with sparse, minute prickles; stipules lanceolate, 6–10 × 1.5–2.5 mm, margin pilose initially, glabrescent; blade of leaflets ovate or elliptic, rarely ovate-lanceolate, 2–5(–7) × 1–3 cm, both surfaces pilose when young, abaxially sparsely pilose only along veins in age, with minute prickles along midvein, base rounded, margin sharply incised doubly serrate, apex acuminate to long acuminate. Inflorescences usually terminal on lateral branchlets, 1-flowered, rarely 2- or 3-flowered; bracts lanceolate, 6–8 × 1.5–2 mm, puberulous, glabrescent. Pedicel 2.5–5 cm, glabrous or with gland-tipped hairs, with sparse, small prickles. Flowers 3–4 cm in diam. Calyx abaxially glabrous; tube pelviform; sepals reflexed in fruit, oblong-lanceolate or triangular-lanceolate, 0.9–1.2 cm × 3–5 mm, apex subulate-acuminate, inner sepals with tomentose margin. Petals white, elliptic or broadly ovate, 1.2–1.5 cm × 8–11 mm, glabrous, base shortly clawed, margin entire or undulate, apex obtuse. Stamens many, shorter than petals; filaments linear. Style and ovary glabrous. Aggregate fruit red, subglobose, 0.9–1.1 cm in diam., glabrous; pyrenes smooth or slightly rugulose. Fl. Apr–May, fr. Jun–Jul.
Foothills, forests, slopes, thickets, river banks; 500--2300 m. Guizhou, Hubei, Hunan, Shaanxi, Sichuan, Zhejiang.