Shrubs upright or climbing, 1–2 m tall. Branchlets reddish brown or brownish, cylindric, glabrous, with sparse prickles; prickles broad, flat, glaucous. Leaves simple; petiole 4–8 cm, glabrous, with minute prickles; stipules brownish, ovate or ovate-lanceolate, 1–1.5 cm × 7–10 mm, membranous, glabrous, margin entire; blade peltate, ovate-orbicular, 7–17 × 6–15 cm, both surfaces appressed villous, abaxially with more dense small prickles along midvein, base cordate, margin palmately 3–5-lobed; lobes triangular-ovate, terminal lobe slightly longer than or as long as lateral leaflets, irregularly tenuous-serrate, apex acute to shortly acuminate. Inflorescences ca. 5 cm or more in diam., 1-flowered; bracts ovate or ovate-lanceolate, 7–12 × 4–7 mm, glabrous. Pedicel 2.5–4.5 cm, glabrous. Calyx tube pelviform, glabrous; sepals ovate-lanceolate, 1–1.4 cm × 6–8 mm, soft hairy, margin usually dentate, or apically laciniate; lobes linear. Petals white, suborbicular, 1.8–2.5 cm in diam., longer than sepals. Stamens numerous, unequal in length, much shorter than petals; filaments subulate or linear. Pistils to 100 or slightly more, soft hairy. Aggregate fruit orange-red, terete or cylindric, 3–4.5 × 1–1.5 cm, densely soft hairy; pyrenes rugose. Fl. Apr–May, fr. Jun–Jul. 2n = 14.
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A shrub. It can be upright or climbing. It grows 1-2 m tall. The stems are red-brown. There are a few prickles. The leaves are simple and oval with the leaf stalk joining away from the edge of the leaf. They are 8-17 cm long by 7-15 cm wide. They have 3 or 5 lobes arranged like fingers on a hand. They are heart shaped at the base. There are irregular teeth. The leaf stalks are 5-8 cm long and have prickles. The flowers are white and have prickles. They are 3-4 cm across. The fruit is orange-red. They are 2-3 cm long and 2 cm wide.
Mountains, C. and S. Japan. Slopes, foothills, forest margins, ravines and moist waste places; at elevations from 300-1,500 metres.
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A temperate plant. In China it grows between 300-1,500 m altitude in eastern provinces. In Sichuan.
Can be grown by cuttings or seedlings. Seeds needs stratification.
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