Shrubs 1.5–4 m tall. Branchlets dark purplish brown or brown, glabrous, with sparse, curved robust prickles; flowering shoots short, pubescent, stipitate glandular, with curved prickles. Leaves imparipinnate, 3–5(or 7)-foliolate; petiole 5–8 cm, petiolule of terminal leaflet 1–2.5 cm, lateral leaflets subsessile, petiolules and rachis sparsely pubescent, stipitate glandular, with needle-like prickles; stipules linear, 6–9 mm, pubescent, with intermixed glandular hairs; terminal leaflet blade ovate, rhombic-ovate, or rhombic-lanceolate, lateral blade of leaflets rhombic-ovate or elliptic, 2–6(–8) × 1.5–4(–5) cm, abaxially densely gray tomentose, adaxially glabrous, base broadly cuneate to rounded, rarely subcordate, margin irregularly coarsely serrate or incised-doubly serrate, sometimes 3-lobed on terminal leaflet, often acuminate, but acute on lateral leaflets. Inflorescences terminal, rarely axillary, 1-or 2-flowered; bracts linear, 5–7 mm, pubescent, with intermixed glandular hairs. Pedicel 2–4(–5) cm, pubescent, with stalked glands and needle-like prickles. Flowers 1.5–2 cm in diam. Calyx abaxially ± pubescent, with stalked glands and needle-like prickles; sepals spreading, rarely reflexed in fruit, ovate-lanceolate or triangular-lanceolate, 1–1.5(–2) cm × 4–6 mm, apex caudate, margin gray tomentose. Petals white, spatulate, 7–8 × 3–4 mm, shorter than sepals, base broadly clawed, apex obtuse. Stamens numerous, shorter than petals; filaments linear. Pistils longer than stamens; basal part of style and apical part of ovary densely long gray tomentose. Aggregate fruit red at maturity, subglobose, 1.2–2 cm in diam., densely long gray tomentose; pyrenes rugulose. Fl. Apr–May, fr. Jun–Jul.
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