Shrubs evergreen, 1–3 m tall. Branchlets reddish brown, terete, glabrous, with curved prickles. Leaves simple; petiole 5–10 cm, glabrous, with curved prickles; stipules caducous; blade narrowly ovate or broadly ovate-lanceolate, 11–22 × 5.5–11 cm, palmately 5-veined, lateral veins 8–10 pairs, leathery, abaxially densely gray or grayish yellow tomentose, slightly villous along veins, adaxially glabrous, base cordate, margin undivided or shallowly undulate, irregularly coarsely sharply serrate, apex acuminate. Inflorescences terminal, cymose panicles; rachis and pedicels yellowish sericeous-villous; bracts similar to stipules, apex deeply lobed; lobes lanceolate, sericeous-villous. Pedicel 1–1.4 cm. Flowers 1–1.4 cm in diam. Calyx abaxially densely yellowish sericeous-villous, usually without glandular hairs; sepals ovate or ovate-lanceolate, margin entire, apex acute to acuminate. Petals absent. Stamens many; filaments linear. Pistils ca. 14–20; ovary glabrous. Aggregate fruit red, semiglobose, 1 cm or less in diam., glabrous, enclosed in calyx; pyrenes reniform, distinctly rugose. Fl. May–Jun, fr. Jul–Aug.
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