Shrubs scrambling or suberect, 1–2(–3) m tall. Branches brown or dark brown, glabrous; annotinous branchlets brownish, glabrous, with sparse, curved prickles. Leaves simple; petiole 1.5–2.5 cm, glabrous, sometimes with sparse, small stalked glands; stipule linear or linear-lanceolate, 6–8 mm, glabrous; blade ovate or oblong to oblong-lanceolate, 6–12(–14) × 3.5–4.5(–6) cm, abaxially pale gray or somewhat purplish red, sometimes with sparse, slender prickles along midvein, adaxially usually green, glabrous except puberulous at base of midvein, base cordate to deeply cordate, basal incision sometimes narrow and deep forming overlapped incised margin, margin serrate, apex acuminate or abruptly with a 1–2 cm point. Inflorescences terminal or axillary, 1-flowered; bracts similar to stipules, but smaller. Pedicel 0.8–1.8 cm, glabrous. Calyx abaxially glabrous; sepals triangular-lanceolate, 6–8 mm, glabrous or with sparse, minute stalked glands, apex caudate. Petals spreading, white, longer than sepals. Stamens many. Pistils numerous, densely gray tomentose. Aggregate fruit pale golden, subglobose; pyrenes reniform, ca. 1.5 mm, alveolate. Fl. spring, fr. spring-summer.
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