Shrubs 1–2 m tall. Branchlets brownish, glabrous; buds ovoid, with 2 scales, glabrous, apex acuminate. Petiole 5–7 mm, glabrous; leaf blade ovate to ovate-elliptic, 5–7.5 × 2.5–3.5 cm, abaxially softly hairy on veins and in vein axils, adaxially glabrous, base broadly cuneate, margin subobtusely singly serrate or doubly serrate, apex acute to shortly acuminate. Corymbs terminal on short, lateral branchlets, compound, 5–7 × 4–6 cm, many flowered; rachis and pedicels glabrous; pedicels 4–6 mm; bracts lanceolate or narrowly elliptic, 3–5 mm, glabrous, apex acute to shortly acuminate. Flowers 3–4 mm in diam. Hypanthium campanulate, glabrous abaxially. Sepals triangular, 1–1.5 × 1–1.5 mm, reflexed, rarely erect in fruit. Petals white, suborbicular, 2–3 × 2–3 mm, glabrous. Stamens much longer than petals. Disk annular, crenate. Follicles spreading, densely pubescent; styles terminal, divergent.
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