Shrubs 1.2–1.8 m tall. Branchlets brown to purple, shining, slender, glabrous; buds small, with several scales, whitish villous, apex acute. Petiole slender, 3–5 mm, glabrous; leaf blade abaxially greenish, adaxially green, broadly ovate, 2.5–3.5 × 2–2.5 cm, glabrous on both surfaces, abaxially densely minutely papillose, veins prominent, base rounded, margin with 3–5 indistinct, obtusely triangular teeth on each side above middle. Racemes pedunculate, umbellate, 2–4 × 1.5–2(–3) cm, 5–10-flowered; pedicels 1–1.5 cm, glabrous; bracts linear or lanceolate, 1.5–3 mm, glabrous. Flowers 10–12 mm in diam. Hypanthium campanulate, glabrous abaxially. Sepals triangular, 1–1.5 × 1.5–2 mm, apex acute. Petals white, orbicular, 4–5 mm in diam., glabrous, base shortly clawed, apex obtuse, rarely emarginate. Stamens 40–50, longer than petals. Disk annular, lobed. Carpels glabrous; styles terminal, 3–4 mm; stigma capitate. Follicles unknown. Fl. Jun–Jul.
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