Shrubs to 1.5 m tall. Branchlets red-brown turning gray-brown, terete or slightly angled; buds long ovoid, with 2 scales, apex acuminate. Petiole 2–10 mm, glabrous; leaf blade oblong-ovate, oblong-lanceolate, or oblong-oblanceolate, 1–3 × 0.7–1.5 cm, glabrous on both surfaces, base cuneate, margin entire, apex obtuse. Corymbs terminal on short, lateral branchlets, compound, 3–5.5 × 4–5 cm, many flowered; rachis and pedicels glabrous; pedicels 4–7 mm; bracts lanceolate to oblong, 2–4 mm. Flowers 4–6 mm in diam. Hypanthium campanulate or subcampanulate, glabrous abaxially. Sepals triangular, 1–2 mm, erect in fruit, apex acute. Petals white, suborbicular, 1.5–2.5 mm, glabrous, base shortly clawed. Stamens ca. 20, longer than petals. Disk annular, 10-lobed; lobes obtuse or emarginate at apex. Carpels pubescent; styles shorter than stamens. Follicles erect, spreading, puberulous; styles on abaxial side, slightly divergent. Fl. May–Jun, fr. Jul–Aug.
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