Shrubs small. Branchlets slightly angled, glabrous; buds ovoid, glabrous, with several scales, apex subobtuse or acute. Petiole 4–6 mm, glabrous or pilose; leaf blades triangular-ovate or lanceolate-ovate, 3–4 × 1.5–2 cm, abaxially pubescent on veins, adaxially glabrous, midvein prominent on both surfaces, lateral veins 3 or 4 on each side of midvein, base usually truncate or subrounded, margin densely doubly serrate above base, apex acuminate. Racemes borne on new, leafy shoots, umbellate, 3–5 × 2–3 cm, 3–6-flowered; pedicels 10–17 mm, pilose basally; bracts linear, 3–4 mm, glabrous, caducous. Flowers 6–9 mm in diam. Hypanthium campanulate, glabrous abaxially. Sepals broadly triangular, 2–2.5 × 2.5–3 mm, margin ciliate, apex acute to shortly acuminate. Petals white, ovate or suborbicular, 5–6 × 4–5 mm, glabrous, base shortly clawed, apex subrounded or obtuse. Stamens ca. 30, longer than petals. Disk annular. Styles shorter than stamens; stigma discoid. Follicles slightly spreading, hirsute; styles terminal. Fl. May–Jun.
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