Shrubs erect. Branches arching; branchlets brown or red-brown, angled, densely yellow villous initially, finally glabrescent; buds ovoid, with several scales, pubescent, apex acute. Petiole 1–2 mm, densely villous; leaf blade abaxially yellowish initially, later turning gray, adaxially dark green, elliptic to obovate-elliptic, 1.5–2 × 0.8–1 cm, abaxially densely tomentose initially, later papillose, adaxially sparsely tomentose, lateral veins 3 or 4 on each side of midvein, base broadly cuneate, margin with a few coarse teeth above middle or near apex, apex acute or subobtuse and mucronate. Corymbs terminal on lateral branchlets, compound, 2–4 × 2.5–3.5 cm, densely many flowered; rachis and pedicels densely dark yellow villous; pedicels 1–2 mm; bracts lanceolate to narrowly elliptic, 4–6 mm, villous. Hypanthium campanulate, villous abaxially. Sepals triangular, 1–1.5 mm, erect or spreading in fruit, apex subobtuse. Petals suborbicular, 2–2.5 mm in diam., glabrous, base shortly clawed. Stamens 25–30, nearly equaling stamens. Disk distinct, 10-lobed. Styles slightly shorter than sepals. Follicles somewhat erect, softly hairy; styles terminal, slightly divergent.

Forested slopes, mountain valleys; 2000--2200 m. C Yunnan.