Description from Flora of China
Shrubs ca. 2 m tall. Flowering branchlets 2-6(-20) cm, 4-6-leaved. Petiole 3-5 mm; leaf blade abaxially grayish green, ovate or ovate-oblong, 3-9 × 1.5-4 cm, papery, abaxially densely 5- or 6-rayed stellate hairy, hairs along veins with central rays, adaxially slightly rugose, 4- or 5(or 6)-rayed stellate hairy, veins in 6-8 pairs, reticulate veins conspicuously elevated abaxially, base rounded or subcordate, margin serrulate, apex acuminate. Cymes aggregate, 1.5-8 × 3-10 cm, 12-100-flowered; pedicels 1-2 mm. Calyx purple; tube ca. 3 × 3 mm; lobes ovate-deltoid or ovate, 1-1.5 mm, apex acute or acuminate. Petals induplicate, white, ovate-oblong, 3-4.5 mm, margin erose. Outer stamens 2-2.5 mm; filament teeth ± level with anthers; anthers stalked, ovoid. Inner stamens shorter than outer ones; filaments obtuse, erose, or 2-lobed at apex; anthers borne near middle or near apex of filaments abaxially. Styles 3, 2-2.5 mm, subequaling stamens. Capsule unknown.
* Thickets, river banks. W Guizhou (Zhenning Bouyei-Miao Zu Zizhixian).