Shrubs ca. 1 m tall. Flowering branchlets red-brown, 4-6 cm, ca. 4-leaved, stellate hairy. Petiole 2-4 mm; leaf blade abaxially greenish, oblong or ovate-oblong, rarely lanceolate, 4-7 × 1.5-3 cm, membranous, abaxially 5-or 6(or 7)-rayed stellate hairy, adaxially 4-or 5-rayed stellate hairy, base broadly truncate or subrounded, margin serrulate, apex acute. Inflorescences cymose, 5-10-flowered, stellate hairy; pedicels slender, 1-2 cm. Calyx tube ca. 4.5 × 4 mm; lobes purple, ovate. Petals imbricate, pink, obovate, 5-10 × 7-8 mm. Outer stamens ca. 7 mm; filaments 2-dentate at apex; anthers borne between filament teeth, shortly stalked. Inner stamens shorter than outer ones; filaments rounded or emarginate at apex; inner anthers borne at middle of filaments abaxially. Styles 3, subequaling stamens. Capsule 4-5 mm in diam. Fl. Apr-Jul, fr. Aug-Oct.