Description from Flora of China
Herbs pubescent, 6--18 cm tall. Stems erect, simple or slightly branched. Petiole of basal leaves 1--2 cm; leaf blade elliptic to broadly ovate, 0.8--2.5 X 0.7--1.5 cm, base rounded to cordulate, margin irregularly dentate, apex obtuse. Lowest stem leaves to 1.5 cm, gradually reduced upward, becoming bractlike. Stem leaves ovate to suborbicular, margin dentate. Pedicel 2--8 mm. Flowers in axils of bractlike leaves, appearing as a raceme. Calyx ca. 2 mm; apex of lobes obtuse or acute. Corolla white or pink; tube ca. 2.5 mm, pubescent around throat; lobes cuneate-obovate, slightly shorter than tube, apex emarginate. Anthers subovoid, ca. 0.3 mm. Style ca. 0.6 mm. Capsule ca. 2.5 mm in diam., shorter than persistent calyx. Fl. Apr-May.
Grassy areas, roadsides, woodland margins on low hills, woodlands on mountain slopes; 100--1000 m. Anhui, Fujian, Guangdong, Guangxi, Hunan, Jiangsu, Jiangxi, Taiwan, Zhejiang [Japan].