Ephemerals to 20(--30) cm tall. Stems erect, simple or few-branched from base. Leaves in a basal rosette or separated by internodes longer than leaves except for uppermost 2 pairs which form a whorl of 4 leaves; leaf blade ovate to oblong, less often linear-lanceolate, hirsute at least when young. Corolla 3--6 mm. Fl. Jun-Jul, fr. Aug-Dec.

Grassy open places; 200--600 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hunan, Jiangsu, Jiangxi, Taiwan, Yunnan, Zhejiang [Cambodia, India, Indonesia, Japan, Korea, Malaysia, Myanmar, Nepal, Philippines, Thailand, Vietnam; Australia].