Description from Flora of China
Herbs perennial or subshrubs, 10-30 cm tall. Stem richly
branched at base, reddish, glandular hairy and white villous; branches often prostrate on ground in lower part. Leaves subsessile; stipules 2-fid, ca. 3 mm, submembranous, lobes lanceolate, margin laciniate-denticulate; leaf blade papery, oblong to oblong-lanceolate, 1-3 cm, both surfaces subglabrous or abaxially slightly puberulous, base attenuate, decurrent, margin serrulate, apex acute or acuminate. Flowers usually 4 or 5 clustered in leaf axils; pedicel slender, 3-8 mm, puberulous or glandular hairy. Sepals green, narrowly elliptic or lanceolate, ca. 3 mm, apex acute or acuminate. Petals reddish, obovate or elliptic, ca. 2.5 mm, apex acute. Stamens (5 or 7-)10. Ovary ovoid; styles 5; stigmas capitate. Capsule ovoid, 2-2.5 mm, 5-septicidal. Seeds ovoid, minute, reticulate-striate.
Grasslands on mountain slopes, dry fields, roadsides. Guangdong, Guangxi, Hainan, Taiwan [Philippines].