伞房花耳草(原变种) san fang hua er cao (yuan bian zhong)

Oldenlandia corymbosa Linnaeus, Sp. Pl. 1: 119. 1753; Pharaceum incanum Loureiro.

Stems quadrangular, glabrous to pubescent and/or scaberulous along angles. Fl. and fr. almost year-round.

Paddy fields, ridges of farmlands, humid grasslands. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Sichuan, Zhejiang [Africa, America, tropical Asia].