Vietnam, Ha Giang Prov., Bac Me Distr., Phieng Luong Municipality, about 1.5 km to NE of Phieng Luong Municipality headquarter (22°39′29″N, 105°19′35″E).
Secondary open shrubs along road on steep slopes at the base of ridges composed with solid highly eroded crystalline limestone and shale at elev. about 800-850 m a.s.l.
Terrestrial herb on secondary short tall grassland. Flowers yellow. Very common.