Vietnam, Thua Thien – Hue Prov., A Luoi Distr., Hong Kim Municipality, Dut village, about 3 km to NE from point 16°17′54′'N, 107°12′41′'E near A Nor waterfall at elevation about 700-800 m a.s.l.
Secondary open shrubs on open rocky slopes of A Nor stream composed with shale and granite.
Terrestrial herb on short tall secondary grassland. Flowers white. Very common.