Xiangkhouang Prov., Peak Distr., Oran village, around point 19°38′53”N 103°23′12”E.
Primary and secondary broad-leaved evergreen dry forest on shale sandstone slopes and along ridge edge at elev. about 1750-1850 m a.s.l.
Terrestrial prostrate herb on short tall open grassland among rather open secondary scrub, in little wet places. Flowers light greenish. Locally common. Particularly on wet pastures around villages.