Northern Vietnam, Lao Cai Prov., Van Ban Distr., Khanh Yen Ha municipality, to the SW of Na Nheo village (in the vicinity of point 21ш58'12''N, 104ш14'02''E). Secondary grassland and evergreen open broad-leaved degraded montane forest with bamboo along granite and quartzite ridge at elev. 1750 m a.s.l. Tree 5-7 m hg. Flowers light pink-violet. Common.