Vietnam, Dac Lac Prov., Buon Don Distr., Krong Na municipality, Yok Don national park, around point 13º04’13”N 107º37’57”E. Open dry semi-deciduous Dipterocarpus forest and woodlands on thin ferralite gray to brown rocky soils at elevation about 200 m a.s.l. Epiphyte on tall tree. Not rare.