S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, Bach Ma mt, about 14 km by the road from headquarter to the main peak, around point 16°12′047′'N 107°50′879′'E at elev. about 1000 m a.s.l.
Broad-leaved evergreen secondary closed mt forest on steep granite slopes. Shrub 3-4 m tall on shady steep slope. Occasional.
HLF 972 19 April 2003.
Coll. L.V.Cham, V.V.Can, N.X.Tam et al. Grant from Henry Luce Foundation.