S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, dry open secondary shrubs on laterite hills near national park headquarter around point 16°15′01′'N 107°52′25′'E at elev. about 50 m a.s.l.
Shrub1.5-2 m tall. Flowers salmon-red. Naturalized ?
HLF 1186 20 April 2003.
Coll. Vu Xuan Phuong. Grant from Henry Luce Foundation.