S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, Bach Ma mt, Hai Vong Dai peak, around point 16°11′46′'N 107°51′45′'E at elev. 1300-1350 m a.s.l.
Mixed and broad-leaved evergreen primary closed mt forest on steep granite slopes. Terrestrial herb on very steep open wet slope along road. Flowers light pink, anthers yellow. Occasional.
HLF 958 18 April 2003. (Photo)
Coll. V.X.Phuong, L.Averyanov, N.X.Tam, N.T.Vinh. Grant from Henry Luce Foundation.