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. about 400 m a.s.l.
Broad-leaved evergreen secondary closed mt forest on steep granite slopes. Terrestrial and lithophytic herb on wet granite cliff. Flowers bright yellow. Common.
HLF 964 18 April 2003. (Photo)
Coll. V.X.Phuong, L.Averyanov, N.X.Tam, N.T.Vinh. Grant from Henry Luce Foundation.