S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 35 km to NE from Dalat city. Closed primary broadleaved evergreen mt forest on W macroslope of Gia Rinh mt. ridge at 1600 m alt. (N 12° 09′, E 108° 41′). Terrestrial herb up to 1.2 m hg. Flowers white, central tepal with yellow center and purple stripes on sidelobes. VH 4552 04.05.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)
Collectors: L. Averyanov, N.Q. Binh, N.T. Hiep, P.K. Loc, P. Lowry