S. Vietnam, Prov. Lam Dong, 14 km to NNW from Dalat city (N 12° 05′, E 108° 22′). Submontane old open secondary mixed forest with domination of Pinus kesiya at 1740-1760 m alt. Herb up to 1 m hg, in wet open place along stream. Flowers whitish. Not common. VH 2489 11.03.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)
Collectors: L. Averyanov, N.Q. Binh, N.V. Duy, P.K. Loc