S. Vietnam, Prov. Lam Dong, 31 km to NE from Dalat city, distr. Lac Duong, municipalite Da Chay, vicinities Klong Lanh village (N 12° 08′, E 108° 39′). Secondary shrub communitys on open dry slopes on NW macroslope of Bi Dup mt system at 1450-1500 m alt. Terrestrial fern up to 1.5 m hg. Very common. Often monodominante on dry open slopes and in forb stratum of coniferous forests at 1450-1650 m alt. VH 2740 16.03.1997 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