S. Vietnam, Prov. Lam Dong, 30 km to NE from Dalat city, distr. Lac Duong, municipalite Da Chay. Primary closed evergreen broadleaved forest on W macroslope of Bi Dup mt system at 1700-1900 m alt. (N 12° 08′, E 108° 39′). Giant herb up to 5 m hg and leaves about 3 m lg in deep wet canyon along stream at 1700 m alt. Flowers and fl. bracts yellow. Not common. VH 3155 24.03.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)