S. Vietnam, Dak Lac Prov., Krong Bong Distr., Cu Pui Municipality, elevation from Dak Tour village (12°30′N, 108°30′E) to main peak of Chu Yang Sinh mt system (12°24′N, 108°26′E) along Dak Tour river (N slope). Primary closed wet broad-leaved forest on steep granite slopes at elev. 1300 m. Terrestrial fern on steep shady slope. Not common.
VH 6291 07.05.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)