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 wet closed mountain broad-leaved and mixed forest on granites along very steep shady slopes of river at elev. 1700 m. Creeping Lithophytic fern on open mossy wet waterfall shelves. Common.
VH 6431 11.05.2000 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)