S. Vietnam, Dak Lac Prov., Krong Bong Distr., Cu Pui Municipality, elevation from Dak Tour village (12°30′N, 108°30′E) along Dak Tour river on N macroslope of Chu Yang Sinh mt system. Secondary shrubs with bamboo along river slopes at elev. 500-550 m. Very common. Regular codominant of herb stratum in secondary and primary forests in wet places.
VH 5989 03.05.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)