S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Primary evergreen broad-leaved wet forest on steep mt. slopes on sandstone & gneiss at elev. 1000-1200 m. Terrestrial herb up to 0.5 m hg in wet places. Very common, usual dominant of forb forest stratum.
VH 5085 15.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)