S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Primary broad-leaved wet evergreen forest on sandstone at elev. 1100-1200 m. Terrestrial herb up to 0.5 m hg on steep shady wet slope along forest stream. Very common.
VH 5393 19.04.2000 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)