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 with leaves up to 2 m hg in wet shady slope. Locally common.
VH 5384 19.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)