S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14ø39'N, 108ø25'E). Primary broad-leaved closed evergreen wet mountain forest on sandstone steep slopes of forest river at elev. 1100-1200 m. Lithophytic herb on wet mossy rocks along forest river. Common.
No VH 5598 23.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)