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. Shrub 2-3 m hg along road. Flowers violet. Very common. Usual dominant of secondary shrub communities.
VH 5380 19.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)