S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Herb up to 5 m hg in open wet place along river at elev. 700-800 m. Flowers white, central tepal yellow with red stripe. Very common.
VH 5780 27 04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)