S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Short tall secondary grasslands along forest river at elev. 1100-1200 m. Herb up to 30 cm hg in wet place. Flowers light pink-violet. Not common.
VH 5773 26.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)