S. Vietnam, Prov. Kon Tum, Distr. Dak Gley, about 3-4 km to the W of Dak Gley town. Secondary dry forest with bamboos rich in primary elements at 650-800. Prostrate herb up to 0.6 m high. Flowers white, center dark violet-purple. In wet places, rare.
VH 2016 26.11.1995
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, G. Yakovlev