S. Vietnam, Prov. Kon Tum, Distr. Dak Gley, about 7 km to S of Dak Gley town, near Dak Pet willage. On wet sandy places along Dak Poko river at 600-650 m alt. Common prostrate herb. Common weed of wet places.
VH 1539 12.11.1995
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