Acanthaceae Juss. ? S. Vietnam, Prov. Kontum. Open dry mixed evegreen forest (with Pinus kesiya) at 900 m alt. on W slope of Ngoc Linh mountain system abowe Muong Hoong village. Small shrub up to 0.4 m lg. Flowers light violet. Common. VH 1373 14.04.1995 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev