FLORA OF VIETNAM Orchidaceae Spiranthes sinensis (Pers.) Ames
N. Vietnam, prov. Bac Can, distr. Ngan Son, Wind Pass on road Hanoi - Cao Bang (N 22°25′ E 105°55′) at about 700 m elev. Terrestrial herb on wet clay-lateritic soil on shales among limestone rocks in open secondary shrubs and short tall grasslands. Flowers white with pink tint toward sepal tips, sweet fragrant. Common.
CBL 1258 11 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)