FLORA OF VIETNAM Orchidaceae Thrixspermum hiepii Aver. et Averyanova (Type)
N.Vietnam, Ha Giang Prov., Quan Ba Distr., Can Ty Municipality, Tia Sung Valley Bat Dai Son Natural Reserve around point 22°05′792N 105° 01′010E. Near primary closed evergreen dry broad-leaved mixed needles forest on steep slopes of remnant or top mountains limestone at elevation 1220 m a.s.l.