FLORA OF VIETNAM Orchidaceae Tainia angustifolia (Lindl.) Benth. Et Hook.f.
N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18°34′06′'N, 105°11′40′'E. Primary broad-leaved evergreen forest on steep mt slopes composed with granite along Khe Van stream at elev 350-450 m a.s.l.
Terrestrial herb on very steep rocky stream slope. Flowers: tepals light brown-yellow, lip white with fine purple-violet marks. Not common.