Orchidaceae Son La Prov., Quynh Nhai Distr., Muong Chien Comm., He Vill., Pa Ma Mt., 600-900 m, around point 21050′10” N, 103035′52” E), about 2 km to E of Quynh Nhai FPD Station (around point 21050′10” N, 103034′12” E, 203 m), medium part of slope of limestone mountains.
In heavily logged primary closed evergreen broad-leaved submontane forests and scrubs suffered from fire.
Scattered. Terrestrial. Leaves dark violet, 3-nerved.
HAL 11305 03 Dec 2007 Coll.: P.K. Loc & N.T. Vinh
Grant from MOST, Council for Natural Science, Section of Life Sciences (6.077.06), Vietnam