FLORA OF VIETNAM Orchidaceae Gastrochilus pseudodistichus (King et Pantl.) Schltr.
Cao Bang Prov., Thong Nong Distr., Yen Son Municipality, Ngan Vai village, around point 22°46′53″N, 105°52′58.7″E.
Primary fractionaly logged coniferous forest with Pseudotsuga sinensis along highly eroded rocky limestone ridge at elevation about 1300 m a.s.l.
Short ascending lithophytic vine to 0.6 m long on mossy rocks along ridge edge. Flowers yellowish, tepals with orange marks, lip epichile white with dull purple marks. Leaves dirty purple spotted. Locally very common.