FLORA OF VIETNAM Orchidaceae Paphiopedilum micranthum Tang et F.T.Wang
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.
Terrestrial and lithophytic rosulate herb in shady places along ridge and on high part of mountain slope. Leaves contrastly tessellated above, dark dirty purple below. Common. Extensively collected in the area for sale to Chinese dealers.