FLORA OF LAOS Orchidaceae Paphiopedilum concolor (Lindl. ex Bateman) Pfitzer
Luang Prabang prov., Ngoy distr., Nong Khiew village, Pha Deng Mountain around point 20°34′14.3′'N 102°37′31.8′'E.
Secondary semideciduous and evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 700-825 m a.s.l.
Lithophytic rosulate herb in mossy rocky crevices in shady places on rocky mountain top. Flowers light yellowish to almost white with many small purple marks. Leaves distinctly contrasty tessellated. Locally common.