FLORA OF LAOS Orchidaceae Paphiopedilum concolor (Lindl. ex Bateman) Pfitzer
Xiangkhouang Prov., Peak Distr., Khoang village, Pa Khao mt., around point 19°33′02.2′N 103°39′56.3′E.
Primary and secondary broad-leaved evergreen dry forest on solid rocky highly eroded limestone at elev. 1200-1450 m a.s.l.
Lithophytic rosulate herb on mossy cliffs on middle part of mt. slope. Leaves distinctly tessellated, dark violet spotted below to almost entirely dark purple-violet. Flowers pale yellow with small purple spots. Not common.