FLORA OF VIETNAM Orchidaceae Pholidota articulata Lindl.
Son La Prov., Van Ho Distr., Xuan Nha Municipality, Muong An village, territory of Xuan Nha natural reserve.
Remnants of primary and secondary broad-leaved evergreen dry forest on cliffs and on very steep slopes of remnant hill composed by highly eroded limestone at elevation 900-1000 m a.s.l. around point 20°44′50.1″N 104°47′54.5″E.
Lithophytic and epiphytic creeping and climbing herb on mossy shady rocky slopes and cliffs near mountain top. Stem quadrate in cross section. Common.