FLORA OF LAOS Orchidaceae Calanthe triplicata (Willemet) Ames?
Luang Prabang prov., Ngoy distr., Ngoy village, Pha Noi Mountain, around point 20°42′53.6′'N 102°40′34.7′'E.
Remnants of primary evergreen forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 400-450 m a.s.l.
Lithophytic herb on shady very steep rocky slope. Not common.