FLORA OF LAOS Orchidaceae Vandopsis gigantea (Lindl.) Pfitzer
Kham Mouan Prov., Bounlapha Distr., Thong Sam village, Hinnam No Protected Area, Pu Pha Song Mt. composed by sandstone, around point 17°35′13.2”N 105°47′49.8”E.
Primary evergreen broad-leaved and mixed forest on W macroslope at elevation from 500 m to the mountain top elevated to 1425 m.
Lithophyte on big exposed boulders at elevation 500-700 m. Flowers yellowish with orange spots. Locally very common.