FLORA OF VIETNAM Plants of Phong Nha - Ke Bang National Park Orchidaceae Nephelaphyllum tenuiflorum Blume Vietnam, Quang Binh Prov., Quang Ninh Distr., Truong Son Municipality, around point 17°26′50′'N, 106°23′41′'E at elev. about 600 m a.s.l. near U Bo forestry protection station.
Slightly logged primary closed broad-leaved evergreen forest on steep slopes of mountains composed with shale and sandstone along stream canyon.
Creeping terrestrial and lithophytic herb in shady rocky slope. Leaves brightly green with deep green spots, dull green with violet tint below. Rare.