FLORA OF VIETNAM Orchidaceae Juss. Pelantheria insectifera (Rchb.f.) Ridl.
N. Vietnam, Thanh Hoa prov., Ba Thuoc distr., Co Lung municipality, territory of Pu Luong protected area, near Co Lung village, Nui Doan (Pha Doan) mountain system (20°26′30′'N, 105°11′32′'E). Primary evergreen broad-leaved dry forest along tops of remnant highly eroded karst limestone ridge at elev. 500-550 m a.s.l. Lithophyte on vertical cliffs. Occasional.