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. Terrestrial herb with inflorescence up to 1 m hg. Stalk gray-light-green with white spots, spathe light-green with white spot. Not common.