N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Co Lung Municipality, Khuyn village, around point 20°26′31′'N, 105°14′55′'E. Primary evergreen seasonal broad-leaved submontane forest on slopes of crystalline marble-like highly eroded limestone ridge at elev. 300-400 m. Small shrub-like palm 0.5-1.2 m tall. Occasional.