FLORA OF VIETNAM Polypodiaceae s.l. Nephrolepis cordifolia (L.) C. Presl
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 and coniferous submontane forest on crystalline marble-like highly eroded limestone, tops of limestone ridge at elev. 700-800 m. Epiphyte. Occasional.