The genus Adiantum has few northern members but includes over a hundred tropical and subtropical species. Our chief northern representative, A. pedatum, ranges from Georgia to Nova Scotia, westward to the Pacific and north to Alaska. The other common temperate species, A. capillus-veneris, widespread in tropical and subtropical areas, is found chiefly in the southern part of the United States with limited northward extensions. While these two species overlap somewhat in their major distribution they belong to different geographical areas, but are similarly influenced by local conditions of substrate and habitat.
Proceedings of the Iowa Academy of Science
©1948 Iowa Academy of Science, Inc.
Wylie, Robert B.
"The Leaf Organization of Adiantum capillusveneris L. in Comparison With That of Adiantum pedatum L.,"
Proceedings of the Iowa Academy of Science, 55(1), 223-231.
Available at: https://scholarworks.uni.edu/pias/vol55/iss1/29