Monographs Details: Polypodium polypodioides var. michauxianum Weath.
Authority: Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Description:Distribution and Ecology - Distribution. Mexico (Coah, SLP, Tam, Chis); se US; Guat. Since it occurs both to the north and south of Oaxaca, this variety is to be watched for. For distinctions, see var. aciculare.

Discussion: Type. United States. Virginia: Nan-semond Co., Kilby, Fernald, Long & Fogg 4703 (G H).
Distribution:Mexico North America| Guatemala Central America| United States of America North America|