ferns: a large genus that in some classification systems has been subdivided into the families: Aspleniaceae; Blechnaceae; Davalliaceae; Dennstaedtiaceae; Dryopteridaceae; Nephrolepidaceae; Oleandraceae; Pteridaceae; Vittariaceae; includes genera Aglaomorpha; Anarthropteris
ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae)
