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nounchiefly terrestrial ferns; in some classification systems placed in family Polypodiaceae
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Definition that contains dennstaedtia
- genus pteridium a genus of ferns belonging to the family Dennstaedtiaceae
- polypodiaceae 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)
- pteridium a genus of ferns belonging to the family Dennstaedtiaceae
- family polypodiaceae 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)