Definition that contains family polypodiaceae
- asplenium in some classification systems placed in family Polypodiaceae
- genus phyllitis a genus of ferns belonging to the family Polypodiaceae (in some classification systems included in genus Asplenium)
- genus cheilanthes small evergreen ferns: lipferns; in some classifications placed in family Polypodiaceae or Adiantaceae
- genus adiantum cosmopolitan genus of ferns: maidenhair ferns; in some classification systems placed in family Polypodiaceae or Adiantaceae
- woodwardia in some classification systems placed in family Polypodiaceae: chain ferns
- family athyriaceae alternative names for one of a number of families into which the family Polypodiaceae has been subdivided in some classification systems
- doodia in some classification systems placed in family Polypodiaceae; small terrestrial colony-forming ferns of Australasia
- genus scolopendrium a genus of ferns belonging to the family Polypodiaceae (in some classification systems included in genus Asplenium)
- athyrium temperate and tropical lady ferns; in some classifications placed in family Polypodiaceae or in the genus Asplenium
- parkeriaceae coextensive with the genus Ceratopteris; sometimes included in family Polypodiaceae