Polypodiophytina

== Translingual == === Etymology === Polypodium +‎ -phytina === Proper noun === Polypodiophytina A taxonomic subphylum within the phylum Tracheophyta – true ferns, other ferns, and horsetails. ==== Synonyms ==== (subphylum): Pteridophyta ==== Hypernyms ==== (subphylum): Eukaryota – superkingdom; Plantae – kingdom; Viridiplantae – subkingdom; Streptophyta – infrakingdom; Embryophyta – superphylum; Tracheophyta – phylum ==== Hyponyms ==== (subphylum): Polypodiopsida – sole class ==== Coordinate terms ==== (subphylum): Lycopodiophytina, Spermatophytina (seed plants) === References === Polypodiopsida on Wikipedia.Wikipedia Polypodiophytina on Wikispecies.Wikispecies Category:Polypodiopsida on Wikimedia Commons.Wikimedia Commons Polypodiidae at National Center for Biotechnology Information “Polypodiophytina”, in Paleobiology Database, 2026