life see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukarya Chatton, 1925 see Domain Eukaryota Chatton, 1925
     Kingdom Plantae Haeckel (1866) - plants
       Tracheata see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
         Phylum Filicinophyta see Infraphylum Filices (L.) Cavalier-Sm. (1998)
           Genus Polypodium L. (1753)
             1 Polypodium virginianum L. - rock polypody
             2 Polypodium aureum L.