living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryotae see Domain Eukaryota Chatton, 1925
     Plantae Haeckel (1866) - plants
       Embryobionta Cronquist, Takht. & W.Zimm.
         Filicophyta see Phylum Pterophyta
           Filicopsida Pfefferkorn (1976) see Class Filicopsida C.Agardh (1822)
             Filicales Dumort. (1829), nom. illeg. see Order Polypodiales Link (1833)
               Blechnaceae Newman (1844) - blechnoids
                 Blechnum L. (1753)
                   Blechnum brasiliense Desv. (1811)