Kingdom Chlorobiota C.Jeffrey ex Doweld (2001) - plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
Count: [*†*] 10p;24c;72o;262f;1685g; †5p;17c;56o;141f;593g
   Subkingdom Pteridobiotina Britton & A. Br. (1896)
  Count: [*†*] 6p;9c;20o;58f;370g; †2p;12c;42o;103f;488g
     Superdivision Pteridophytanae Doweld (2001) [monotypic] see Superphylum Pteridophytanae Doweld (2001)
    Count: [*†*] 1p;4c;11o;46f;287g; †5o;31f;127g [30 Mar 2023]
       Division Monilophyta Cantino & Donoghue
      Count: [*†*] 4c;11o;46f;287g; †5o;31f;127g [30 Mar 2023]
         Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
        Count: [*†*] 7o;42f;273g; †7f;42g [30 Mar 2023]
           Order Osmundales Bercht. & J.Presl (1820) [monotypic]
          Count: [*†*] 1f;4g; †14g [18 Mar 2023]
             Family Osmundaceae Martinov (1820)
            Count: [*†*] 4g; †14g [18 Mar 2023]
               Genus †Thamnopteris Brongn. (1849)
              Count: -