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 Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
        Count: [*†*] 1o;1f;1g; †3o;14f;38g [4 Mar 2023]
           a Order Equisetales DC. ex Bercht. & J.Presl (1829)
          Count: [*†*] 1f;1g; †9f;22g [4 Mar 2023]
           b Order †Pseudoborniales E.W.Berry (1920) [monotypic]
          Count: [†*] †1f;1g [4 Mar 2023]
           c Order †Sphenophyllales Wettst. (1903) [monotypic]
          Count: [†*] †1f;6g [4 Mar 2023]
           d Order †Cladoxylales W.Zimm. (1930)
          Count: [†*] †3f;9g [4 Mar 2023]