Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Plantae Haeckel (1866) - plants
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Infrakingdom Streptophyta Caval.-Sm. (1993)
                               [crown] Clade Phragmoplastophyta Lecointre & Le Guyader 2006 [Hall, McCourt, Delwiche, Mishler & Karol 2020]
                                 [crown] Clade Embryophytaᵀ Engler 1887 [Mishler & Qiu 2020]
                                   Clade Pan-Tracheophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
                                     Clade Apo-Tracheophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
                                       [crown] Phylum Tracheophytaᵀ Sinnott ex Caval.-Sm. (1998) - vascular plants
                                         Clade Pan-Euphyllophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
                                           [crown] Clade Euphyllophytaᵀ Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
                                             Subphylum Polypodiophytinaᵀ Reveal (1996) [monotypic]
                                               Class Polypodiopsidaᵀ Cronquist, Takht. & Zimmerm. (1966) - ferns
                                                 Subclass Equisetidae Warm. (1883)
                                                   Order Equisetalesᵀ DC. ex Bercht. & J.Presl (1829)
                                                     1.1 Family †Autophyllitaceae Nakai (1943) [monotypic]
                                                     1.2 Family †Asterocalamitaceae Hirmer (1927) [monotypic]
                                                     2 Family †Calamostachyaceae S.V.Meyen (1978), nom. cons. prop.
                                                     2.0 [Family †Archaeocalamitaceae Stur] see Family Calamostachyaceae S.V.Meyen (1978), nom. cons. prop.
                                                     2.0 [Family †Calamitaceae Unger (1840)] see Family Calamostachyaceae S.V.Meyen (1978), nom. cons. prop.
                                                     3.1.1 Family †Gondwanostachyaceae S.V.Meyen (1983), nom. cons. prop.
                                                     3.1.2 Family †Tchernoviaceae S.V.Meyen (1983)
                                                     3.1.3 Family †Manchurostachyaceae Grauvogel-Stamm (1978) [monotypic]
                                                     3.1.4 Family †Konnostachyaceae Doweld (2001) [monotypic]
                                                     3.1.4.0 [Family †Neurophyllaceae E.Konno (1941), nom. illeg.] see Family Konnostachyaceae Doweld (2001)
                                                     3.1.5 Family †Notocalamitaceae Rigby (1972) [monotypic]
                                                     3.2 Family †Echinostachyaceae Grauvogel-Stamm (1978), nom. cons. prop. [monotypic]
                                                     3.3 Family Equisetaceaeᵀ Michx. ex DC. (1804) - horsetails