plants Haeckel (1866) - plants
   Division Charophyta Migula (1889) - charophyte algae and embryophytes see charophytes
     Subdivision [Streptophytina] see [unranked] Streptophytina Lewis & McCourt (2004)
       Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
         Vascular Plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
           [Ferns]
             Subclass Polypodiidae Cronquist, Takht. & Zimmerm. (1966)
               Order Cyatheales A.B.Frank (1877) - tree ferns
                 1 Family Thyrsopteridaceae C.Presl
                 2 Family Loxsomataceae C.Presl (1847)
                 3 Family Culcitaceae Pic.Serm.
                 4 Family Plagiogyriaceae Bower (1926)
                 5 Family Cibotiaceae Korall (2006)
                 6 Family Cyatheaceae Kaulf. (1827) - scaly tree ferns
                 7 Family Dicksoniaceae M.R.Schomb. (1848), nom. cons. - dicksonioids
                 8 Family Metaxyaceae Pic.Serm. (1970)