vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
   euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
     monilophytes - ferns see Clade Monilophyta Cantino & Donoghue 2007 [Doyle, Cantino & Donoghue 2020]
       Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966) - ferns
         core leptosporangiates
           Order Cyatheales A.B.Frank (1877) - tree ferns
             Family Cyatheaceae Kaulf. (1827) - scaly tree ferns
               1 Genus Alsophila R.Br.
               2 Genus Cyathea Sm. (1793)
               3 Genus Gymnosphaera Blume (1828) see Genus Alsophila R.Br.
               4 Genus Hymenophyllopsis Goebel (1929) see Genus Cyathea Sm. (1793)
               5 Genus Sphaeropteris Bernh.