Class Equisetopsida C.Agardh (1825) - horsetails see Subclass Equisetidae Warm. (1883)
   gymnosperms see Class Spermatopsida
     Subclass Pinidae Cronquist, Takht. & Zimmerm. (1966) - conifers
       Order Cupressales Link (1829)
         Family Taxaceae Gray (1822), nom. cons. - yew family
           1 Genus Austrotaxus Compton (1922)
           2 Genus Pseudotaxus W.C.Cheng (1948)
           3 Genus Taxus L. (1753)
           4 Genus Cephalotaxus Siebold & Zucc. ex Endl. (1842)
           5 Genus Amentotaxus Pilg. (1916)
           6 Genus Torreya Arn. (1838), nom. cons.