Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
     Subclass Liliidae J.H.Schaffn. (1911) see Order Liliales Perleb (1826)
       Superorder Lilianae Takht. (1967) - monocots
         Order Amaryllidales Link (1829) see Order Asparagales Link (1829)
           Family Agavaceae Dumort. (1829), nom. cons. - Agave family see Subfamily Agavoideae (Dumort.) Herb. (1837)
             Subfamily Yuccoideae see Tribe Yucceae Bartl. (1830)
               Genus Yucca L. (1753)