Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
     Subclass Alismatidae Takht. (1967) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
       Superorder Alismatanae Takht. (1967) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
         Order Aponogetonales Hutch. (1934) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
           Family Aponogetonaceae Planch. (1856), nom. cons. - Cape-pondweed family
             1 Genus Aponogeton L.f. (1782), nom. cons.