Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
   Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
     Subclass Commelinidae Takht. (1967) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820)
       Superorder Pontederianae Takht. ex Reveal (1992) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820)
         Order Pontederiales Hook.f. (1876) see Order Commelinales Mirb. ex Bercht. & J.Presl (1820)
           Family Pontederiaceae Kunth (1816), nom. cons. - water-hyacinth family
             1 Tribe Eichhornieae O.Schwartz (1927)
             2 Tribe Heteranthereae O.Schwartz (1927)
             3 Tribe Pontederieae