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
             Tribe Heteranthereae O.Schwartz (1927)
               1 Genus Monochoria C.Presl (1827)
               2 Genus Scholleropsis H. Perrier de la Bathie (1936)
               3 Genus Heteranthera Ruiz & Pav. (1794), nom. cons.
               4 Genus Hydrothrix Hook.f. (1887)