Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996) see Infraphylum Angiospermae auct.
Count: [f] 2c;232o;592f;6085g;41s; †1g
   Class Liliopsida Batsch (1802) see Class Magnoliopsida Brongn. (1843)
  Count: -
     Subclass Alismatidae Takht. (1967) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
    Count: [g] 10o;18f;61g
       Superorder Alismatanae Takht. (1967) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
      Count: [g] 10o;18f;61g
         Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
        Count: [g] 2f;16g
           Family Alismataceae Vent. (1799), nom. cons. - water-plantain family
          Count: [g] 13g
             Genus Helanthium
            Count: -