[plants] Haeckel (1866) - plants
   vascular plants see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
     euphyllophytes see Clade Euphyllophyta Lecointre & Le Guyader 2006 [Cantino & Donoghue 2020]
       Spermatophyta Britton & Brown 1896 [Crane & Kenrick 1997], nom. cl. inval. - seed plants see Clade Spermatophyta Britton & Brown 1896 [Cantino, Doyle & Donoghue 2020]
         Class Magnoliopsida Brongn. (1843)
           Monocotyledons see Superorder Lilianae Takht. (1967)
             Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
               Family Alismataceae Vent. (1799), nom. cons. - water-plantain family
                 1.1 Genus Alisma L. (1753)
                 1.2 Genus Caldesia Parlatore (1860)
                 2 Genus Burnatia M. Micheli, in A.DC. & A.C. de Candolle (1881)
                 3.1 Genus Echinodorus Rich. ex Engelm. (1848)
                 3.2 Genus Ranalisma Stapf (1900)
                 4.1 Genus Limnocharis Bonpl., in Humb. & Bonpl. (1807)
                 4.2 Genus Butomopsis Kunth (1841)
                 4.3 Genus Hydrocleys Rich. (1815)
                 5 Genus Sagittaria L. (1753)
                 6 Genus Wiesneria Micheli, in A.DC. & A.C. de Candolle (1881)