Flora van Nederland Haeckel (1866) - plants
   Division Spermatophyta Goebel (1882) see Phylum Spermatophyta Goebel (1882)
     Subdivision Angiospermae J. Lindley (1830) see Infraphylum Angiospermae auct.
       Class Monocotyledones see Class Liliopsida Batsch (1802)
         Order Helobiae
           Family Hydrocharitaceae Juss. (1789), nom. cons. - tape-grass family
             Genus Elodea Michx. (1803)
               Elodea canadensis Michx.