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 Spathiflorae
           Family Lemnaceae Martinov (1820), nom. cons. - duckweed family see Subfamily Lemnoideae Babington (1843)
             Genus Spirodela Schleid. (1839)
               Spirodela polyrhiza (L.) Schleiden - giant duckweed