[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Plantae Haeckel (1866) - plants
     Division Tracheophyta see Phylum Tracheophyta Sinnott ex Caval.-Sm. (1998)
       Subdivision Spermatophytina see Subphylum Spermatophytina Caval.-Sm. (1998)
         Class Angiospermae Lindl. (1830) see Subdivision Angiospermae J. Lindley (1830)
           Subclass Monocotyledonae
             Superorder Alismatidae
               Order Najadales Bercht. & J.Presl (1820) see Order Alismatales R.Br. ex Bercht. & J.Presl (1820)
                 01 Family Aponogetonaceae Planch. (1856), nom. cons. - Cape-pondweed family
                 02 Family Scheuchzeriaceae F.Rudolphi (1830), nom. cons.
                 03 Family Juncaginaceae Rich. (1808), nom. cons. - arrow-grass family
                 04 Family Lilaeaceae Dumort. (1829) see Family Juncaginaceae Rich. (1808), nom. cons.
                 05 Family Najadaceae Juss. (1789), nom. cons. - water-nymph family see Subfamily Hydrilloideae
                 06 Family Potamogetonaceae Bercht. & J.Presl (1823), nom. cons. - pondweed family
                 07 Family Ruppiaceae Horan. (1834), nom. cons. - ditch-grass family
                 08 Family Posidoniaceae Vines (1895), nom. cons.
                 09 Family Zannichelliaceae Chevall. (1827), nom. cons. - horned pondweed family see Family Potamogetonaceae Bercht. & J.Presl (1823), nom. cons.
                 10 Family Cymodoceaceae Vines (1895), nom. cons. - Cymodocea family
                 11 Family Zosteraceae Dumort. (1829), nom. cons.