[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)
           "Eudicots" see Clade Eudicotyledoneae Donoghue, Doyle & Cantino 2007 [Donoghue, Doyle & Cantino 2020]
             "Core Eudicots" see Clade Gunneridae Soltis, Soltis & Judd 2007 [Soltis, Soltis & Judd 2020]
               Rosidae Takht. (1967) see Superorder Rosanae Takht. (1967)
                 Fabids see Clade Fabidae Judd, Soltis & Soltis 2007 [Judd, Soltis, Soltis & Cantino 2020]
                   Order Malpighiales Juss. ex Bercht. & J.Presl (1820)
                     Family Podostemaceae Rich. ex Kunth (1816), nom. cons. - river-weed family
                       Subfamily Podostemoideae Warm.
                         1 Genus Apinagia L.R. Tulasne (1849)
                         2 Genus Hydrobryum Endl. (1841)
                         3 Genus Ledermanniella Engl. (1909)
                         4 Genus Marathrum Bonpl., in Humb. & Bonpl. (1806)
                         5 Genus Podostemum Michx. (1803)
                         6 Genus Rhyncholacis Tulasne (1849)