[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]
             Order Ranunculales Juss. ex Bercht. & J.Presl (1820)
               Family Ranunculaceae Juss. (1789), nom. cons. - buttercup family
                 .c Subfamily Coptoideae
                 1 'a' Subfamily Hydrastidoideae Raf.
                 2 'b' Subfamily Glaucidioideae Loconte
                 3.1 'I' Subfamily Helleboroideae see Subfamily Ranunculoideae Arn.
                 3.2 'II e' Subfamily Ranunculoideae Arn.
                 4.1 'III' Subfamily Isopyroideae see Subfamily Thalictroideae Raf. (1815)
                 4.2 'IV d' Subfamily Thalictroideae Raf. (1815)