[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]
               Asteridae Takht. (1967) see Superorder Asteranae Takht. (1967)
                 Order Cornales Link (1829)
                   Family Hydrangeaceae Dumort. (1829), nom. cons. - Hydrangea family
                     Subfamily Hydrangeoideae (Dumort.) Burnett (1835)
                       Tribe Hydrangeae DC. (1830) see Tribe Hydrangeeae DC. (1830), nom. corr.
                         1 Genus Broussaisia Gaudich., in Freycinet (1830)
                         2 Genus Cardiandra Siebold & Zucc. (1839)
                         3 Genus Decumaria L. (1763)
                         4 Genus Dichroa Loureiro (1790)
                         5 Genus Hydrangea Gronov. (1753)
                         6 Genus Platycrater Siebold & Zucc. (1838)
                         7.1 Genus Schizophragma Siebold & Zucc. (1838)
                         7.2 Genus Pileostegia Hook.f. & T. Thomson (1857)