Angiosperms - flowering plants see Subclass Magnoliidae Novák ex Takht. (1967)
   Mesangiosperms see Clade Mesangiospermae Donoghue, Doyle & Cantino 2007 [Donoghue, Doyle & Cantino 2020]
     Magnoliids see Clade Magnoliidae Takhtajan 1967 [Judd, Soltis & Soltis 2020]
       Order Piperales Bercht. & J.Presl (1820)
         10 Family Saururaceae F.Voigt (1811), nom. cons. - lizard's-tail family
         11 Family Piperaceae Giseke (1792), nom. cons. - pepper family
         12 Family Aristolochiaceae Juss. (1789), nom. cons. - birthwort family