living organisms
 see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
  
 Superkingdom Eukaryotae
 see Domain Eukaryota Chatton, 1925
    
 Kingdom Plantae Haeckel (1866) - plants
      
 Subkingdom Embryobionta Cronquist, Takht. & W.Zimm.
        
 Division Magnoliophyta Cronquist, Takht. & Zimmerm. (1966)
 see Phylum Magnoliophyta Cronquist, Takht. & Zimmerm. ex Reveal (1996)
          
 Class Magnoliopsida Brongn. (1843)
            
 Subclass Magnoliidae Novák ex Takht. (1967) - angiosperms
              
 Order Piperales Bercht. & J.Presl (1820)
                
 Family Saururaceae F.Voigt (1811), nom. cons. - lizard's-tail family
                  
 Genus Circaeocarpus C.Y. Wu (1957)
 see Genus Zippelia Blume ex Schult. & J.H. Schultes, in Roem. & Schult. (1830)