[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Actinobacteria" Garrity and Holt 2001
       Class "Actinobacteria" Stackebrandt et al. 1997
         Subclass Actinobacteridae Stackebrandt et al. 1997 see Class Actinobacteria Stackebrandt et al. 1997
           Order Actinomycetales Buchanan 1917 (Approved Lists 1980)
             Suborder Corynebacterineae Stackebrandt et al. 1997
               Family Corynebacteriaceae Lehmann and Neumann 1907 (Approved Lists 1980)
                 Genus Corynebacterium Lehmann and Neumann 1896 (Approved Lists 1980)
                   [Corynebacterium flaccumfaciens] (Hedges 1922) Dowson 1942 (Approved Lists 1980) see Curtobacterium flaccumfaciens (Hedges 1922) Collins and Jones 1984
                     1 Corynebacterium flaccumfaciens subsp. betae (Keyworth et al. 1956) Carlson and Vidaver 1982 see Curtobacterium flaccumfaciens (Hedges 1922) Collins and Jones 1984
                     2 Corynebacterium flaccumfaciens subsp. oortii (Saaltink and Maas Geesteranus 1969) Carlson and Vidaver 1982 see Curtobacterium flaccumfaciens (Hedges 1922) Collins and Jones 1984
                     3 Corynebacterium flaccumfaciens subsp. poinsettiae (Starr and Pirone 1942) Carlson and Vidaver 1982 see Curtobacterium flaccumfaciens (Hedges 1922) Collins and Jones 1984