[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990
     Phylum "Proteobacteria" Garrity et al. 2005 see Superphylum Proteobacteria Craig et al. 2010
       Class Gammaproteobacteria Garrity et al. 2005
         Order "Enterobacteriales" Garrity and Holt 2001 nom. nud.
           Family Enterobacteriaceae Rahn 1937 (Approved Lists 1980)
             Genus Pectobacterium Waldee 1945 (Approved Lists 1980)
               1 [Pectobacterium carotovorum] (Jones 1901) Waldee 1945 (Approved Lists 1980)
               2 Pectobacterium atrosepticum (van Hall 1902) Gardan et al. 2003
               3 Pectobacterium betavasculorum (Thomson et al. 1984) Gardan et al. 2003
               4 Pectobacterium cacticida corrig. (Alcorn et al. 1991) Hauben et al. 1999
               5 Pectobacterium cypripedii (Hori 1911) Brenner et al. 1973 (Approved Lists 1980) see Pantoea cypripedii (Hori 1911) Brady et al. 2010
               6 Pectobacterium wasabiae (Goto and Matsumoto 1987) Gardan et al. 2003