[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Domain Bacteria Woese et al. 1990 stat. inval. see Domain Bacteria Woese et al. 2024
     Phylum "Proteobacteria" Garrity et al. 2005 stat. inval. see Phylum Pseudomonadota Garrity et al. 2021
       Class Gammaproteobacteria Garrity et al. 2005
         Order Pseudomonadales Orla-Jensen 1921 (Approved Lists 1980)
           Family Pseudomonadaceae Winslow et al. 1917 (Approved Lists 1980)
             Genus Pseudomonas Migula 1894 nom. cons. (Approved Lists 1980)
               Pseudomonas cichorii (Swingle 1925) Stapp 1928 (Approved Lists 1980)