Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Domain Bacteria Woese et al. 1990 [paraphyletic?]
             Superphylum "Proteobacteria" Craig et al. 2010
               Phylum "Alphaproteobacteria" Garrity et al., 2006 [monotypic]
                 Class Alphaproteobacteriaᵀ Garrity et al. 2006
                   Order Rhizobiales Kuykendall 2006
                     Family Rhizobiaceaeᵀ Conn 1938 (Approved Lists 1980)
                       Genus Kaistia Im et al. 2005
                         1 Kaistia adipataᵀ Im et al. 2005
                         2 Kaistia dalseonensis Jin et al. 2011
                         3 Kaistia defluvii Jin et al. 2012
                         4 Kaistia geumhonensis Jin et al. 2011
                         5 Kaistia granuli Lee et al. 2007
                         6 Kaistia soli Weon et al. 2008
                         7 Kaistia terrae Kim et al. 2010