Flora van Nederland Haeckel (1866) - plants
   Division Spermatophyta Goebel (1882) see Phylum Spermatophyta Goebel (1882)
     Subdivision Angiospermae J. Lindley (1830) see Infraphylum Angiospermae auct.
       Class Dicotyledones see Class Magnoliopsida Brongn. (1843)
         Order Gentianales Juss. ex Bercht. & J.Presl (1820)
           Family Gentianaceae Juss. (1789), nom. cons. - gentian family
             Genus Centaurium Hill (1756)
               1 Centaurium pulchellum (Sw.) Druce (1898) - branched centaury
               2 Centaurium erythraea Rafn (1800) - European centaury
               3 Centaurium littorale (Turner) Gilmour (1937) - seaside centaury