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 Campanulales Juss. ex Bercht. & J.Presl (1820) see Order Asterales Link (1829)
           Family Compositae Giseke (1792), nom. cons.
             Genus Centaurea L. (1753)
               1 Centaurea calcitrapa L. - purple starthistle
               2 Centaurea solstitialis L. - yellow star thistle
               3 Centaurea jacea L. - brown knapweed
               4 Centaurea scabiosa L. - greater knapweed
               5 Centaurea cyanus L. - bachelor's button
               6 Centaurea montana L. - perennial cornflower