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 Carduus L. (1753)
               1 Carduus tenuiflorus Curtis - Italian thistle
               2 Carduus nutans L. - chardon penche
               3 Carduus crispus L. - curled thistle
               4 Carduus acanthoides L. - plumeless thistle