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 Calendula L. (1753)
               1 Calendula arvensis L. - field marigold
               2 Calendula officinalis L. - pot marigold