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 Centrospermae
           Family Caryophyllaceae Juss. (1789), nom. cons. - pink family
             Genus Scleranthus L. (1753)
               Scleranthus annuus L. - German knotgrass