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 Tubiflorae
           Family Boraginaceae Juss. (1789), nom. cons. - borage family
             Genus Cynoglossum L. (1753)
               Cynoglossum officinale L. - common houndstongue