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 Labiatae Juss. (1789), nom. cons. see Family Lamiaceae Martinov (1820), nom. cons.
             Genus Ballota L. (1753)
               Ballota nigra L. - black horehound
                 Ballota nigra subsp. foetida Hayek