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 Violales Perleb (1826) see Order Malpighiales Juss. ex Bercht. & J.Presl (1820)
           Family Violaceae Batsch (1802), nom. cons. - violet family
             Genus Viola L. (1753)
               [Viola canina × persicifolia]
               01 Viola arvensis Murray (1770) - European field pansy
               02 Viola arvensis × tricolor
               03 Viola tricolor L. - johnny jumpup
               04 Viola calaminaria (DC.) Lejeune
               05 Viola curtisii E.Forst. (1831)
               06 Viola palustris L. - marsh violet
               07 Viola odorata L. - sweet violet
               08 Viola hirta × odorata
               09 Viola hirta L.
               10 Viola canina L. - heath dog violet
               11 Viola persicifolia Schreber
               12 Viola rupestris F.W.Schmidt
               13 Viola reichenbachiana Boreau
               14 Viola reichenbachiana × riviniana
               15 Viola riviniana Rchb. (1823)
               16 Viola canina × riviniana