viola canina(n = noun.plant) dog violet, heath violet - Old World leafy-stemmed blue-flowered violet;
is a kind of violet

agrostis canina, genus viola, rosa canina, viola, viola arvensis, viola blanda, viola canadensis, viola clef, viola conspersa, viola cornuta, viola d'amore, viola da braccio, viola da gamba, viola ocellata, viola odorata, viola pedata, viola pubescens, viola reichenbachiana, viola rostrata, viola striata, viola sylvatica, viola tricolor, viola tricolor hortensis