Viola tricolor is a common European wild flower, growing as an annual
   or short-lived perennial. The species is also known as wild pansy,
   Johnny Jump up (though this name is also applied to similar species
   such as the yellow pansy), heartsease, heart's ease, heart's delight,
   tickle-my-fancy, Jack-jump-up-and-kiss-me, come-and-cuddle-me, three
   faces in a hood, love-in-idleness, and pink of my john.
   It has been introduced into North America, where it has spread. It is
   the progenitor of the cultivated pansy, and is therefore sometimes
   called wild pansy; before the cultivated pansies were developed,
   "pansy" was an alternative name for the wild form. It can produce up to
   50 seeds at a time. The flowers can be purple, blue, yellow or white.
   [1]https://en.m.wikipedia.org/wiki/Viola_tricolor

References

   1. https://en.m.wikipedia.org/wiki/Viola_tricolor