We have so many different colors violets growing on our back field, I love to keep an eye out and see if I can find another one! We even might have wild dog's tooth violets (Erythronium denscanis?), though they sure look different from the violets I'm familiar with... When paging through a bulb catalog I found their picture and recognized them from the many little flowers growing at the edge of our woods and field. Neat, huh :-)