The genus Geranium has over 420 plant species, also known as Cranesbill or Hardy Geranium. This pretty little specimen is in my side garden however Cranesbill grows wild in the woods all over North America.
Every year I allow most of whatever grows in one of my gardens to just grow (I have taken out poison ivy and seriously invasive weeds). I've planted a few things here as well as sown seeds. It is a shady spot I call my wildflower "garden." Generally a lot of the same things come up like these Dames Rockets and the self sowing Forget Me Nots out of focus in the background.