Pretty flower

The "lawn" here isn't like most folk's; instead of a solid homogeneous mass of grass, it's more of a random jumble of grass, crab grass, clover, wildflowers and assorted weeds.  It's green, from a distance, but up close it can be both ugly and beautiful at the same time.

Right now, there are all kinds of flowers popping up.  Plenty of dandelions, but lots of other pretty flowers as well.  I've already posted pictures of the Speedwell, so here's a couple other flowers that are appearing all over the lawn.


I believe this is Shepherd's Purse.  These flowers are really tiny, only millimeters across.


I'm pretty sure this is a member of the genus Viola, but I'm not entirely certain of the species.  I think it's Prairie Violet.