Common Blue Violet:
The common blue violet (left) usually flowers in spring, but occasionally later in the season. Can be found at low to mid elevations in a wide variety of places. The leaves and flowers are attached directly to roots. Violets hybridize freely making them difficult to identify with certainty.
Smooth Yellow Violet:
Smooth Yellow Violet (right) is common in moist, deciduous woods. Height ranges from 4"-12". Look for this violet in March & April at elevations up to 2500'.