Yellow violets

There are several varieties of yellow violets. I think I have correctly identified this one as Downey Yellow Violet (Viola pubescens). This native variety has heart shaped leaves, dark center lines and is found in dry woodlands.
Habitat Home also has many blue violets blooming in the front flower beds. Violets of all colors attract fritillary butterflies that lay their eggs on or near the violets, which later serve as caterpillar food. Birds will eat the violet seeds and rabbits like to eat the leaves. So please do not spray or remove the violets, they are an important wildlife food source. Also, violets that are not subjected to herbicides or pesticides can be eaten in salads or sugared for desserts.