These wildflowers were photographed on 5/10/15 in a slightly shaded wooded area.
The pink flower is a Wild Geranium (Geranium maculatum), also known as the Spotted Cranesbill.
The yellow flower is Winter Cress (Barbarea vulgaris), commonly known as yellow rocket.
The white flower is Garlic Mustard (Alliaria petiolata).
This is a very helpful site to use to identify wildflowers:
For more information and links about wildflowers and more details on the (very beautiful and delicate) wild geranium, look at: