Dwarf Cinquefoil [Potentilla canadensis] found in the Vining yard on 21 April 2013. It looks similar to an Indian Strawberry, but this Cinquefoil has 5 leaves; both are members of the Rose (Rosaceae) family. Wildflowers of the Carolinas, pages 330-331, says the the Dwarf is also similar to the Common Cinquefoil [Potentilla simplex], but has smaller leaves.
USDA Plants Listing: https://plants.usda.gov/home/plantProfile?symbol=POCA17