Early Saxifrage, a native species, has been added to the USWildflowers database (5/4/2014.)  Scientific name is Micranthes virginiensis. Photo below was taken at the Old Stone Fort State Park in Coffee County, TN, on Apr 2, 2014. Go to the Early Saxifrage detail page for more photos and information.

Early Saxifrage – Micranthes virginiensis