Wood Anemone, a native species, has been added to the USWildflowers database (04/24/2013.) Scientific name is Anemone quinquefolia. Photo below was taken near the Cosby Campground in the Great Smoky Mountains National Park in Cocke County, TN on Apr 7, 2013.   Go to the Wood Anemone detail page for more photos and information.

Wood Anemone, Nightcaps, Twoleaf Anemone – Anemone quinquefolia