Butterweed, a native species, has been added to the USWildflowers database (04/06/2012.) Scientific name is Packera glabella. Photo below was taken in Walker County, GA, on April 2, 2012. Go to the Butterweed detail page for more information.
Butterweed, Yellowtop, Cressleaf Groundsel, Floodplain Ragwort – Packera glabella