Shadow Witch Orchid, a native species, has been added to the USWildflowers database (09/20/2013.) Scientific name is Ponthieva racemosa. Photo below was taken in a Cedar Glade at Pigeon Mountain, Walker County, GA, on Sep 17, 2013.  Go to the Shadow Witch Orchid detail page for more photos and information.

Shadow Witch Orchid – Ponthieva racemosa