Pinnate Prairie Coneflower, a native species, has been added to the USWildflowers database (09/24/2012.) Scientific name is Ratibida pinnata.  Photo below was taken near the Boundary Waters Canoe Area Wilderness in St. Louis County, MN on Sep 9, 2012. Go to the Pinnate Prairie Coneflower detail page for more photos and information.

Pinnate Prairie Coneflower, Yellow Coneflower, Grayhead Coneflower – Ratibida pinnata