Kota McCoy wrote:It's a Rudbeckia laciniata, which I think has a common name like a green coneflower. I've got many of them. They grow into fairly deep shade, self seed moderately, are a long lived perennial, transplant easily and are quite pretty, IMHO.
Rudebeckia's are close relatives of echinacea. Some, I'm not sure if this one, were used by Michael Moore as a feebler echinacea type medicine. Considering it's much more common than echinacea, it would seem to bear more study.