Attn, Wayne Jones

I found, last summer, what is to me an oddity. I thought you might be of help getting an ID on this wildflower. The oddity for me is that this bloom has green leaf like petals and they are different from the actual "leaves" of the plant as can be seen here. It looks to me like some form of astor.

This was growing right next to a pond in course sandy soil and was shot on Sept. 13, 2012 here in SW Oregon.

Thanks for any help with ID.

Olympus E-5
12-60mm @ 37mm fl
1/10 sec, f5.6
Approx 60% of FF
ISO100

Large view provided