The flowers completely opened in the middle of the night. (I went out to look at them at 3am!)
I have several people working on identifying this over at Dave'sGarden.com We've narrowed it down to this and that. Enjoy!
If you click on each photo, it links to a larger shot. (really awesome!)
If you click on Slideshow it goes to that.
http://photobucket.com/albums/v31/tlspiegel/Unknown/