Re-edited this shot to upload a larger image, but, I think I like the 'darker' 1st edit better back in 2010 better.
See 'previous' for original edit.
After some examinations; believe the flower is Hoary Puccoon.
Nikon D700
,AF-S VR Nikkor 70-200mm f2.8G 1/1000s f/10.0 at 140.0mm iso320
UnCropped but with Size Reduced for Internet Viewing
full exif