Thanks, folks, the comments are always appreciated.
Brandt, the original file does indeed have structure, so I need to go back to this. Good point.
...some of the flower heads appear to be wind-blown but the stalks on which the flowers rest do not appear to be affected by the wind.
Sean, there was a little wind, so I shot at 1/250 to freeze things. But I think the seed heads got their shape during many weeks of wind.