A flower

With in a flower, I am not going to tell you what this is, I had never really noticed this about this flower before, see if some of you can work it out :-))
Oh and thy are quite common.
Windy today not very pleasant and now its raining I just picked this one before it started to rain a welcome relief we had rain last night as well so this will be a good top up I know snowy will be very happy.