At the center
The center of a Black-eyed Susan (Rudbeckia):
Another view of the fruiting phase of a flower, part of the group of images I posted a while back, many of them asters. I’ll be back at ice photography again tomorrow morning, it’s going to be chilly tonight.
Nature Diary 
If you’d asked me to guess the flower on the basis of your photo, I’m not sure I would have gotten it right; even if I had, it probably would have taken a couple of guesses. It’s more conical than I remembered, but once I looked at some other images of the flower and the seed head, it felt familiar again. The pattern is beautiful.
I’m sure you would have gotten the correct ID! I found this stem in a powerline meadow area that had a mixture of native and other Rudbeckia species. Some are conical like this, and some are more rounded. Thanks – the pattern and the shape are what attracted me.
It seems likely the spirals exemplify the Fibonacci numbers.
It’s surely Fibonaccian, with not a little irregularity. Not a lot of depth of field at this magnification, even at f/16!
I should be used to it by now, but I’m still always impressed by the increased detail and complexity the closer we get to subjects. Fascinating. And the way the light hits the out of focus edges creates a soft glow, of sorts. I like that.