Japanese anemone, gone to seed

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When Japanese anemone flowers are done blooming, what's left are a lot of seeds packed very tightly on the outside of what's left of the flower.  The plant grows a bunch of cottony stuff inside that batch of tightly-packed seeds.  Eventually the cottony stuff starts pushing the seeds apart, as you see in the upper left corner of this image.

The next step is the "cotton" pushes so much that the original shape is no longer perceptible, and finally the cottony seeds push each other away, and the seeds separate.

A closer look at the seeds when the "cotton" is not fully developed.

I didn't test these, to see if the fluff is "sticky" (like a burr, maybe?).  Or to see if a seed-plus-fluff is light enough to float some distance away from the mother plant.

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