I have seen mostly bumble bees nectaring on it. They have obviously done their job because on one plant there are seeds absolutely about to burst open.
When it does it will look like this one with the delicate angel hair.
I will allow these to be planted any place in my garden they care to alight. The next big storm should do a fine job of planting these seeds.
This plant also hosts nymphs of bugs other than butterflies. I don't know what these are but they do appear robust as they suck on this seedpod.
For more Wildflower Wednesday chat go to Gail's at Clay and Limestone.
P.S. Gail, I am sorry I am so late.