Elizabeth and I went to Goose Island State Park, in particular to find the turtles documented by some folks earlier in the month: http://www.inaturalist.org/projects/inat-observation-of-the-day/journal/4990
Alas, we didn't see the turtles, but that's ok -- we spotted LOTS of other really exciting things. :)
I'll have to study this aster for a bit... I'm not familiar with it.
Looks like a succulent
Borrichia is a genus of flowering plants in the aster family, Asteraceae. It is named for Danish physician Ole Borch (1628-1690). Members of the genus are commonly known as seaside tansies. They are native to the United States, Mexico, and the Caribbean.