It might be iron weed as others have said although you might check out joe pye weed just for comparison
I've always wished all of the iron weed here was joe pye because of it's
medicinal qualities but no luck in my area of the Ozarks
The first photo does look similar to a wild aster as Lorne suggests.
The color looks different in the second picture?
"We're all just walking each other home." -Ram Dass
"Be a lamp, or a lifeboat, or a ladder."-Rumi
"It's all one song!" -Neil Young