Eight years in and I still haven't identified these flowers. If anyone has an idea, please let me know.
They are perennial. Each stem has its own root. The roots are kind of thin hairy taproots. Leaves are single all the way up the stem.
They get 4-5' tall and bloom around the beginning of August. They don't really smell like anything. The bees like them. The chickens do not. The cows and goats have nipped at them, but never devoured them.