Perennial with upright stems with alternate, sharply toothed leaves. Produces multiple stalks with tiny yellow flowers. Flower petals have a folded appearance. This plant has the ability to self-pollinate. Often found growing in colonies. Mildly toxic.
Moist prairie, ditches, stream beds, and hillsides.
Black swallowtail caterpillars eat the flowers and leaves.
Attracts a variety of nectar seeking bees.
Used medicinally by North American aboriginals for fever and headache.
Early settlers believed it to be a cure for syphilis.