A passage from Medicinal Plants of the American southwest:
Western peony’s two primary areas of influence are the uterine and bronchial areas. To these regions the plant is decidedly antispasmodic, lessening to tissue irritation, and generally sedating.
Author, Researcher, Clinician. Latest titles: Wild Edible Plants of Oklahoma, 2nd ed., Wild Edible Plants of Arizona, 2nd ed., and Wild Edible Plants of Arkansas, 2nd. ed.