Large, coarse, weedy plants have large broadish oblong leaves. Round clusters of pale pink, fragrant blooms appear in upper leaf axils in summer. Leaves and stems exude milky sap when cut. Spreads rapidly via long (6'+), deep rhizomes.
Large, warty seed pods split open in fall releasing papery seeds on silky parachutes. Prefers full sun and dry, average to poor soil. Larval food for Monarch butterflies. Good nectar source. NATIVE.