Ironweed

Prairie Home Introduction Common in wet prairies and moist prairie depressions, often growing with prairie Cord Grass. Usually up to 4' tall with smooth, hairless stems and leaves. The leaves are laternate, finely and regularly toothed along their edges. The largest leaves can be 6" long and over 1' wide, but are often much narrower. There are numerous tiny pits on the underside of each leaf. Flower heads are in a dense, rounded cluster at the top of the plant. Each flower has 5-petaled, tubular corolla and 2 protruding, threadlike style branches. Blooms: July to September. Want to Help Us Better Understand the Park? See our iNaturalist project, "The Life of the Mississippi National River and Recreation Area" and contribute to it by downloading the iNaturalist app and uploading your sightings of this species, and others, to the project. You can also upload your sightings from your computer.