Credit: Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA SCS. 1989.
Midwest wetland flora: Field office illustrated guide to plant species.
Midwest National Technical Center, Lincoln, NE.
Found in different parts of the U.S., many grow readily in disturbed soils, in waste areas and with cultivated crops.
Gastrointestinal irritation, colic
Toxic to Horses
Non-Toxic to Dogs
Non-Toxic to Cats