Click on the image below to enlarge it and download a high-resolution
JPEG file. Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Courtesy of USDA NRCS Wetland Science Institute. Usage Requirements.
See U.S. county distributions (when available) by clicking on the map or the linked states below: USA (AL, AR, CO, FL, GA, IA, IL, IN, KS, KY, LA, MA, ME, MI, MO, MS, NC, ND, NE, NM, OH, OK, PA, SC, SD, TN, TX, VA, WI, WV)
This plant can be weedy or invasive according to the authoritative sources noted below. This plant
may be known by one or more common names in different
places, and some are listed above. Click on an acronym
to view each weed list, or click here for a
composite list of Weeds of the U.S.
Everitt, J.H., D.L. Drawe, and R.I. Lonard. 1999. Field guide to the broad leaved herbaceous plants of South Texas used by livestock and wildlife. Texas Tech University Press, Lubbock.