Desmanthus illinoensis

Family: Fabaceae
Common Names: Illinois Bundleflower, Bundleflower, Prairie Bundle Flower, Prickleweed, Illinois Desmantus 

Native to USA: AL, AR, CO, DC, FL, GA, IA, IL, IN, KS, KY, LA, MD, MN, MO, MS, NC, ND, NE, NM, NV, OH, OK, PA, SC, SD, TN, TX, UT, VA, WI