jackm1943 wrote:
These are some of the photos I took several years ago at the Sand Hills State Park in Hutchinson, Kansas, not far from the Prairie Dunes Golf Course. I have no idea what they are but suspect the first one may be a pod that eventually turns into what is called a Devil's Claw in that part of the country.
According to Picture This your plant is Blue Wild Indigo. aka Rattlebush and Horsefly weed.