Spotted Knapweed, an invasive plant most commonly associated with invading range lands in the western United States, has been reported from 4 counties within the River to River CWMA. Spotted Knapweed is an invader of open and disturbed lands and can out-compete and displace other species. It is flowering this time of year and is easily recognizable. To find out how to identify this plant or more about its ecology, go to http://www.invasive.org/species%20subject.cfm?sub=3013. The River to River CWMA is interested in recording any newly found infestations of this plant. If you find a suspected location, please submit a report along with digital images to the CMWA through our report form: Report
The River to River Cooperative Weed Management Area is a partnership between 12 federal and state agencies, organizations, and universities aimed at coordinating efforts and programs for addressing the threat of invasive plants in Southern Illinois.