Aquatic Plant Threats to the Columbia River

These presentation slides provide an overview of some of the invasive aquatic plants that pose an emerging threat to Oregon waterways. It contains botanical notes and high-quality photographs of approximately nine different plant species. Additional slides emphasize the importance of early detection and rapid response, as well as existing resources for invasive species outreach. This presentation was given orally at the Oregon Department of Agriculture's Interagency Noxious Weed Symposium to an audience of natural resource practitioners.