An official website of the United States government

The .gov means it’s official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser’s address (or “location”) bar.

This site is also protected by an SSL (Secure Sockets Layer) certificate that’s been signed by the U.S. government. The https:// means all transmitted data is encrypted  — in other words, any information or browsing history that you provide is transmitted securely.

You are here Back to top

Invasive Species Resources

Displaying 41 to 60 of 124

Search Help
Lake Stewards of Maine.
Special Note: Formerly known as the Maine Volunteer Lake Monitoring Program.
Lake Stewards of Maine.
Special Note: Formerly known as the Maine Volunteer Lake Monitoring Program.
Lake Stewards of Maine.
Special Note: Formerly known as the Maine Volunteer Lake Monitoring Program.
Lake Stewards of Maine.
Special Note: Formerly known as the Maine Volunteer Lake Monitoring Program.

University of California. Weed Research and Information Center.

University of Nevada. Cooperative Extension.

The plants listed in this field guide are nuisance weeds, those that are troublesome, but have not been listed by the state as noxious weeds. Similar to noxious weeds, nuisance weeds can spread rapidly and compete aggressively with desirable plants for light, nutrients and water. The purpose of this book is to help homeowners, land managers, green-industry personnel, agricultural producers and recreationists to identify nuisance weeds of Nevada. The over 60 weeds listed in this field guide were selected with input from Extension educators in Nevada counties, other University of Nevada Cooperative Extension personnel and local weed control groups. See also: Extension Publications for more resources.

University of Arizona. Cooperative Extension.
This booklet is the 2nd edition of a similar booklet published in 2001. This edition includes most of the invasive plant species that appeared in the 1st edition and several other species have been added. The booklet is not intended to provide a comprehensive list of all of Arizona’s invasive weeds, but rather, it illustrates a few invasive plants that have become, or have the potential to become, problematic in Arizona.
Publication Number: AZ1482-2016
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.
Ohio State University. Ohio Agricultural Research and Development Center.