This field guide was produced to help extension agents, regulatory and environmental agency field personnel, and plant nursery and water garden industry personnel to recognize the most invasive noxious aquatic and wetland weeds being sold and distributed in the United States. Twenty-one species are treated using color photographs and line drawings. Their origin, growth habit, ecological threat, ID characteristics, reproduction method and similarity to other plants is presented.

The guide was prepared by North Carolina Sea Grant and was funded by the U.S. Sea Grant's Aquatic Nuisance Species Research and Outreach Initiative.

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