Native Plant Trust (Massachusetts).
Formerly the New England Wild Flower Society.
Great Lakes Fishery Commission. Fisheries Management.
Environmental Law Institute.
Making a List: Prevention Strategies for Invasive Plants in the Great Lakes States surveys plant listing programs in Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin to assess the effectiveness of listing as a tool to prevent the proliferation and spreads of invasive plant species.
North Dakota Weed Control Association.
Great Lakes Fishery Commission.