The American slough grass is classified as endangered in Illinois and threatened in Michigan (2), which protects the species from collection or deliberate harm. This grass also occurs on protected land in Michigan, including Isle Royale National Park (4). In the United States, some wetlands are regulated by the federal government under the Clean Water Act of 1972, and farmers who modify existing wetlands may lose their benefits from the United States Department of Agriculture. The United States Fish & Wildlife Service’s National Wetlands Inventory produces in-depth reports and surveys of the extent and quality of wetlands in the United States (9) (10), and since 1989 a ‘no net loss policy’ has ensured that the overall amount of wetland in the United States will remain near its current level (10). American slough grass occurs over a wide range, and some populations are known to exist within protected land (4).