This article analyzes the potential impacts of the 2012 National Wetland Plant List, released earlier this year. The author concludes that the 2012 NWPL could effect a sea change in wetland regulation, as it classifies far more plants as ‘‘wetland’’ species than ever before, and includes scores of new plants, the majority of which are classified as wetland species. As a result, it almost certainly will cause substantially more areas to qualify as wetlands, and therefore, be subject to Clean Water Act jurisdiction.