Each pin on the map represents a verified population of invasive Phragmites. Click on a population to learn details about the location. You can also click the icon in the top-left corner to add data to the map, including populations that have not been verified as invasive Phragmites, populations verified as native Phragmites, information on seed viability for a variety of populations, and wastewater treatment facilities that are using or have used invasive Phragmites in their operations. You can download a list containing all verified populations here. As of June 2019, 389 populations have been verified.