Calopogon tuberosus
 Calopogon tuberosus the tuberous grasspink is an orchid native to eastern North America. In the United States it occurs from as far southwest as Texas and Oklahoma and southeast to the Florida Everglades to as far northeast as Maine and as far northwest as Minnesota. In Canada it is found in the provinces of Nova Scotia Ontario and Quebec. It also is found in Cuba and the Bahamas.