US Counties in which the American Hart'S-Tongue fern, is known to or is believed to occur:

State County
Michigan Chippewa
Alabama Jackson
Michigan Mackinac
New York Madison
Tennessee Marion
Alabama Marshall
Alabama Morgan
New York Onondaga

This report contains Counties in which this species is known to or is believed to occur. If you are looking for the Section 7 range (for Section 7 Consultations), please visit the IPaC application.