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

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

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.