Ophioglossum pusillum Raf.
Common Name: NORTHERN ADDER'S-TONGUE
Coefficient of Conservatism: 6
Coefficient of Wetness: -3
Wetness Index: FACW
Physiognomy: Nt Fern

Ophioglossum pusillum ex W. H. Wagner slide collection

Moist sandy fields, ditch banks, often in sandy soils; not in heavily shaded sites, but occasionally in dense vegetation; rather local, but widespread.

Locations

Alger County
Allegan County
Barry County
Bay County
Benzie County
Cheboygan County
Chippewa County
    Including Drummond Island
Clare County
Clinton County
Crawford County
Delta County
Emmet County
Gladwin County
Grand Traverse County
Houghton County
Huron County
Iron County
Jackson County
Kalamazoo County
Keweenaw County
    Including Isle Royale
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Livingston County
Luce County
Mackinac County
Manistee County
Marquette County
Midland County
Monroe County
Montmorency County
Oakland County
Ogemaw County
Osceola County
Oscoda County
Ottawa County
Roscommon County
Saginaw County
Schoolcraft County
Shiawassee County
St. Clair County
Tuscola County
Van Buren County
Washtenaw County
Wayne County
Wexford County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 16, 2017. http://www.michiganflora.net/species.aspx?id=1791.