Native to:
Alaska,
Aleutian Is.,
Baltic States,
Belgium,
British Columbia,
California,
China North-Central,
China Southeast,
Connecticut,
Denmark,
Finland,
Føroyar,
Germany,
Great Britain,
Greenland,
Iceland,
Illinois,
Indiana,
Ireland,
Japan,
Kamchatka,
Khabarovsk,
Korea,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manchuria,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
Nansei-shoto,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Dakota,
North European Russia,
Northwest European Russia,
Northwest Territories,
Norway,
Nova Scotia,
Nunavut,
Ohio,
Ontario,
Oregon,
Poland,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Sakhalin,
Sweden,
Vermont,
Washington,
West Siberia,
Wisconsin,
Yakutiya,
Yukon
Extinct in:
France
Introduced into:
Chile Central