Native to:
Alaska,
Alberta,
Aleutian Is.,
Altay,
Amur,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
California,
Central European Russia,
Colorado,
Connecticut,
Czechia-Slovakia,
Denmark,
District of Columbia,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Greenland,
Iceland,
Idaho,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Khabarovsk,
Krasnoyarsk,
Kuril Is.,
Labrador,
Magadan,
Maine,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Montana,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Carolina,
North Caucasus,
North European Russia,
Northwest European Russia,
Norway,
Nova Scotia,
Nunavut,
NW. Balkan Pen.,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Poland,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Sakhalin,
Saskatchewan,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Türkey,
Ukraine,
Vermont,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Yakutiya,
Yukon