Native to:
Alabama,
Alaska,
Albania,
Aleutian Is.,
Altay,
Amur,
Arkansas,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
California,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Connecticut,
Czechia-Slovakia,
Delaware,
Denmark,
District of Columbia,
East European Russia,
Finland,
France,
Georgia,
Germany,
Great Britain,
Hungary,
Iceland,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kuril Is.,
Labrador,
Laos,
Magadan,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Mongolia,
Nebraska,
Netherlands,
New Brunswick,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Carolina,
North Caucasus,
North Dakota,
North European Russia,
Northwest European Russia,
Norway,
Nova Scotia,
Nunavut,
NW. Balkan Pen.,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Poland,
Primorye,
Prince Edward I.,
Qinghai,
Québec,
Rhode I.,
Romania,
Sakhalin,
Saskatchewan,
South Dakota,
South European Russia,
Sweden,
Switzerland,
Tennessee,
Transcaucasus,
Tuva,
Türkey,
Türkey-in-Europe,
Ukraine,
Vermont,
Virginia,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Yakutiya