Native to:
Alaska,
Albania,
Alberta,
Aleutian Is.,
Altay,
Amur,
Baltic States,
Belarus,
Belgium,
British Columbia,
Buryatiya,
California,
Central European Rus,
China North-Central,
China South-Central,
Chita,
Colorado,
Connecticut,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Irkutsk,
Japan,
Kamchatka,
Kansas,
Kazakhstan,
Khabarovsk,
Korea,
Krasnoyarsk,
Kuril Is.,
Magadan,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
Nebraska,
Netherlands,
New Hampshire,
New Jersey,
New York,
Newfoundland,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Poland,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Romania,
Sakhalin,
Saskatchewan,
South Dakota,
South European Russi,
Sweden,
Switzerland,
Tuva,
Ukraine,
Utah,
Vermont,
Washington,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Yakutskiya,
Yugoslavia,
Yukon
Extinct in:
Bulgaria
Introduced into:
Ireland