Native to:
Afghanistan,
Alaska,
Albania,
Alberta,
Algeria,
Altay,
Amur,
Arizona,
Arkansas,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
California,
Canary Is.,
Cape Verde,
Central European Russia,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Costa Rica,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Finland,
France,
Germany,
Greece,
Greenland,
Guatemala,
Hungary,
Iceland,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Iraq,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kansas,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
Lebanon-Syria,
Madeira,
Magadan,
Maine,
Manchuria,
Manitoba,
Mexican Pacific Is.,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Missouri,
Mongolia,
Montana,
Morocco,
Nebraska,
Nepal,
Netherlands,
Nevada,
New Hampshire,
New Mexico,
New York,
Newfoundland,
North Caucasus,
North Dakota,
North European Russia,
Northwest European Russia,
Northwest Territories,
Norway,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Palestine,
Pennsylvania,
Poland,
Portugal,
Primorye,
Qinghai,
Québec,
Romania,
Sakhalin,
Saskatchewan,
Saudi Arabia,
Selvagens,
Sicilia,
South Dakota,
South European Russia,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Tennessee,
Texas,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Utah,
Uzbekistan,
Washington,
West Himalaya,
West Siberia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Alabama,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Baleares,
Connecticut,
District of Columbia,
Ecuador,
Egypt,
Falkland Is.,
Florida,
Great Britain,
Ireland,
Labrador,
Louisiana,
Maryland,
Massachusetts,
Mississippi,
New Brunswick,
New Jersey,
New South Wales,
New Zealand North,
New Zealand South,
North Carolina,
Nunavut,
Prince Edward I.,
Rhode I.,
Sardegna,
South Australia,
Vermont,
Victoria,
Virginia,
West Virginia