Native to:
Afghanistan,
Alabama,
Alaska,
Albania,
Alberta,
Aleutian Is.,
Algeria,
Altay,
Amur,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Assam,
Austria,
Azores,
Bahamas,
Baltic States,
Belarus,
Belgium,
Belize,
Bermuda,
Bolivia,
Brazil Northeast,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
Bulgaria,
Buryatiya,
California,
Cambodia,
Central European Rus,
Chile Central,
Chile North,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Connecticut,
Corse,
Cuba,
Czechoslovakia,
Delaware,
Denmark,
District of Columbia,
Dominican Republic,
East Aegean Is.,
East European Russia,
East Himalaya,
Finland,
Florida,
France,
Georgia,
Germany,
Great Britain,
Greece,
Guatemala,
Hungary,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Ireland,
Irkutsk,
Italy,
Japan,
Juan Fernández Is.,
Kamchatka,
Kansas,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Krym,
Kuril Is.,
Labrador,
Laos,
Lebanon-Syria,
Louisiana,
Magadan,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mexico Central,
Mexico Gulf,
Mexico Northeast,
Mexico Northwest,
Mexico Southeast,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Mongolia,
Montana,
Morocco,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New York,
Newfoundland,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pakistan,
Palestine,
Paraguay,
Pennsylvania,
Philippines,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Puerto Rico,
Québec,
Rhode I.,
Romania,
Sakhalin,
Sardegna,
Saskatchewan,
South Carolina,
South Dakota,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Tennessee,
Texas,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Uruguay,
Utah,
Uzbekistan,
Vermont,
Vietnam,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Borneo,
Colombia,
Cook Is.,
Fiji,
Hainan,
Hawaii,
India,
Jawa,
Leeward Is.,
Lesser Sunda Is.,
Madeira,
Malaya,
Mauritius,
Myanmar,
New South Wales,
New Zealand North,
New Zealand South,
Nicaragua,
Northern Territory,
Peru,
Qinghai,
Queensland,
Society Is.,
South Australia,
Sri Lanka,
Sulawesi,
Sumatera,
Tasmania,
Thailand,
Tibet,
Turkmenistan,
Victoria,
Western Australia