Native to:
Afghanistan,
Alabama,
Albania,
Algeria,
Altay,
Amur,
Arkansas,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Cape Verde,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Connecticut,
Corse,
Cyprus,
Czechoslovakia,
Delaware,
District of Columbia,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Ethiopia,
Florida,
France,
Georgia,
Germany,
Great Britain,
Greece,
Gulf States,
Hainan,
Hungary,
Illinois,
India,
Indiana,
Inner Mongolia,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Kentucky,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
Kuwait,
Lebanon-Syria,
Libya,
Louisiana,
Madeira,
Magadan,
Maine,
Manchuria,
Maryland,
Massachusetts,
Michigan,
Mississippi,
Mongolia,
Morocco,
Nansei-shoto,
Nebraska,
Nepal,
Netherlands,
New Hampshire,
New Jersey,
New Mexico,
New York,
North Carolina,
North Caucasus,
North Dakota,
North European Russi,
Northwest European R,
Ogasawara-shoto,
Ohio,
Oman,
Pakistan,
Palestine,
Pennsylvania,
Poland,
Portugal,
Primorye,
Qinghai,
Rhode I.,
Romania,
Sakhalin,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South Carolina,
South European Russi,
Spain,
Switzerland,
Tadzhikistan,
Taiwan,
Tennessee,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
Vermont,
Virginia,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yemen,
Yugoslavia
Introduced into:
Alaska,
Alberta,
Antipodean Is.,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Bahamas,
Bermuda,
Bolivia,
Botswana,
Brazil South,
Brazil Southeast,
Brazil West-Central,
British Columbia,
California,
Cameroon,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile North,
Chile South,
Colombia,
Colorado,
Costa Rica,
Cuba,
Denmark,
Dominican Republic,
Ecuador,
Finland,
Free State,
Føroyar,
Gulf of Guinea Is.,
Hawaii,
Iceland,
Idaho,
Iowa,
Jawa,
Kansas,
Kenya,
Kermadec Is.,
KwaZulu-Natal,
Labrador,
Lesotho,
Manitoba,
Marianas,
Mauritania,
Mauritius,
Mexico Northwest,
Mexico Southwest,
Minnesota,
Missouri,
Montana,
Mozambique,
Namibia,
Nevada,
New Brunswick,
New Caledonia,
New South Wales,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
Northern Provinces,
Northern Territory,
Northwest Territorie,
Norway,
Nova Scotia,
Nunavut,
Oklahoma,
Ontario,
Oregon,
Panamá,
Paraguay,
Peru,
Prince Edward I.,
Queensland,
Québec,
Saskatchewan,
Seychelles,
South Australia,
South Dakota,
Sri Lanka,
Swaziland,
Sweden,
Tasmania,
Texas,
Tristan da Cunha,
Uruguay,
Utah,
Washington,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Yukon,
Zambia,
Zimbabwe