Native to:
Afghanistan,
Alaska,
Albania,
Alberta,
Algeria,
Altay,
Amur,
Assam,
Austria,
Azores,
Baleares,
Baltic States,
Bangladesh,
Belarus,
Belgium,
British Columbia,
Bulgaria,
Buryatiya,
Canary Is.,
Cape Provinces,
Central European Rus,
China North-Central,
China South-Central,
China Southeast,
Chita,
Colorado,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
Djibouti,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
France,
Free State,
Germany,
Great Britain,
Greece,
Hungary,
Idaho,
India,
Inner Mongolia,
Iran,
Iraq,
Irkutsk,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Khabarovsk,
Kirgizstan,
Korea,
Krasnoyarsk,
Kriti,
Krym,
Kuril Is.,
Kuwait,
KwaZulu-Natal,
Lebanon-Syria,
Lesotho,
Libya,
Madeira,
Magadan,
Manchuria,
Mongolia,
Montana,
Morocco,
Myanmar,
Nepal,
Netherlands,
New Mexico,
North Caucasus,
North European Russi,
Northern Provinces,
Northwest European R,
Northwest Territorie,
Oregon,
Pakistan,
Palestine,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
Saudi Arabia,
Sicilia,
Sinai,
South European Russi,
Spain,
Sri Lanka,
Swaziland,
Sweden,
Switzerland,
Tadzhikistan,
Taiwan,
Thailand,
Tibet,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
Vietnam,
West Himalaya,
West Siberia,
Western Sahara,
Wyoming,
Xinjiang,
Yakutskiya,
Yugoslavia,
Yukon
Introduced into:
Alabama,
Argentina Northeast,
Arizona,
Arkansas,
California,
Connecticut,
Delaware,
District of Columbia,
Eritrea,
Finland,
Florida,
Georgia,
Illinois,
Indiana,
Kansas,
Kentucky,
Louisiana,
Maryland,
Massachusetts,
Michigan,
Missouri,
New Brunswick,
New Hampshire,
New Jersey,
New York,
New Zealand North,
New Zealand South,
North Carolina,
Norway,
Ohio,
Ontario,
Pennsylvania,
Québec,
South Dakota,
Tennessee,
Texas,
Vermont,
Virginia,
West Virginia