Native to:
Albania,
Altay,
Austria,
Azores,
Belgium,
Bulgaria,
Buryatiya,
Central European Rus,
Chita,
Corse,
Czechoslovakia,
Denmark,
East European Russia,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Hungary,
Iceland,
Iran,
Iraq,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Kirgizstan,
Krasnoyarsk,
Krym,
Lebanon-Syria,
Morocco,
Netherlands,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Pakistan,
Poland,
Portugal,
Romania,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Transcaucasus,
Turkey,
Turkey-in-Europe,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Yakutskiya,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Aleutian Is.,
Amur,
Antipodean Is.,
Argentina Northeast,
Argentina South,
Arizona,
Arkansas,
Bermuda,
Brazil South,
British Columbia,
California,
Chatham Is.,
Chile Central,
Chile South,
China North-Central,
China South-Central,
China Southeast,
Colorado,
Connecticut,
Crozet Is.,
Delaware,
District of Columbia,
Egypt,
Falkland Is.,
Florida,
Georgia,
Greenland,
Hawaii,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Jamaica,
Japan,
Kamchatka,
Kansas,
Kentucky,
Kerguelen,
Khabarovsk,
Korea,
Kuril Is.,
Labrador,
Louisiana,
Magadan,
Maine,
Manchuria,
Manitoba,
Maryland,
Massachusetts,
Mexico Southwest,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
North Carolina,
North Dakota,
Northwest Territorie,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Primorye,
Prince Edward I.,
Québec,
Rhode I.,
Sakhalin,
Saskatchewan,
South Australia,
South Carolina,
South Dakota,
South Georgia,
Tasmania,
Tennessee,
Texas,
Utah,
Vermont,
Victoria,
Virginia,
Washington,
West Virginia,
Western Australia,
Wisconsin,
Wyoming,
Xinjiang,
Yukon