Native to:
Albania,
Algeria,
Altay,
Austria,
Baleares,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Buryatiya,
Canary Is.,
Central European Rus,
China North-Central,
Chita,
Corse,
Cyprus,
Czechoslovakia,
Denmark,
East Aegean Is.,
East European Russia,
East Himalaya,
Egypt,
Finland,
France,
Germany,
Great Britain,
Greece,
Hungary,
Ireland,
Irkutsk,
Italy,
Kazakhstan,
Kirgizstan,
Krasnoyarsk,
Kriti,
Krym,
Lebanon-Syria,
Libya,
Madeira,
Morocco,
Netherlands,
North Caucasus,
Northwest European R,
Norway,
Pakistan,
Poland,
Portugal,
Primorye,
Qinghai,
Romania,
Sakhalin,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Turkmenistan,
Tuva,
Ukraine,
Uzbekistan,
West Himalaya,
West Siberia,
Xinjiang,
Yakutskiya,
Yugoslavia
Introduced into:
Alabama,
Alaska,
Alberta,
Amsterdam-St.Paul Is,
Argentina Northeast,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Brazil South,
British Columbia,
California,
Cape Provinces,
Chatham Is.,
Chile Central,
Chile South,
Colorado,
Connecticut,
Crozet Is.,
Delaware,
District of Columbia,
Falkland Is.,
Føroyar,
Greenland,
Hawaii,
Iceland,
Idaho,
Illinois,
Indiana,
Iowa,
Japan,
Juan Fernández Is.,
Kansas,
Kentucky,
Kermadec Is.,
Korea,
Louisiana,
Maine,
Maryland,
Massachusetts,
Mexican Pacific Is.,
Mexico Northwest,
Michigan,
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,
Norfolk Is.,
North Carolina,
North Dakota,
North European Russi,
Northern Provinces,
Northwest Territorie,
Nova Scotia,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Queensland,
Québec,
Rhode I.,
South Australia,
South Carolina,
South Dakota,
St.Helena,
Taiwan,
Tasmania,
Tennessee,
Texas,
Uruguay,
Utah,
Victoria,
Virginia,
Washington,
Western Australia,
Wisconsin,
Wyoming,
Yukon