Native to:
Albania,
Austria,
Baltic States,
Belarus,
Belgium,
Bulgaria,
Corse,
Czechia-Slovakia,
Denmark,
France,
Germany,
Great Britain,
Hungary,
Ireland,
Italy,
Netherlands,
North European Russia,
Northwest European Russia,
Norway,
NW. Balkan Pen.,
Poland,
Portugal,
Romania,
Sicilia,
Spain,
Sweden,
Switzerland,
Transcaucasus,
Ukraine
Introduced into:
Alaska,
Alberta,
Arkansas,
Azores,
Bolivia,
British Columbia,
California,
Canary Is.,
Cape Provinces,
Chatham Is.,
Colombia,
Colorado,
Connecticut,
Costa Rica,
Delaware,
District of Columbia,
Ecuador,
Hawaii,
Idaho,
Illinois,
Indiana,
Iowa,
Juan Fernández Is.,
Kentucky,
KwaZulu-Natal,
Madeira,
Maine,
Maryland,
Massachusetts,
Mexico Gulf,
Michigan,
Mississippi,
Missouri,
Montana,
Nevada,
New Brunswick,
New Hampshire,
New Jersey,
New South Wales,
New York,
New Zealand North,
North Carolina,
North Dakota,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pennsylvania,
Peru,
Québec,
Rhode I.,
South Australia,
Tasmania,
Tennessee,
Texas,
Tristan da Cunha,
Utah,
Vermont,
Victoria,
Virginia,
Washington,
West Himalaya,
West Virginia,
Western Australia,
Wisconsin