Native to:
Albania,
Alberta,
Algeria,
Austria,
Azores,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
California,
Czechoslovakia,
Denmark,
East European Russia,
Egypt,
France,
Germany,
Great Britain,
Greece,
Hungary,
Idaho,
Illinois,
Indiana,
Iowa,
Ireland,
Italy,
Kansas,
Kentucky,
Libya,
Maine,
Manitoba,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
Morocco,
Nebraska,
Netherlands,
Nevada,
New Mexico,
New York,
North Caucasus,
North Dakota,
Northwest European R,
Ohio,
Oklahoma,
Ontario,
Oregon,
Pennsylvania,
Poland,
Portugal,
Québec,
Romania,
Saskatchewan,
South Dakota,
Spain,
Sweden,
Switzerland,
Tennessee,
Texas,
Tunisia,
Ukraine,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming,
Yugoslavia