Native to:
North Caucasus
Introduced into:
Afghanistan,
Alaska,
Argentina South,
Austria,
Baltic States,
Belgium,
British Columbia,
Bulgaria,
California,
Central European Rus,
Connecticut,
Czechoslovakia,
Delaware,
District of Columbia,
East European Russia,
East Himalaya,
France,
Georgia,
Germany,
Great Britain,
Hungary,
Idaho,
Illinois,
Indiana,
Iowa,
Iran,
Ireland,
Irkutsk,
Italy,
Kansas,
Kazakhstan,
Kentucky,
Korea,
Madeira,
Maine,
Maryland,
Massachusetts,
Michigan,
Missouri,
Montana,
Nebraska,
New Brunswick,
New Hampshire,
New Jersey,
New Mexico,
New South Wales,
New York,
New Zealand North,
New Zealand South,
North Carolina,
Nova Scotia,
Ohio,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Poland,
Portugal,
Prince Edward I.,
Québec,
Rhode I.,
Sardegna,
Sicilia,
South European Russi,
Spain,
Sweden,
Switzerland,
Tadzhikistan,
Transcaucasus,
Turkey,
Turkmenistan,
Ukraine,
Uzbekistan,
Vermont,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Xinjiang,
Yugoslavia