Native to:
Alabama,
Alaska,
Albania,
Alberta,
Amur,
Arkansas,
Austria,
Belarus,
British Columbia,
California,
China North-Central,
China South-Central,
China Southeast,
Chita,
Czechia-Slovakia,
East Himalaya,
France,
Georgia,
Germany,
Greece,
Hungary,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Italy,
Japan,
Kamchatka,
Kentucky,
Khabarovsk,
Korea,
Kuril Is.,
Magadan,
Manchuria,
Maryland,
Mississippi,
Missouri,
Mongolia,
Nepal,
North Carolina,
North Caucasus,
NW. Balkan Pen.,
Ohio,
Oklahoma,
Oregon,
Pennsylvania,
Poland,
Primorye,
Romania,
Sakhalin,
South Carolina,
Spain,
Switzerland,
Tennessee,
Tibet,
Transcaucasus,
Türkiye,
Ukraine,
Virginia,
Washington,
West Himalaya,
West Virginia,
Yakutiya,
Yukon
Introduced into:
Baltic States,
Central European Russia,
Delaware,
Finland,
Great Britain,
Ireland,
Maine,
Michigan,
New Jersey,
New South Wales,
New York,
North European Russia,
Northwest European Russia,
Norway,
Nova Scotia,
Ontario,
Québec,
Sweden,
Vermont,
Wisconsin