Native to:
Afghanistan,
Alaska,
Albania,
Alberta,
Altay,
Amur,
Arizona,
Austria,
Baltic States,
Belarus,
Belgium,
British Columbia,
Bulgaria,
California,
Central European Russia,
China North-Central,
China South-Central,
Colorado,
Connecticut,
Czechia-Slovakia,
Delaware,
Denmark,
East European Russia,
Finland,
France,
Germany,
Great Britain,
Greenland,
Hungary,
Iceland,
Idaho,
Illinois,
Indiana,
Inner Mongolia,
Iowa,
Iran,
Ireland,
Italy,
Japan,
Kamchatka,
Kentucky,
Khabarovsk,
Korea,
Magadan,
Maine,
Manchuria,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Mongolia,
Montana,
Nebraska,
Netherlands,
Nevada,
New Hampshire,
New Jersey,
New Mexico,
New York,
North Dakota,
North European Russia,
Northwest European Russia,
Norway,
NW. Balkan Pen.,
Ohio,
Ontario,
Oregon,
Pakistan,
Pennsylvania,
Poland,
Primorye,
Qinghai,
Québec,
Rhode I.,
Romania,
Saskatchewan,
South Dakota,
South European Russia,
Spain,
Sweden,
Switzerland,
Tennessee,
Texas,
Tibet,
Transcaucasus,
Türkey,
Ukraine,
Utah,
Vermont,
Virginia,
Washington,
West Himalaya,
West Siberia,
West Virginia,
Wisconsin,
Wyoming,
Xinjiang,
Yakutiya,
Yukon