Native to:
Alaska,
Alberta,
Aleutian Is.,
Argentina Northwest,
Argentina South,
Arizona,
Arkansas,
Bolivia,
British Columbia,
California,
Chile Central,
Chile South,
Colombia,
Colorado,
Ecuador,
Idaho,
Kamchatka,
Kuril Is.,
Louisiana,
Maine,
Manitoba,
Massachusetts,
Mexico Central,
Mexico Northwest,
Michigan,
Minnesota,
Montana,
Nebraska,
Nevada,
New Brunswick,
New Mexico,
New South Wales,
North Carolina,
North Dakota,
Northern Territory,
Ontario,
Oregon,
Pennsylvania,
Peru,
Queensland,
Québec,
Saskatchewan,
South Australia,
South Dakota,
Utah,
Victoria,
Washington,
Western Australia,
Wisconsin,
Wyoming,
Yukon
Introduced into:
Austria,
Finland,
Great Britain,
Illinois,
Mexican Pacific Is.,
New York,
Norway,
Switzerland