Doubtfully present in:
Albania
Native to:
Alaska,
Aleutian Is.,
Algeria,
Angola,
Baleares,
Baltic States,
Bangladesh,
Belgium,
Bermuda,
British Columbia,
Bulgaria,
California,
Canary Is.,
Cape Provinces,
Central American Pac,
Chile Central,
China North-Central,
Comoros,
Connecticut,
Corse,
Delaware,
Denmark,
East Aegean Is.,
Egypt,
Finland,
France,
Føroyar,
Germany,
Great Britain,
Greece,
Greenland,
Honduras,
Iceland,
Iran,
Ireland,
Italy,
Japan,
Kamchatka,
Kazakhstan,
Kenya,
Khabarovsk,
Korea,
Kriti,
Krym,
Kuril Is.,
KwaZulu-Natal,
Labrador,
Libya,
Madagascar,
Magadan,
Maine,
Manchuria,
Maryland,
Massachusetts,
Mauritania,
Mexican Pacific Is.,
Mexico Northwest,
Morocco,
Mozambique,
Myanmar,
Nansei-shoto,
Netherlands,
New Brunswick,
New Guinea,
New Hampshire,
New South Wales,
New York,
New Zealand North,
New Zealand South,
Newfoundland,
Norfolk Is.,
North Carolina,
North Caucasus,
North European Russi,
Northwest European R,
Norway,
Nova Scotia,
Nunavut,
Ontario,
Oregon,
Poland,
Portugal,
Primorye,
Prince Edward I.,
Queensland,
Québec,
Rhode I.,
Romania,
Sakhalin,
Sardegna,
Sicilia,
Sinai,
South Australia,
South European Russi,
Spain,
Sweden,
Taiwan,
Tanzania,
Tasmania,
Thailand,
Transcaucasus,
Tunisia,
Turkey,
Turkey-in-Europe,
Ukraine,
Uzbekistan,
Victoria,
Vietnam,
Virginia,
Washington,
Western Australia,
Western Sahara,
Yugoslavia,
Yukon