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Africa Northern Africa Algeria Morocco Asia-Temperate Caucasus North Caucasus Transcaucasus Middle Asia Uzbekistan Western Asia Iran Turkey Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia Krym Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Yugoslavia Southwestern Europe Corse France Sardegna Spain Introduced into Australasia New Zealand New Zealand South Europe Eastern Europe North European Russia Middle Europe Netherlands Northern Europe Denmark Finland Great Britain Ireland Norway Sweden Southwestern Europe Portugal Northern America Eastern Canada New Brunswick Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Iowa Kansas Minnesota Missouri Nebraska North Dakota South Dakota Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont West Virginia Northwestern U.S.A. Colorado Idaho Montana Washington South-Central U.S.A. New Mexico Southeastern U.S.A. Delaware Maryland Virginia Western Canada British Columbia Manitoba