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Asia-Temperate Caucasus North Caucasus Transcaucasus China Xinjiang Middle Asia Kazakhstan Kirgizistan Tadzhikistan Uzbekistan Siberia Altay West Siberia Western Asia Iran Iraq Turkey Europe Eastern Europe Krym South European Russia Ukraine Southeastern Europe Albania Bulgaria Greece Italy Yugoslavia Introduced into Asia-Temperate Eastern Asia Korea Russian Far East Primorye Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia North European Russia Northwest European Russia Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Switzerland Northern Europe Denmark Finland Great Britain Ireland Norway Sweden Southeastern Europe Romania Southwestern Europe France Spain Northern America Eastern Canada New Brunswick Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Iowa Minnesota Missouri Wisconsin Northeastern U.S.A. Connecticut Indiana Maine Masachusettes Michigan New Hampshire New Jersey New York Ohio Pennsylvania Rhode I. Vermont Northwestern U.S.A. Oregon Washington Southeastern U.S.A. Delaware Kentucky Maryland North Carolina Tennessee Virginia Southwestern U.S.A. California Utah Western Canada British Columbia Manitoba