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Asia-Temperate Caucasus North Caucasus Middle Asia Kazakhstan Siberia Altay West Siberia Western Asia Turkey Europe Eastern Europe Belarus Central European Russia East European Russia Krym Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Switzerland Northern Europe Great Britain Southeastern Europe Bulgaria Italy Romania Sicilia Turkey-in-Europe Yugoslavia Southwestern Europe France Sardegna Spain Introduced into Asia-Temperate China China North-Central China Southeast Manchuria Xinjiang Eastern Asia Korea Taiwan Russian Far East Primorye Siberia Chita Asia-Tropical Indo-China Vietnam Australasia Australia Tasmania Europe Eastern Europe Baltic States North European Russia Northern Europe Denmark Finland Ireland Norway Sweden Northern America Eastern Canada New Brunswick Newfoundland Nova Scotia Ontario Québec North-Central U.S.A. Illinois Minnesota Missouri 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 Oregon Washington Wyoming South-Central U.S.A. New Mexico Southeastern U.S.A. Arkansas Delaware District of Columbia Georgia Kentucky Maryland North Carolina Virginia Southwestern U.S.A. California Utah Western Canada Alberta British Columbia Manitoba Saskatchewan Southern America Brazil Brazil West-Central Caribbean Dominican Republic Haiti Southern South America Argentina Northeast