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Asia-Temperate Caucasus Transcaucasus Siberia West Siberia Western Asia Iran Turkey Asia-Tropical Indian Subcontinent Nepal Europe Eastern Europe Baltic States Belarus Central European Russia East European Russia Krym North European Russia Northwest European Russia South European Russia Ukraine Middle Europe Austria Belgium Czechoslovakia Germany Hungary Netherlands Poland Switzerland Northern Europe Denmark Finland Norway Sweden Southeastern Europe Albania Bulgaria Greece Italy Romania Turkey-in-Europe Yugoslavia Southwestern Europe France Introduced into Asia-Temperate Russian Far East Primorye Asia-Tropical Indian Subcontinent Nepal West Himalaya Australasia New Zealand New Zealand North New Zealand South Europe Northern Europe Ireland Southwestern Europe Spain Northern America Eastern Canada Nova Scotia Ontario Prince Edward I. Québec Mexico Mexico Southeast North-Central U.S.A. Illinois Iowa Kansas Minnesota Missouri Nebraska North Dakota Oklahoma 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 Oregon Washington Wyoming South-Central U.S.A. New Mexico Texas Southeastern U.S.A. Alabama Arkansas Delaware District of Columbia Georgia Kentucky Louisiana Maryland Mississippi North Carolina South Carolina Tennessee Virginia Western Canada Alberta British Columbia Manitoba Saskatchewan Southern America Southern South America Argentina Northeast