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Africa Northern Africa Morocco (Doubtful) Asia-Temperate Caucasus North Caucasus Transcaucasus China China North-Central China South-Central Xinjiang Eastern Asia Japan Korea Middle Asia Kazakhstan Kirgizistan Tadzhikistan Turkmenistan Uzbekistan Siberia Altay West Siberia Western Asia Afghanistan Iran Iraq Lebanon-Syria Turkey Asia-Tropical Indian Subcontinent Nepal Pakistan West Himalaya 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 Switzerland Southeastern Europe Albania Bulgaria Greece Italy Romania Sicilia Yugoslavia Southwestern Europe Baleares Corse France Portugal Spain Introduced into Africa Macaronesia Azores Asia-Temperate Russian Far East Khabarovsk Magadan Primorye Australasia Australia Tasmania New Zealand New Zealand North New Zealand South Europe Middle Europe Austria Belgium Czechoslovakia Germany Netherlands Poland Northern Europe Denmark Finland Great Britain Norway Sweden Northern America Eastern Canada New Brunswick Newfoundland Nova Scotia Ontario Prince Edward I. Québec 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 Southwestern U.S.A. Arizona California Nevada Utah Subarctic America Alaska Western Canada Alberta British Columbia Manitoba Saskatchewan Southern America Southern South America Argentina Northeast Argentina Northwest Argentina South Western South America Colombia