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Asia-Temperate China China North-Central China South-Central China Southeast Inner Mongolia Manchuria Qinghai Tibet Eastern Asia Japan Korea Russian Far East Amur Khabarovsk Kuril Is. Primorye Western Asia Afghanistan Asia-Tropical Indian Subcontinent Nepal Pakistan West Himalaya Europe Eastern Europe Ukraine Southeastern Europe Albania Bulgaria Greece Romania Yugoslavia Introduced into Europe Eastern Europe Central European Russia East European Russia Krym South European Russia Middle Europe Austria Belgium Czechoslovakia Germany Hungary Poland Switzerland Northern Europe Great Britain Ireland Southeastern Europe Italy Southwestern Europe France Spain Northern America Eastern Canada New Brunswick Nova Scotia Ontario Prince Edward I. Québec North-Central U.S.A. Illinois Iowa Kansas Minnesota Missouri 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 South-Central U.S.A. New Mexico Southeastern U.S.A. Arkansas District of Columbia Kentucky Maryland North Carolina Tennessee Virginia Southwestern U.S.A. Arizona Utah Western Canada British Columbia Saskatchewan Southern America Southern South America Argentina South