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Europe Middle Europe Germany Switzerland Southeastern Europe Albania Greece Italy Yugoslavia Southwestern Europe France Spain Introduced into Africa Macaronesia Azores Canary Is. Northern Africa Algeria Libya Morocco Tunisia Asia-Temperate Caucasus Transcaucasus Eastern Asia Korea Europe Eastern Europe South European Russia Ukraine Middle Europe Austria Czechoslovakia Northern Europe Ireland Southeastern Europe Bulgaria Romania Sicilia Turkey-in-Europe Southwestern Europe Baleares Portugal Sardegna Northern America Eastern Canada Ontario Québec Northeastern U.S.A. Connecticut Maine Michigan New York Ohio Pennsylvania Rhode I. Vermont West Virginia Northwestern U.S.A. Idaho Oregon Washington Southeastern U.S.A. Alabama Georgia Kentucky Maryland Tennessee Virginia Southwestern U.S.A. California Utah Southern America Brazil Paraní Rio Grande do Sul Santa Catarina Minas Gerais Rio de Janeiro São Paulo Southern South America Uruguay