This species is native throughout Europe and North Africa east through Turkey, Palestine and Lebanon to China, Japan and Korea. It has been introduced to North America and Australia where it can be extremely invasive. In Europe, it has been recorded from all countries except the Faroe Islands, Gibraltar (UK), Greek Aegean Islands, Crete, Cyprus, Iceland, Monaco, Azores, Madeira, Selvagens Islands, Russian Franz Josef Land and Novaya Zemlya, San Marino, Balearic Islands, Canary Islands and Svalbard and Jan Mayen (Norway).
Afghanistan; Albania; Algeria; Andorra; Armenia; Austria; Azerbaijan; Belarus; Belgium; Bosnia and Herzegovina; Bulgaria; China (Anhui, Beijing, Chongqing, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shandong, Shanghai, Shanxi, Sichuan, Tianjin, Tibet [or Xizang], Xinjiang, Yunnan, Zhejiang); Croatia; Czech Republic; Denmark; Estonia; Finland; France (Corsica, France (mainland)); Georgia; Germany; Greece (Greece (mainland)); Hungary; Iran, Islamic Republic of; Iraq; Ireland; Israel; Italy (Italy (mainland), Sardegna, Sicilia); Japan (Hokkaido, Honshu, Kyushu, Shikoku); Jordan; Korea, Democratic People's Republic of; Latvia; Lebanon; Liechtenstein; Lithuania; Luxembourg; Macedonia, the former Yugoslav Republic of; Malta; Moldova; Mongolia; Montenegro; Morocco; Netherlands; Norway; Pakistan; Palestinian Territory, Occupied; Poland; Portugal (Portugal (mainland)); Romania; Russian Federation (Central European Russia, East European Russia, European Russia, Kaliningrad, North European Russia, Northwest European Russia, South European Russia); Serbia; Slovakia; Slovenia; Spain (Spain (mainland)); Sweden; Switzerland; Syrian Arab Republic; Taiwan, Province of China; Tunisia; Turkey (Turkey-in-Europe); Ukraine (Ukraine (main part)); United Kingdom (Great Britain, Northern Ireland)
Australia (New South Wales, Queensland, South Australia, Tasmania, Victoria); Canada (Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland I, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan); Chile; New Zealand (North Is., South Is.); Saint Pierre and Miquelon; South Africa (Western Cape); United States (Alabama, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming)