Verbreitung
Heimisch: BR, China North-Central, China South-Central, China Southeast, East Himalaya, England [I] (England [I], Wales [I], Scotland [I], Isles of Scilly [I]); Ireland [I] (Ireland [I], Northern Ireland [I]); Denmark [I]; Norway [I]; Germany [I]; Switzerland [I]; Poland [I]; Hungary [I]; Baleares [I]; Channel Isl. [I] (Alderney [I], Guernsey [I]); Ukraine [I]; Morocco [c]; Madeira [I] (Madeira Isl. [I]); São Tomé [I]; Kazakhstan [I]; Uzbekistan [I]; Afghanistan [c]; China (Henan, Jiangsu, Shandong); North Korea; South Korea; Japan (Hokkaido, Honshu, Shikoku, Kyushu); Pakistan [I]; Nepal [c]; India [I] (Himachal Pradesh [I], Jammu & Kashmir [I], Karnataka [I], Manipur [I], Meghalaya [I], Uttarakhand [I]); Myanmar [I]; Vietnam [I]; Java [I]; New Zealand [I]; Canada [I] (British Columbia [I], New Brunswick [I], Nova Scotia [I], Ontario [I], Québec [I]); USA [I] (Alabama [I], Arkansas [I], California [I], Connecticut [I], District of Columbia [I], Delaware [I], Florida [I], Georgia [I], Iowa [I], Illinois [I], Indiana [I], Kansas [I], Kentucky [I], Louisiana [I], Massachusetts [I], Maryland [I], Maine [I], Michigan [I], Minnesota [I], Missouri [I], Mississippi [I], North Carolina [I], Nebraska [I], New Hampshire [I], New Jersey [I], New Mexico [I], New York [I], Ohio [I], Oklahoma [I], Oregon [I], Pennsylvania [I], Rhode Island [I], South Carolina [I], Tennessee [I], Texas [I], Virginia [I], Vermont [I], Washington State [I], Wisconsin [I], West Virginia [I]); Mexico [I]; Guatemala [I]; Honduras [I]; Nicaragua [I]; Colombia [I]; Argentina [I], Japan, Korea, Manizales, North America
Eingeführt: AT, Alabama, Argentina South, Arkansas, Assam, Belgium, British Columbia, Brussels-Capital Region, Bulgaria, California, Canary Is., Colorado, Connecticut, Cultivada, Delaware, District of Columbia, Flemish Region, Florida, France, Georgia, Germany, Gilbert Is., Great Britain, Greece, Guatemala, Gulf of Guinea Is., Illinois, India, Indiana, Iowa, Ireland, Kansas, Kazakhstan, Kentucky, Louisiana, Madeira, Maine, Maryland, Massachusetts, Mexico Southeast, Michigan, Minnesota, Mississippi, Missouri, Morocco, Nebraska, Netherlands, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, New Zealand North, New Zealand South, Newfoundland, North Carolina, Nova Scotia, Ohio, Oklahoma, Ontario, Oregon, Pakistan, Pennsylvania, Poland, Québec, Rhode I., South Carolina, Spain, Tennessee, Texas, Utah, Uzbekistan, Vermont, Virginia, Walloon Region, Washington, West Himalaya, West Virginia, Wisconsin