Boar Thistle
Cirsium arvense (L.) Scop.
Cirsium arvense (L.) Scop. is a perennial flowering plant in the family Asteraceae, native to Europe, western Asia, and northern Africa, and widely introduced elsewhere. It is known as creeping thistle in its native range and is also called Canada thistle or field thistle. The species was first described in 1772.
Description
Cirsium arvense is a member of the daisy family, Asteraceae, and is part of the genus Cirsium. It is commonly referred to as Boar Thistle in English. The plant is distributed across Greenland, Labrador, Newfoundland, Alberta, British Columbia, Manitoba, New Brunswick, Nova Scotia, Northwest Territories, Ontario, Prince Edward Island, Quebec, Saskatchewan, Yukon, Saint Pierre and Miquelon, Açores, Portugal Continental, Flores Island, Graciosa Island, and Denmark. It is a widespread and persistent species, often found in disturbed habitats and agricultural areas.
Other common names
Boar ThistleCalifornia ThistleCalifornian ThistleCally ThistleCally Thistle (Nz)Canada ThistleCanadian ThistleCreeping ThistleField ThistlePerennial Thistle
Distribution
Greenland · Labrador · Newfoundland · Alberta · British Columbia · Manitoba · New Brunswick · Nova Scotia · Northwest Territories · Ontario · Prince Edward Island · Quebec · Saskatchewan · Yukon · Saint Pierre and Miquelon · Açores · Portugal Continental · Flores Island · Graciosa Island · DK · FI · NO · SE · RU · ZA · CL · NP · Belgium · France · The Netherlands
Synonyms
Breea setosaCirsium arvense f. incanumCnicus lanatusCirsium sordidumSerratula incanaCnicus setosusCirsium praealtumCephalonoplos setosusCirsium dioicumCirsium macrostylonBreea praealtaBreea setosaCnicus ruthenicusCnicus arvensisBreea ochrolepidiaCarduus arvensisCirsium arvense f. arvenseCynara repensCirsium incanumCarduus haemorrhoidalisCirsium stocksiiCirsium albiflorumCarduus serratuloidesCirsium ochrolepidiumSerratula spinosaCnicus neglectusCirsium segetum f. segetumCirsium arvense subsp. arvenseCirsium setosum var. setosumCarduus arvensis var. arvensis
