Cirsium arvense

Cirsium arvense is a perennial species of flowering plant in the family Asteraceae. It is native in Europe, western Asia, and northern Africa. It is common in some other parts of the world where people have carried it. The standard English name in its native area is creeping thistle. It is also sometimes known as Canada thistle (a mistake, as it is not native in Canada) and field thistle.

Cirsium arvense
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Cirsium
Species:	C. arvense
Binomial name
Cirsium arvense (L.) Scop.
Synonyms
Synonymy Breea arvensis (L.) Less. Breea dioica (Cass.) Less. Breea ochrolepidia (Juz.) Soják Breea praealta Less. Breea setosa (Willd.) Soják Carduus arvensis (L.) Robson Carduus haemorrhoidalis Auct. ex DC. Carduus neglectus Steud. Carduus segetum (Bunge) Franch. Carduus serratuloides Neck. Carduus setosus Bab. Cephalonoplos arvense (L.) Fourr. Cephalonoplos arvensis (L.) Fourr. Cephalonoplos ochrolepidium (Juz.) Juz. Cephalonoplos segetum (Bunge) Kitam. Cephalonoplos setosus (Ledeb.) Kitam. Cirsium albicans Willk. Cirsium albiflorum (Kitag.) Kitag. Cirsium argenteum Peyer ex Vest Cirsium argunense DC. Cirsium celakovskianum Knaf Cirsium dioicum Cass. Cirsium halophilum Turcz. ex Herder Cirsium horridum (Wimm. & Grab.) Stankov Cirsium incanum (S.G.Gmel.) Fisch. ex M.Bieb. Cirsium laevigatum Tausch Cirsium macrostylon (Moretti) Rchb. Cirsium mutatum Menyh. Cirsium neglectum Fisch. ex Spreng. Cirsium ochrolepidium Juz. Cirsium praealtum Cass. Cirsium ruthenicum Fisch. Cirsium setosum (Willd.) Besser ex M.Bieb. Cirsium sordidum Wallr. Cirsium stocksii Boiss. Cnicus arvensis (L.) Hoffm. Cnicus lanatus Willd. Cnicus macrostylus Moretti Cnicus neglectus Parish ex Greene Cnicus ruthenicus J.Henning Cnicus setosus (Willd.) Besser Cynara repens Stokes Serratula arvensis L. Serratula incana S.G.Gmel. Serratula setosa Willd.