Washington Flora Checklist
A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium
 

Checklist » Asteraceae » Cirsium arvense

Cirsium arvense (L.) Scopoli [FNA19]
Asteraceae
Canadian thistle

Origin: Introduced from Eurasia

Voucher:WTU (view specimen records)

Notes: Kz99, Cronquist & Chambers and Sundberg (2000) lump the vars., H&C, Stace (1997) & BC recognize them.

Literature:
(none)
Photo © G. D. Carr
(from WTU Image Collection)

Taxon treatment authored by David Giblin; last updated 1/9/2008 by David Giblin
Synonyms
Cirsium arvense (L.) Scop. var. arvense
Cirsium arvense (L.) Scop. var. horridum Wimm. & Grab.
Cirsium arvense (L.) Scop. var. mite Wimm. & Grab.




© 2010 University of Washington Herbarium,
Burke Museum of Natural History and Culture.
All Rights Reserved.
Box 355325, University of Washington,
Seattle, WA 98195-5325.