Species: 

Cirsium arvense

Common Name(s): 

Canada thistle, Californian thistle, creeping thistle, field thistle

Habitats Impacted: 

cropland/pastureland, rangeland

Regions likely to be Impacted: 

PH

Present in Neighboring States?

CO, KS, MO, NM, TX

Currently known from Oklahoma?

Yes

Cirsium arvense

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

More Images:
What you should know!

Crowds out native species. Reduces crop and forage yields.Can spread from contaminated seed, irrigation channels, or living organisms.

Management information