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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

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

More Images:

https://www.invasive.org/browse/subthumb.cfm?sub=2792

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

https://extension.okstate.edu/fact-sheets/thistles-in-oklahoma-and-their-identification.html

Dandelion Fields

Additional Online Resources for:

Cirsium arvense

Species Overview

https://www.invasive.org/browse/subinfo.cfm?sub=2792

Distribution Map

https://www.eddmaps.org/distribution/viewmap.cfm?sub=2792

iNaturalist Records in Oklahoma

https://www.inaturalist.org/observations?place_id=12&subview=map&taxon_id=60132

iNaturalist Records in North America

https://www.inaturalist.org/observations?place_id=97394&subview=map&taxon_id=60132

Herbarium Records

https://portal.torcherbaria.org/portal/collections/list.php?taxa=Cirsium+arvense&usethes=1&taxontype=2

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