Species: 

Cirsium vulgare

Common Name: 

bull thistle

Systems Affected (standardized): 

cropland/pastureland, rangeland, riparian/aquatic, disturbed/waste areas, forest/woodland

Regions(s) present (updated by AB): 

PH, NE, NW

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Impacts: 

can form dense thickets, displacing other vegetation. The spiny nature of the plant renders it unpalatable to wildlife and livestock and reduces the forage potential of pastures.

Source? likely to be reintroduced: 

It is possible that C. vulgare spreads to new areas as a result of accidental transportation of contaminated agricultural produce such as crop seeds or fodder, or deliberate introduction of cypselas as ornamental plants

Info Blurb: 

Can form dense thickets, displacing other vegetation. Reduces the forage potential of pastures. Can spread to new areas via contaminated agricultural products.

Native Regions in OK: 

NONE

Current and past designations: 

KS, NM, OKPS, TX

Present in OK?

Yes

Present in Bordering States?

TX, NM, CO, KS, MO, LA

Has Legal Status in BS?

AR NW, CO List B, NM Class B