Species: 

Centaurea solstitialis

Common Name: 

yellow star thistle

Systems Affected (standardized): 

forest/woodland, rangeland

Regions(s) present (updated by AB): 

SE

5563325-PPT.jpg
Impacts: 

can displace native plants, reduce native wildlife habitat and forage, decrease native plant and animal diversity, limit access to recreational areas, and reduce land value. Dense infestations of yellow starthistle can fragment sensitive plant and animal habitat. deplete soil moisture reserves and alter the water cycle in annual grassland and foothill woodland ecosystems. toxic to horses, causing a neurological disease called equine nigropallidal encephalomalacia, or "chewing disease"

Source? likely to be reintroduced: 

A major risk for introduction of C. solstitialis is through contaminated seeds

Info Blurb: 

Can displace native species, decreasing biodiversity and reducing wildlife habitat and forage.
Dense infestations can deplete soil moisture reserves and alter the water cycle in some ecosystems. Introduced through contaminated seeds.

Native Regions in OK: 

NONE

Current and past designations: 

BS, KS, NM

Present in OK?

Yes

Present in Bordering States?

TX, NM, CO, KS, MO

Has Legal Status in BS?

CO List A, NM Class A