Species: 

Rhaponticum repens (=Acroptilon repens )

Common Name(s): 

Russian knapweed, hardheads 

Habitats Impacted: 

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

Regions likely to be Impacted: 

PH, NE, NW, SE, SW

Present in Neighboring States?

CO, KS, MO, NM, TX

Currently known from Oklahoma?

Yes

Rhaponticum repens (=Acroptilon repens )

Steve Dewey, Utah State University, Bugwood.org

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What you should know!

Crowds out native species and desirable forage. Can form monocultures. Toxic to horses. Easily spread in contaminated crop seeds. Introduced as a seed contaminant.

Management information