Species: 

Onopordum acanthium

Common Name: 

Scotch thistle

Systems Affected (standardized): 

disturbed/waste areas, cropland/pastureland, rangeland, urban/garden

Regions(s) present (updated by AB): 

PH

5563325-PPT.jpg
Impacts: 

Crowds out desirable forage. Damaged ecosystem services
Ecosystem change/ habitat alteration
Negatively impacts agriculture
Negatively impacts animal health
Negatively impacts tourism
Reduced amenity values
Reduced native biodiversity. Competition - monopolizing resources
Pest and disease transmission
Produces spines, thorns or burrs; Crowds out desirable forage. Damaged ecosystem services
Ecosystem change/ habitat alteration
Negatively impacts agriculture
Negatively impacts animal health
Negatively impacts tourism
Reduced amenity values
Reduced native biodiversity. Competition - monopolizing resources
Pest and disease transmission
Produces spines, thorns or burrs

Source? likely to be reintroduced: 

introduced to other countries either accidentally or deliberately as an ornamental plant. It is possible that O. acanthium spreads to new areas as a result of accidental transportation of contaminated agricultural products such as crop seeds, or deliberate introduction of achenes for producing ornamental plants. In the USA, achenes of this species are sold, each package containing 100 achenes for US$2.65 or flowering plants are sold in Canada for C$7.00; It is possible that O. acanthium spreads to new areas as a result of accidental transportation of contaminated agricultural products such as crop seeds, or deliberate introduction of achenes for producing ornamental plants. In the USA, achenes of this species are sold, each package containing 100 achenes for US$2.65 or flowering plants are sold in Canada for C$7.00

Info Blurb: 

Crowds out desirable forage. Introduced either accidentally or deliberately as an ornamental plant.

Native Regions in OK: 

NONE

Current and past designations: 

BS; OWL, WFHC

Present in OK?

Present in Bordering States?

OK, TX, NM, CO, KS, MO, AR, LA

Has Legal Status in BS?

AR NW, CO List B, NM Class A, MO NW