Oklahoma Noxious Weeds

Consumer Protection Services Division. 2020. Summary of Plant Quarantine Regulations. Oklahoma Department of Agriculture, Food, and Forestry.

https://nationalplantboard.org/wp-content/uploads/docs/summaries/oklahoma.pdf

Subject Name Scientific Name Family Order
Canada thistle Cirsium arvense (L.) Scop. Asteraceae Asterales
musk thistle, nodding thistle Carduus nutans L. Asteraceae Asterales
Scotch thistle Onopordum acanthium L. Asteraceae Asterales