State Designated Species List

State of WY Designated Noxious Weeds (W.S. 11-5-102 (a)(xi)

1. Field bindweed (Convolvulus arvensis L.)
2. Canada thistle (Cirsium arvense L.)
3. Leafy spurge (Euphorbia esula L.)
4. Perennial sowthistle (Sonchus arvensis L.)
5. Quackgrass (Agropyron repens (L.) Beauv.)
6. Hoary cress (whitetop) (Cardaria draba and Cardaria pubescens (L.) Desv.)
7. Perennial pepperweed (giant whitetop) (Lepidium latifolium L.)
8. Ox-eye daisy (Chrysanthemum leucanthemum L.)
9. Skeletonleaf bursage (Franseria discolor Nutt.)
10. Russian knapweed (Centaurea repens L.)
11. Yellow toadflax (Linaria vulgaris L.)
12. Dalmatian toadflax (Linaria dalmatica (L.) Mill.)
13. Scotch thistle (Onopordum acanthium L.)
14. Musk thistle (Carduus nutans L.)
15. Common burdock (Arctium minus (Hill) Bernh.)
16. Plumeless thistle (Carduus acanthoides L.)
17. Dyers woad (Isatis tinctoria L.)
18. Houndstongue (Cynoglossum officinale L.)
19. Spotted knapweed (Centaurea maculosa Lam.)
20. Diffuse knapweed (Centaurea diffusa Lam.)
21. Purple loosestrife (Lythrum salicaria L.)
22. Saltcedar (Tamarix spp.)
23. Common St. Johnswort (Hypericum perforatum)
24. Common Tansy (Tanacetum vulgare)
25. Russian olive (Elaeagnus angustifolia)
26. Black Henbane (Hyoscyamus Niger L.)      
27. Common Mullein (Verbascum thapsus L.)
28. Yellow starthistle (Centaurea solstitialis L.)
29. Ventenata (Ventenata dubia (Leers) Coss.)
30. Medusahead rye (Taeniatherum caput-medusae (L.) Nevski)   
31. Palmer amaranth (Amaranthus palmeri)