Some Common Invasive Plants in Wyoming

Black henbane. 




Black Henbane

Bull Thistle.
Bull Thistle
 

Canada Thistle.
Canada Thistle
   
Cheatgrass 




Cheatgrass
Dalmation Toadflax







Dalmation Toadflax

Dyer's Woad.





Dyer's Woad

   

Houndstongue flowers.






Houndstongue

Leafy Spurge






Leafy Spurge

Musk Thistle






Musk Thistle
   
Russian Olive. 
Russian Olive
Salt Cedar 






Salt Cedar    
Spotted Knapweed 






Spotted Knapweed 

Hoary Cress (Whitetop) 






Whitetop (Hoary Cress)