Some Common Invasive Plants in Wyoming

Houndstongue flowers. Houndstongue

Cheatgrass Cheatgrass 

Leafy Spurge Leafy Spurge 

Spotted Knapweed Spotted Knapweed 
Dalmation Toadflax Dalmation ToadflaxSalt Cedar Salt Cedar   
Musk Thistle Musk ThistleBlack henbane. Black Henbane

Hoary Cress (Whitetop) Whitetop (Hoary Cress)