SWVMA

Diffuse Knapweed is considered a problem due to its aggressive growth, rapid spread, and ability to outcompete native vegetation.

Fuller's Teasel (Dipsacus fullonum), a striking and yet invasive plant species, has become a growing concern in the southwestern United States.

Leafy Spurge (Euphorbia esula) is native to Europe and Asia and has become an invasive species in North America.

Russian Knapweed is considered a problem due to its aggressive growth, rapid spread, and the ability to form dense stands, displacing native vegetation and impacting ecosystems.

Russian Olive is considered a problem due to its aggressive growth, rapid spread, and the ability to form dense stands, displacing native vegetation and altering ecosystems.

Scotch Thistle (Onopordum acanthium) is native to Eurasia and has become an invasive species in various parts of North America.

Siberian Elm (Ulmus pumila) is native to Asia and has become an invasive species in various parts of North America.

Spotted Knapweed (Centaurea stoebe) is native to Eurasia and has become an invasive species in North America.

Yellow Starthistle (Centaurea solstitialis) is native to the Mediterranean region and has become an invasive species in North America.