Central AZ

Salt Cedar (Tamarix spp.) is native to Eurasia and has become an invasive species in various parts of North America.

Sahara Mustard (Brassica tournefortii) is believed to have originated in North Africa and has become an invasive species in parts of North America.

Red Brome is considered a problem due to its rapid growth, prolific seed production.

Also known as African tallowwood or simply Sumac, is an invasive plant species that has been causing ecological concerns in the southwestern United States.