South and Central AZ Invasive Species

  • African Sumac

    African Sumac

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

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  • Buffelgrass

    Buffelgrass

    Buffelgrass is a warm-season perennial grass that has been introduced into the southwestern United States and other arid regions worldwide.

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  • Common Sow Thistle

    Common Sow Thistle

    Common Sow Thistle (Sonchus oleraceus) is believed to be native to Europe and has become an invasive species in various parts of the world, including…

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  • Fountain Grass

    Fountain Grass

    Fountain Grass (Pennisetum setaceum) In 2020, Fountain Grass was listed as an Arizona Noxious Weed. This prohibits its sale or import into the state. Native…

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  • Giant Reed

    Giant Reed

    Giant Reed (Arundo donax), believed to be native to the Mediterranean region, has become an invasive species in various parts of the world, including the…

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  • London Rocket

    London Rocket

    London Rocket (Sisymbrium irio) is believed to be native to the Mediterranean region and has become an invasive species in various parts of the world,…

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  • Malta Star Thistle

    Malta Star Thistle

    Malta Star Thistle (Centaurea melitensis) is believed to be native to the Mediterranean region and has become an invasive species in North America.

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  • Red Brome

    Red Brome

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

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  • Sahara Mustard

    Sahara Mustard

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

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  • Salt Cedar

    Salt Cedar

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

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  • Stinknet (Globe Chamomile)

    Stinknet (Globe Chamomile)

    Stinknet (Oncosiphon pilulifer) Stinknet, an invasive African annual weed that crowds out native plants and becomes a fire hazard in summer, currently spreading in Maricopa,…

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  • Tumbleweed

    Tumbleweed

    Tumbleweed, often referring to Russian Thistle in the context of invasive plants, is believed to have originated in Eurasia and has become an invasive species…

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