Barbed Goat Grass, Aegilops triuncialis


  • Rangeland and dry land crop invader
  • Dominates dry land pastures in California
  • Readily crosses with wheat, producing sterile seed and unmarketable wheat
  • Closely related to wheat, making selective control difficult in cereal crop production
  • When mature, it is unpalatable for livestock
  • In grasslands, it reduces the abundance of native perennial grasses and competes with desirable plants as well as native forbs
  • Highly invasive in the sheep grazing areas of northern California

Other problematic invasive weeds:

Giant Reed (Arundo donax)

Salt Cedar (Tamarisk ramosissima)

Perennial Pepperweed (Lepidium latifolium)

Yellow Starthistle (Centaurea solstitialis)

Tree of Heaven (Ailanthus altissima)

Purple Starthistle (Centaurea calcitrapa)