Perennial Pepperweed, Lepidium latifolium


  • Highly invasive herbaceous perennial
  • Can invade a wide range of habitats including riparian areas, wetlands, marshes, and floodplains
  • Adapts readily to natural and disturbed wetlands
  • Displaces native plants and animals
  • Impacts alfalfa and pasture production

Other problematic invasive weeds:

Giant Reed (Arundo donax)

Salt Cedar (Tamarisk ramosissima)

Yellow Starthistle (Centaurea solstitialis)

Barbed Goat Grass (Aegilops triuncialis)

Tree of Heaven (Ailanthus altissima)

Purple Starthistle (Centaurea calcitrapa)