• Contact FCWP

  • Lander Office 307-332-1052
  • Lander Shop 307-332-3709
  • Riverton Office and Shop 307-856-2192
  • Dubois 307-240-0710
  • fcwp@wyoming.com

FCWP provides weed and pest management services to the residents of Fremont County, Wyoming, by applying integrated pest management practices that consider the environment, the economy and the well-being of our resources.

Weed I.D.

Designated and Declared Noxious Weeds

Noxious weeds are invasive plants that outcompete native vegetation and desirable forage, causing environmental or economic harm. Wyoming has 26 species of Designated Noxious Weeds and Fremont County has four county Declared Noxious Weeds. These legal designations give county weed and pest districts the funding and authority to manage these species.

Baby's BreathBlack HenbaneCanada Thistle


CheatgrassCommon BurdockCommon St. Johnswort


Common TansyDalmatian ToadflaxDiffuse Knapweed


Dyer's WoadField BindweedHoundstongue


Leafy SpurgeMusk ThistleOxeye Daisy


Perennial PepperweedPerennial SowthistlePlumeless Thistle


PuncturevinePurple LoosestrifeQuackgrass


Russian KnapweedRussian OliveSaltcedar


Scotch ThistleSkeletonleaf BursageSpotted Knapweed


Sulfur CinquefoilSwainsonpeaWhitetop


Yellow Toadflax

Watch List Weeds

Most species on the FCWP Watch List have not been detected in Fremont County, but are likely to arrive from nearby states or counties. Although not state designated or county declared, these species present a potential threat to our rangelands and wildlife habitats.

Austrian FieldcressCommon TeaselDame's Rocket


Field ScabiousInvasive HawkweedsMedusahead


Rush SkeletonweedTall ButtercupPalmer Amaranth



VentenataYellow StarthistleYellowflag Iris

Weed information from Weeds of the West, www.invasive.org and Fremont County Weed and Pest.

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