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WY CAPS Progrram

University of Wyoming

Dept. Ecosystem Science & Management: 3354

1000 East University Ave.

Laramie, WY 82071

Phone: (307)766-5278

Email: caps@uwyo.edu

Pest Information: Summaries & Maps

Wyoming Cooperative Agricultural Pest Survey

Plants as Pests

Select a pest to access information and maps

  • Absinth wormwood (Artemisia absinthium)
  • Austrian fieldcress (Rorippa austriaca)
  • Baby's breath (Gypsophila paniculata)
  • Black henbane (Hyoscyamus niger)
  • Black medic (Medicago lupulina)
  • Broom snakeweed (Gutierrezia sarothrae)
  • Buffalobur (Solanum rostratum)
  • Bull thistle (Cirsium vulgare)
  • Bur buttercup (Ranunculus testiculatus)
  • Canada thistle (Cirsium arvense)
  • Cheatgrass (Bromus tectorum)
  • Chicory (Cichorium intybus)
  • Common burdock (Arctium minus)
  • Common cocklebur (Xanthium strumarium)
  • Common crupina (Crupina vulgaris)
  • Common mullein (Verbascum thapsus)
  • Common purslane (Portulaca oleracea)
  • Common sunflower (Helianthus annuus)
  • Common tansy (Tanacetum vulgare)
  • Curlycup gumweed (Grindelia squarrosa)
  • Curly dock (Rumex crispus)
  • Cypress spurge (Euphorbia cyparissias)
  • Dalmatian toadflax (Linaria dalmatica)
  • Dames rocket (Hesperis matronalis)
  • Diffuse knapweed (Centaurea diffusa)
  • Distaff thistle (Carthamus lanatus)
  • Downy brome (Bromus tectorum)
  • Dyers woad (Isatis tinctoria)
  • Eurasian Watermilfoil (Myriophyllum spicatum)
  • Field bindweed (Convolvulus arvensis)
  • Field dodder (Cuscuta campestris)
  • Field scabious (Knautia arvensis)
  • Flixweed (Descurainia sophia)
  • Foxtail barley (Hordeum jubatum)
  • Goatsrue (Galega officinalis)
  • Golden pea (Thermopsis rhombifolia)
  • Gorse (Ulex europaeus)
  • Great plains yucca (Yucca glauca)
  • Hairy goldenaster (Heterotheca villosa)
  • Halogeton (Halogeton glomeratus)
  • Hoary alyssum (Berteroa incana)
  • Hoary cress (Cardaria draba)
  • Houndstongue (Cynoglossum officinale)
  • Iberian starthistle (Centaurea iberica
  • Italian thistle (Carduus pycnocephalus)
  • Japanese knotweed (Fallopia japonica)
  • Jointed goatgrass (Aegilops cylindrica)
  • Kochia (Kochia scoparia)
  • Lady's bedstraw (Galium verum)
  • Lanceleaf sage (Salvia reflexa)
  • Leafy spurge (Euphorbia esula)
  • Locoweed (Oxytropis sericea)
  • Longspine sandbur (Cenchrus longspinus)
  • Marsh sowthistle (Sonchus arvensis)
  • Meadow deathcamas (Zigadenus venenosus)
  • Meadow knapweed (Centaurea pratensis)
  • Medusahead (Taeniatherum caput-medusae)
  • Mountain thermopsis (Thermopsis montana)
  • Musk mustard (Chorispora tenella)
  • Musk thistle (Carduus nutans)
  • Myrtle spurge (Euphorbia myrsinites)
  • Orange hawkweed (Hieracium aurantiacum)
  • Oxeye daisy (Chrysanthemum leucanthemum)
  • Perennial pepperweed (Lepidium latifolium)
  • Perennial sowthistle (Sonchus arvensis)
  • Plains larkspur (Delphinium geyeri)
  • Plains pricklypear (Opuntia polyacantha)
  • Plumeless thistle (Carduus acanthoides)
  • Poison hemlock (Conium maculatum)
  • Prairie sagewort (Artemisia frigida)
  • Puncturevine (Tribulus terrestris)
  • Purple loosestrife (Lythrum salicaria)
  • Purple starthistle (Centaurea calcitrapa)
  • Quackgrass (Elymus repens)
  • Redstem filaree (Erodium cicutarium)
  • Rush skeletonweed (Chondrilla juncea)
  • Russian knapweed (Acroptilon repens)
  • Russian olive (Elaeagnus angustifolia)
  • Russian thistle (Salsola tragus)
  • St. Johnswort (Hypericum perforatum)
  • Saltcedar (Tamarix ramosissima)
  • Scentless chamomile (Tripleurospermum perforatum)
  • Scotch broom (Cytisus scoparius)
  • Scotch thistle (Onopordum acanthium)
  • Showy milkweed (Asclepias speciosa)
  • Silky crazyweed (Oxytropis sericea)
  • Skeletonleaf bursage (Ambrosia tomentosa)
  • Spotted knapweed (Centaurea maculosa)
  • Squarrose knapweed (Centaurea virgata var. squarrosa)
  • Sulfur cinquefoil (Potentilla recta)
  • Swainsonpea (Sphaerophysa salsula)
  • Syrian beancaper (Zygophyllum fabago)
  • Tall larkspur (Delphinium occidentale)
  • Tamarisk (Tamarix ramosissima)
  • Tansy ragwort (Senecio jacobaea)
  • Teasel (Dipsacus fullonum)
  • Two-grooved milkvetch (Astragalus bisulcatus)
  • Venice mallow (Hibiscus trionum)
  • Viper's bugloss (Echium vulgare)
  • Wavyleaf thistle (Cirsium undulatum)
  • Western sticktight (Lappula occidentalis)
  • Western water hemlock (Cicuta douglasii)
  • Wild four-o'clock (Mirabilis nyctaginea)
  • Whitetop (Cardaria draba)
  • Wild licorice (Glycyrrhiza lepidota)
  • Wild oat (Avena fatua)
  • Wyeth lupine (Lupinus wyethii)
  • Yellow hawkweed (Hieracium pratense)
  • Yellow starthistle (Centaurea solstitialis)
  • Yellow toadflax (Linaria vulgaris)

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