Common Names: Plumeless Thistle, Spiny Plumeless Thistle
Scientific Name: Carduus acanthoides L.
Efforts must be made to prevent seed maturation and dispersal of plants into new areas. Additionally, no transportation, propagation, or sale of these plants is allowed. Failure to comply may result in enforcement action by the county or local municipality. Minnesota Noxious Weed Law.
Plumeless thistle is found growing in a wide range of habitats, most commonly found in disturbed areas along road, trail, and railroad rights-of-way, pastures, rangeland, gravel pits, vacant lots, and field edges. It also aggressively invades natural areas and landscape restorations.
Plumeless thistle is commonly found throughout the western counties and northern half of the state with the largest populations in the central, north-central, and northwestern parts. View plumeless thistle distribution in Minnesota.
Plumeless thistle is highly invasive to disturbed habitats and can quickly replace desirable plants, creating large monocultures that significantly lessen the biological diversity and productivity of native landscapes. It is a common pasture weed that reduces the availability of desirable forages leading to the economic hardships for livestock producers.
MDA Noxious Weed Program
County Ag Inspectors
Minnesota Department of Agriculture (MDA), 625 Robert Street N, St. Paul, MN 55155-2538, email@example.com