Scotch Thistle

Photo of Scotch Thistle.(a.k.a. Onopordum aeanthium)

Distinguishing Features

  • Reaches 8 to 10 feet in height
  • Stems are erect, branching sharp spiny leaf wings extend down to stem
  • Basal leaves may be over 2 feet long and 1 foot wide
  • Leaves are coarsely lobed; fine, dense hair on both sides; sharp spines on margin
  • Flowers are violet to reddish, 1 to 2 inches in diameter; solitary and numerous

Crimes Committed

  • Choking & the deliberate takeover of native plants
  • Stealing lands, homes & food from wildlife
  • Corrupting & invading open lands, roadsides & recreation areas
  • Costing a bundle for taxpayers to control
  • Wreaking havoc & mayhem on innocent, unsuspecting ecosystems

Join the Invasive Weed Patrol

  • Help stop the spread of this weedy, seedy, desperado
  • Report any sightings to local land managers or rangers
  • Remove all weed seeds from clothing, shoes, pets, camping gear & tire treads

Your Reward

  • Healthy Ecosystems on Your Public Lands




https://www.fs.usda.gov/detail/ashley/learning/nature-science/?cid=stelprdb5279839