Noxious Weeds Program
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
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