Contact
412 W Pacific St.
Blackfoot, Idaho
83221
(208) 782-3876
Fax: (208) 782-3193

Weed Department
Idaho State Noxious 
Weed Law
Plumeless Thistle



  Description:

General Description: It is an upright, spiny, biennial growing up to 8 feet tall.

Flower Description: Flowers are solitary or in clusters of 2 to 3 flower heads with reddish purple flowers.

Leaf Description: Dark green leaves are deeply lobed to compound with hair on the undersides and spines along the leaf margins.

Stem Description: Stems are tough and have spiny wings.

Fruit/Seed Description: Seeds (achenes) are smooth and hairless.

 

Interesting Facts:

Plumeless thistle invades pastures, meadows, and fields crowding out desirable forage plants. Livestock will not graze in areas heavily infested with plumeless thistle.

 

                           
 
Weed
Department

 

 

 

DIRECTORY      VISITORS      BUSINESS      EMPLOYMENT      NOTICES