P. Rodney Thompson
Director


Address:

 

829 South Coleman
Tooele, UT 84074

Telephone Number:


Main: (435) 843-3204

 

Hours:

7:00 am - 6:00 pm
Monday - Thursday
Except Holidays
Closed Fridays

Weed Control Division - Noxious Weeds


 

 

Yellow Starthistle
(Centaurea solstitialis L.)


Growth Habit:
Annual, erect, rigid branching stems.

Leaves:
Basal leaves deeply lobed, upper leaves not lobed, small, sharply pointed.

Stems:
Rigid, covered with a cottony fiber, to 30 inches tall, winged structures.

Flowers:
Yellow, terminal, flower bracts are tipped with straw-colored, 3/4 inch thorn.

Roots:
Taproot.

Seeds:
Smooth, light-colored, often darker mottled, 1/8 inch long, notched just above the base.

Other:
Causes "chewing disease" in horses.
Quackgrass

Return to Noxious Weed page.

 

 

Tooele County | 47 South Main Street | Tooele, UT 84074 | Telephone: (435) 843-3100