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Vegetation Management




G A R F I E L D    C O U N T Y,   C O L O R A D O

Vegetation Management

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Diffuse Knapweed

Diffuse Knapweed

(Centaurea diffusa)

diffuse knapweed flower
Eric Coombs, Oregon Department of Agriculture, Bugwood.org
diffuse knapweed plant
K. George Beck and James Sebastian, Colorado State University, Bugwood.org

Diffuse knapweed was introduced from Europe and is a biennial or short-lived perennial forb which reproduces only by seed. The plant usually produces a single main multi-branched stem that is 1.5 to 2 feet tall. The flower is white or pink with bracts.

The largest infestation in Garfield County can be found west of the Riverbend subdivision southeast of New Castle. It is also scattered along Interstate 70 between Rifle and Parachute, south of Glenwood Springs at the Glenwood Airport, and throughout the old rodeo grounds and Rifle Creek Golf Course.

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Vegetation Management

Garfield County Vegetation Management


195 West 14th Street, Building D, Suite 310
Rifle, CO 81650
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Email Vegetation Management

970-945-1377, ext. 4305 | phone
970-625-5939 | fax

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Top photo by Todd Patrick.
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