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Photo by Chris Schnepf, University of Idaho, Bugwood.org


Hawkweed oxtongue

(Picris hieracioides)

 

Description:
Height: 30-140 cm. Plant very variable in forms. Budding from roots.

Stem erect, furrowed, branched, stiffly hairy.

Leaves basal in rosette. Leaves lanceolate, toothed, short-stalked below, sessile and slightly amplexicaul above, covered with short hairs often forked at the apex into hooked branches (rough and hooking), dull-green.

Flowers yellow, ligulate, in heads arranged in corymb -like. Involucral bracts, narrow, not bristly but somewhat hooked.

Fruit : achene reddish-brown, 3-5 mm long, with fine interrupted transverse wrinkles; beak very short with a deciduous pappus of feathery hairs.

Biological type: biennial.

 

  • Mechanical: Not Known
  • Biological: Not Known
  • Herbicide: Not Known

For More Information:
Detailed information about Hawkweed orange is available at the Washington State Noxious Weed Control Board Web Site.

 

 

 

 


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