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barbed goatgrass (aegilops triuncialis L.)
 PLEASE CALL 1-866-INVADER IF YOU SUSPECT YOU HAVE FOUND THIS SPECIES
 
USDA Symbol: AETR

ODA rating: A
Barbed goatgrass risk assessment
Noxious weed listing process


Distribution
Oregon barbed goatgrass distribution

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Images courtesy of Ken French, Oregon Dept. of Agriculture

 
 
If images are downloaded and used from the ODA web site please be sure to credit the photographer.
 
Description
Annual; grows 8 to 16 inches tall with few to many culms. Leaf sheaths contain white hairs when young, becoming more or less smooth once matured. The blades are rigid, sharp, pointed, and spreading. Grain 1/4 inch long, resembling a wheat kernel. 

Impacts
Barbed goatgrass is a rangeland and dry land crop invader. This species, aside from dominating dryland pastures in California, readily crosses with wheat, producing sterile seed and unmarketable wheat. Aegilops spp. are closely related to wheat, making selective control of goatgrass difficult in cereal crop production.When mature, it is unpalatable for livestock. In grasslands, it reduces the abundance of native perennial grasses and competes with desirable plants as well as native forbs.  Research refers to this plant being used in wheat breeding programs worldwide for specific characteristics. It is highly invasive in the sheep grazing area of northern California.
 
Distribution
First documented site in Oregon 2003 in Josephine County. 
 
For a collection of spatial information on the distribution of this plant in Oregon go to Oregon WeedMapper.


Biological controls
Biological control agents are not used on "A" listed weeds in Oregon. This weed is being managed for eradication or containment.