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Picture key - unbranched flowering head - without prominent awns or bristles
Common
   
Go to quackgrass
Elymus repens
  Go to annual ryegrass
Lolium multiflorum
  Go to poverty dropseed
Sporobolus vaginiflorus
Common
   
Go to darnel ryegrass
Lolium temulentum
  Go to western wheatgrass
Pascopyrum smithii
  Go to perennial ryegrass
Lolium perenne
Common
 
Go to puffsheath dropseed
Sporobolus neglectus
  Go to side-oats grama
Bouteloua curtipendula
Uncommon
 
Go to awnless wildrye
Elymus submuticus
  Go to slender wheatgrass
Elymus trachycaulus
Rare
 
Go to crested wheatgrass
Agropyron aff. cristatum
  Go to hidden dropseed
Sporobolus clandestinus
Rare
 
Go to intermediate wheatgrass
Thinopyrum intermedium
  Go to tall wheatgrass
Thinopyrum ponticum
Rare
Go to saltgrass
Distichlis spicata
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