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Barnyardgrass (Echinochloa crus-galli) is a clump-forming summer annual commonly found on fertile, damp soil. Leaves are 1 to 2 inches wide and 4 to 8 inches long. A distinct vein in the center of leaf blades is characteristic. Plants tend to be shallow-rooted, but roots can develop at the nodes when they contact the soil. Plants are very frost susceptible. 

Barnyardgrass growth habit (Schwartz, Colorado State University, growth habit.

(Photo: Howard F. Schwartz, Colorado State


Barnyardgrass inflorescence (Dewey, Utah State University, inflorescence.

(Photo: Steve Dewey, Utah State University,



  • Cultivate beds when plants are young.
  • Apply a grass-specific post-emergent herbicide (graminicide).


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