16 



WEED FLORA OF IOWA 



Barnyard Grass (Echinochloa crusgalli (L.) Beauv.). 



Desertion. — A coarse, ascending, leafy annual 1-5 ft. high, 

 with wide leaves ; spike 1-3 in. long, crowded in a dense panicle ; 



Fig. 7. Barnyard Grass (Echinochloa crusgalli). Fields, barnyards and road- 

 sides. 

 (Photographed by Hart.) 



1_!_J J. 



Fig. 7-A. Distribution of Barnyard Grass. 



