50 



WEED FLORA OF IOWA 



Fig. 27-A. Distribution of Cheat or Chess. 



NATURAL CONDITION. 



WATER FREE SUBSTANCE. 



9.59 

 3.57 



13.17 



(9.42) 

 (7.44) 



44.04 

 37.03 



10.63 

 7.91 



22.57 

 41.83 



There is considerable nourishment in the nutritive suhstance 

 when the plant is young, but when old it can not be considered 

 very nutritious. 



Downy Brome Grass (Bromus tectorum L.). 



Description. — A slender, erect, leafy annual. 7-25 in. high, with 

 narrow, softly pubescent leaves, and open, nodding panicles, 3-lVo 

 in. long; spikelets 5-8-flowered, with unequal, acuminate-pointed, 

 hirsute, empty glumes, and rough or hirsute flowering glumes, 4-6 

 lines long; awns 6-8 lines long. 



Distribution. — Common in waste places, Rocky mountains and 

 the Pacific coast, Atlantic states, Maine to Iowa. Not abundant in 

 Iowa. 



