29G 



GRASSES OF IOWA. 

 DESCRIPTION. 



Soft Chess. An erect, usually slender, pubescent annual, i to 3 

 feet (2-6 dm.) high, with flat leaves, and contracted panicles, 1 to 3 

 inches (2-6 cm.) long. Spikelets three to eight-flowered. -\ to 1 inch 

 (1.5-2 cm.) long, with pubescent glumes, the flowering ones 3} to 4/, 



Pro. 207. Bromus hordeaceus— Fig. 208. Brotnus hordeacevs var. glabrescens—a 



a, empty or outer glumes ;b, flower- spikelet; b, floret ; c, flowering glume; d, palet ; e, fruit. 



ing glumes; c, palet. (Div. Agros. (Charlotte M. King ) 

 U. S. Dept. Agrl. 



lines (7-9 mm.) long, obtuse and awned. Awns 3 to 4 lines (6-8 mm.) 

 long. In fields and waste places throughout the state. May to August. 

 introduced grass along railroads and in streets of cities. Nearly 

 worthless as a forage plant. 



