DESCRIPTIVE MANUAL 



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Chemical Composition. — Various analyses have been reported 

 from Washington, D. C, Mississippi, South Dakota and Iowa. The 

 following analyses are given by Dr. Weems : 



Fig. 8-B. Pigeon Grass (Setaria glauca) ; a, portion of leaf showing ligule ; b, 

 spikelet with bristles ; c, spikelet ; d, spikelet with first, second, and third 

 glumes ; e, spikelet showing flowering glume and sterile glume ; f, flower 

 opened showing stamens and pistil. 



Fig. 8-A. Distribution of Pigeon Grass. 



