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SOME COLORADO GRASSES. 
AGROPYRUM GLAUCUM (R. & S.). 
(Colorado Blue Stem.). 
Stems 10 to 30 inches high, erect, rigid, smooth; 
cauline leaves about four; sheaths as long as the inter- 
nodes below, shorter than the internodes above, smooth ; 
ligule short, truncate; blades 4 to 6 inches long, smooth 
below, scabrous above, hat or involute for half the length ; 
the whole plant has a characteristic bluish-green color; 
spikes 2 to 5 inches long; spikelets compressed, arranged 
in two rows; hat side to the rhachis, five to eight- 
flowered ; empty glumes nearly equal, lower three-nerved, 
upper, three or obscurely five-nerved, lanceolate, acumi¬ 
nate ; flowering glume hve-nerved, oblong, tipped with a 
short awn, scarious margined ; palet two-nerved, hyaline, 
bifid, nearly equaling the glume. 
This grass abundant on the prairies and in the 
mountains. In the higher mountain meadows it makes 
but small growth. On lower land and along streams it 
grows vigorously, and in many places is cut for hay. 
Stockmen speak highly of it. 
