460 
90. Triticum Repens. Linnaeus. 
Stn. —Triticum pauciflorum/jSchw. Agropyron repens, Beauv. Couch- 
grass, Quitch-grass. 
Rhizoma creeping extensively; spikelets four to eight-flowered; glumes five 
to seven nerved; rachis rough on the angles; awn none, or never more than 
half the length of the flower; leaves flat, roughish, or hairy above. Borders 
of woods and openings. Perennial; flowers in June and July. Culms 1 to 3 
feet high. Wisconsin, Michigan, Ohio, Iowa and Minnesota, and about Lake 
Superior. 
A mere weed, of no use for food of cattle, <fec. Its disposition to spread 
should be checked, or it may hereafter become troublesome to the farmer. 
Professor Emmons* has analyzed the ash of this grass when in its young 
state (about 11 inches high, cut May 1st,) and again just previous to the ap¬ 
pearance of the flower heads. We give the results below in two parallel 
columns, for more ready comparison. 
Silica....... 
Young. 
Old. 
40.500 
Silicic acid___ 
. 27.150 
Phosphates. 
. 17.250 
15.300 
Lime. 
. 0.112 
0 959 
Magnesia. 
none 
Potash. 
. 7.350 
24.417 
Soda. 
. 26.785 
1.433 
Sodium. 
. 3.565 
Chloride of Sodium. 
3.706 
Chlorine.. 
. 5.425 
Sulphuric acid....___ 
. 4.811 
Carbonic acid. 
. 1.455 
a trace 
Coal. 
% 
9.300 
Organic acids.. 
. 5.200 
Organic matter. 
2.400 
Loss. 
-. ' 0.897 
1.985 
100.000 
100.000 
91. Triticum Caninum. Linnceus. 
Syn. —Agropyron caninum, Roem & Shultz. 
Roots fibrous (no rhizoma); spikelets four or five-flowered; glumes three- 
nerved; rachis bristly on the edges; awn longer than the flower; leaves flat, 
*Ag. of N. Y., vol. 2, p. 74 and 75. 
