SOME COLORADO GRASSES. 
69 
STIPA SPARTEA (Trin). 
(Porcupine Grass.) 
Stems tufted, smooth, 2 to 3 feet high; leaves 6 to 10 
inches long, involute, long pointed, smooth; sheaths 
shorter than the nodes, loose, hairy on the margins; ligule 
very short, truncate erose; panicle slender, spicate, about 
1 foot long; branches in 5s, erect, appressed 1 to 3 inches 
long; outer glumes lanceolate, bristle pointed, the lower 
three-nerved, the upper five-nerved, rough on the keel; 
flowering glume villous bearded, especially at the acute 
callus and apex; awn 1 to 2 inches long, bent near the 
middle, short appressed, hairy below, scabrous above. 
This species occurs in the foothills and on the plains, 
along irrigating ditches. Stock seem to eat it only in 
winter. 
ANALYSIS. 
Moisture_ 9.00 
Ash_ 4.78 
Fat_ 2.46 
Albuminoid nitrogen__ _ 8.34 
Crude fiber_ 23.81 
Nitrogen-free extract_60.61 
Total_100.00 
STIPA MONGOLICA (Turez). 
Stems smooth, leafy to the panicle, purplish, wiry; 
leaves filiform, those of the culm 1 to 2' long, radical 3 to 
4' long; panicle purplish, 1 to 3' long; outer glume lan¬ 
ceolate, purplish, shining, glabrous, equaling the florets; 
flowering glume silky, hairy, especially at apex, terminat¬ 
ing in a twisted, (1 or 2) bent awn over V long. 
This appears to be a tufted, dry land grass, with the 
remains of many dead sheaths at base. 
