A Handbook of Nebraska Grasses. ‘)] 
POA. 
112. Poa annua. Low Spear Grass. (Fig. 85.) 
A low spreading, introduced annual weed which has 
made its appearance in eastern Nebraska. 
113. Poa compressa, Canada Blue Grass. (Fig. 86.) 
This is a slender perennial of bluish-green foliage often 
confounded with the genuine Kentucky Blue Grass from 
which it may be distinguished by its tlattened, decumbent. 
wiry stems, shorter leaves and shorter, narrower and 
smaller panicles. It it adapted to somewhat more sterile 
soil than Kentucky blue grass, but on the whole it is 
scarcely to be recommended for Nebraska. Thruout the 
State but not common. 
114. Poa nemoralis. Spear Grass. (Fig. S87.) 
A tufted, erect, perennial grass of western Nebraska. 
115. Poa pratensis. Kentucky Blue Grass. (Fig. 87.) 
This is a well-known perennial grass native of parts of 
North America and now much grown as a pasture grass. 
it is in fact the champion pasture grass of the limestone 
region of Tennessee and Kentucky. With us it is uni- 
versally employed as a lawn grass where it makes a firm 
sod. It is better adapted for use in pastures than as a 
hay crop. However, it is a shallow-rooted plant. not at all 
suited to drouthy conditions. 
POLYPOGON. 
116. Polypogon monspeliensis. Beard Grass. (Fig. 34.) 
An introduced plant in fields and waste places. Kearney 
County. 
PUCCINELLIA. 
117. Puccinellia airoides. (Fig. 76.) 
A tufted perennial in alkali soil. Chevenne, Dawes, and 
Sioux Counties. 
REDFIELDIA. 
11 
v0 
. Redfieldia fleruosa. Blow-out Grass. (Fig. 68.) 
This is a stout perennial native to the sandy soils of 
the West. Its deeply penetrating and widely spreading 
rootstocks render it the sand-binding grass par excellence. 
It is in fact a typical blow-out grass well worthy of tria! 
where drifting sand becomes troublesome. A common 
grass thruout the Sand Hill region. 
