SO 
19. 
Bi): 
a9 
A Handbook of Nebraska Grasses. 
ARISTIDA. 
Aristida basiramea. Tufted Triple Awn. (Fig. 44.) 
An erect, tufted, much-branched perennial common in 
the Sand Hill region. 
Aristida gracilis. Slender Beard Grass. (Fig. 45.) 
A slender tufted annual of northern Nebraska. 
Aristida longiseta. Dog Town Grass. (Fig. 44.) 
A slender densely tufted, wiry perennial found in dry 
soils in western Nebraska. 
Aristida oligantha. Prairie Triple Awn. (Fig. 45.) 
In poor dry soil over most of the State. 
Aristida purpurea. Purple Beard Grass. (Fig. 45.) 
A common perennial prairie grass thruout the State. 
Aristida tiuberculosa. Wong-awned Poverty Grass. (Fig. 
44.) 
A rigid. much-branched perennial in dry sandy soil. 
Kearney County. 
ARRHENATHERUM. 
Arrkhenatherwm elatius. Tall Oat Grass. (Fig. 56.) 
This is a tall loosely-tufted perennial which makes an 
early growth, thus rendering it of some value in pastures. 
It grows rapidly and is very drouth-resistant. It does not 
form a good sod and must therefore be sown with other 
species. 
AVENA. 
Avena fatua. Wild Oats. (Fig. 56.) 
This is an erect glabrous annual found in waste places. 
It is generally regarded as a serious weed pest—particu- 
larly since its stiff twisted awns are rather troublesome to 
stock. 
BECKMANNIA. 
Beckmannia crucaeformis. Slough Grass. (Fig. 62.) 
A stout, tall. erect. coarse perenmal growing in tufts 
along river banks and irrigation ditches. When young it 
is readily eaten by stock. It is particularly well adapted 
for low irrigated alkaline soils. Common in~- western 
Nebraska. 
BOUTELOUA. 
Bouteloua curtipendula, Tall Grama Grass. (Fig. 61.) 
A tall densely tufted perennial with tough perennial 
roots. The hav is readilv eaten by stock, which, however, 
