34 



CIRCULAR 491, U. S. DEPARTMENT OF AGRICULTURE 



were eaten readily. The seeds are high in viability and under favor- 

 able conditions germinate soon after they shatter and fall to the 

 ground. The species reseeds itself readily. Little is known about the 

 winter hardiness of this grass. Most species from South Africa are 

 unable to withstand lowest temperatures at this latitude. Although 

 it winter-killed completely at Colorado Springs, Colo., it survived 

 sparingly during a mild winter at Lincoln, Nebr., and has survived 

 winters at Woodward, Okla., Tucson, Ariz., and Tyler, Tex. Reports 

 from Australia (39) state that this grass is very drought-resistant 

 under semiaricl conditions in that country. 



% 



Figure 18. — Typical plant of weeping lovegrass at Woodward, Okla. The bi- 

 colored sections on rule are 3 inches long. 



CRESTED WHEATGRASS AND SMOOTH BROME (BROMEGRASS) 



Crested wheatgrass and smooth brome (bromegrass) have proved to 

 be extremely drought-resistant and well adapted to the northern Great 

 Plains (51, 71), but they are unable satisfactorily to withstand high 

 temperatures combined with drought in most of the southern Plains. 

 They are considered fairly promising in the foothills and high moun- 



