G57 



ARIZONA FESCUE 



Festu'ca arizo'nica, syn. F. ovi'na arizo'nica 



Flower head (panicle) narrow, 3 to 5} in. long, 

 with alternate, rough, erect branches 



Stalks (ciiliiis)- densely tufted from a perennial 

 base", 4 in. to 3 ft. high, slender and curved at 



Leaves mostly basal, very numerous, C to 12 

 in. lonir, rough, still', slender, inrolled, appear- 

 ing almost round ; basal sheaths about 4 in. long, 

 becoming flattened in age 





Outer flower bract (lemma) about }', in. long, 

 thick, tapering, obscurely 5-nerved, with short 

 bristle (awn) about Ms in. long 



Individual flower groups (spikelets) 4- to (>- 

 flowercd, erect, linear-lance-sliaped, about ) in 

 long 



Lowest (2) spikelet bracts (glumes) unequal; 

 1st, 1- to 3-nerved, shorter than the 3- to 5- 

 nerved 2d glume 



