G30 



HAIRY GRAMA 



Boutelou'a hirsu'ta 



Flower heads (racemes) up- 

 right, of 1 to 4 flower groups 

 (spikes) 



Spikes purplish, % to 1 % in.Iong, 

 hairy, with the central axis 

 (rachis) conspicuously prolonged 



Stalks (culms) unbranched, 

 rather rigid, 4 to 30 in. high, 

 hairless 



Individual flower groups (spike- 

 lets) numerous, 2-flowered, 

 crowded in 2 rows like the teeth 

 of a comb on one side of the 

 rachis; lower flower perfect, 

 stalkless; upper flower imper- 

 fect, stalked 



Outer flower bract (lemma) 

 of perfect flower hairy, 3- 

 toothed, the teeth somewhat 

 bearded 



Imperfect flower (rudiment) 

 reduced to 3 equal, stiff bristles 

 and about 2 bracts, hairless at 

 base 



Lowest (2) spikelet bracts 

 (glumes) unequal, the 2d 

 longer and with long, rigid hairs 

 arising from dark glands on 

 either side of the midrib 



Leaves usually short (lower, 2 

 to 8 in.; upper, 1 to 4 in. long), 

 flat, narrow, the lower margins 

 usually fringed with rather long, 

 scattered hairs 



Roots fibrous 



