G121 



GREEN NEEDLEGRASS 



Sti'pa viri'dula 



Flower head (panicle) narrow, some- 

 what spikelike, greenish, 4 to 8 in. long 



Individual flower groups (spikelets) 

 1-flowered, numerous from near the 

 base of the erect flower-head branches 



Lowest (2) spikelet bracts (glumes) 

 equal, }' t to % in. long, thin, papery, 

 tapering to slender point, with 3 promi- 

 nent, green veins 



Leaves mainly basal, with somewhat 

 hairy, inrolled margins, 4 to 12 in. long; 

 upper leaves broader, sometimes flat; 

 sheaths smooth, hairy at the throat and 

 on margins 



Stalks (culms) mostly smooth, erect, 

 up to 3) (usually 2 to 3) ft. high 



Outer flower bract Gemma) evenly 

 and sparingly soft-hairy, about %e in. 

 long, tipped with a securely attached 

 bristle (awn) which is % to 1} in. long, 

 twice bent, twisted to the second bend, 

 and harsh but not feathery 



"Seed" (caryopsis) hard and cylindri- 

 cal with a rather blunt-pointed, white- 

 bearded base (callus), closely enfolded 

 by lemma 



Boots fibrous 



