175 



Fig. 157. Deschampsia calycina Presl {Aira danthonioides 

 Trin.). Oat-like Haiii-orass. — A rather slender, erect, citspitose 

 grass from 1 to 7 dm. liigh, with more or less- spreading panicles. — 

 Native along the Pad tic Slo])e Irom Canada to California, east- 

 ward to Utah, and southward through Mexico to Peru. April- 

 July. 



