178 



Fig. 160. Trisetum subspicatum (L.) Beauv. (Aira subspicata 

 L.). Downy Oat-grass. — A. slender, erect perennial 1.5 to 4.5 

 dm. high, with usually downy culms and leaves and densely 

 many-flowered, spike-like panicles. — Widely distributed in the 

 cooler temperate regions of both hemispheres, ranging in North 

 America from Labrador to Alaska and extending southward in the 

 Eastern States to the mountains of North Carolina and Tennes- 

 see, and in the West to New Mexico and California. June-Sep- 

 tember. 



