185 



Fig. 167. Arrhenatherum elatius (L.) Beauv. (Arena elatior 

 L.). Tall Oat-hk ass. — A loosely tufted perennial 6 to 12 dm. high, 

 with tlat leaves and narrow, loosely flowered panicles 15 to 20 em. 

 long. — Introduced from Europe as a fodder grass. Valuable; in 

 Europe regarded as one of the best meadow grasses. May, June. 



