GENERA OF GRASSES OF THE UNITED STATES. 



143 



the glumes; glumes about equal; lemma equaling or longer than the 

 glumes, 3-nerved, often bearing a slender awn just below the tip. 



FIG. 79. Hare's-tail grass, Lagurus ovatus. Plant, X I ; spikelet and floret, X 5. 



Tall cespitose perennials, with open, narrow, or spikelike panicles. 

 Species 15, northern South America to Mexico, 5 extending into the 

 southwestern United States. 



