MANUAL OF THE GRASSES OF THE UNITED STATES 



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weak and lax to relatively stout and tall, 30 to 100 cm tall; leaves 

 rather numerous, the blades lax or stiffly upright, corresponding to the 



Figure 657.— Agrostis idahoensis. Panicle, X 1; glumes and floret, X 5. (Chase 5162, Idaho.) 



culms. 1 to 6 mm wide, 10 to 20 cm long; panicle pale, open, oblong, 

 the branches ascending, branching again 

 about the middle; spikelets 2 to 3 mm long; 



glumes nearly equal, 



acute or acuminate; 



lemma 1.5 to 2 mm 



long, awnless (rarely 



awned); pale a obso- 

 lete or nearly so. % 



— Open ground, old 



fields, open woods, 



in rather dry soil 

 from sea level to the tops of the mountains, 

 flowering in late summer or autumn, Quebec 

 to Minnesota, south to Florida and eastern 

 Texas (fig. 691). In dry open ground the culms are erect and rather 



Figure 688.— Distribution of 

 Agrostis idahoensis. 



Figure 689.— Agrostis bakeri. Pan- 

 icle, X 1; glumes and floret, X 5. 

 (Dupl. type.) 



Figure 



Agrostis perennans. Panicle, X 1: glumes and floret. X 5. (Millspaugh 53, W.Va. > 



stout; in shady places the plants are lax and the panicle lax with 

 divaricate branchlets. 



