204 



Fig. 560. Poa argentea Howell. BviU. Torr. Bot. Club 15 : 11. 

 1888; Vasey, 111., N. Am. Grasses, 2: No. 72. Silvery Bli e- 

 GRASS.— A slender, smooth, densely ciuspitose, erect perennial 1.5 

 to 2.5 dm. liij;li, Avitli llat leaves and narrow, oblong, ratlier loosely 

 flowered panicles 2 to 4 cm. long. Spikelets (« ) oblong-lanceolate, 

 2- to 3-flowcred, 6 to 7 mm. long, with thin, oblong, obtuse glumes, 

 the lloral ones {b) smooth, 4 to 5 mm, long.— In the mountains 

 of western Oregon. Julv. 



