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Vw. 435. Stipa richardsoni Link, Hort. Berol. 2 . 245. IX'.^d. 

 KiCHARDsoNS Feather-gras.s. A slender, erect perennial G to ! 

 dm. high, with narrow leaves, and nodding, opi-n, fe\v-tlo\vered 

 panicles 7 to 12 cm. long. Spikelets (a) 8 to 9 mm. long, the 

 broadly lanceolate, acute empty glumes exceeding the thinly 

 hairy flowering glumo (/>). Awn slender, scabrous, 12 to 20 nun. 

 long. Dry hillsides and open woods. South Dakota, Colorado, 

 Wyoming, Montana, and Can.ida. July-Septemlnr. 



