Carduaceae 



289 



tudes throughout the Rockies; flowering 

 during July and August. 



Eri on 



simplex 

 Greene. 



Fleabane. 



Heads 



Stems 1-6 inches high, several 

 from the same root. Leaves 

 few, the basal spatulate or 

 oblanceolate, 1-2 inches long; 

 stem leaves linear and few. 

 of an inch in diameter, solitary; 

 involucre usually rough-hairy as well as 

 woolly, bracts linear-acute, rather close, rays 

 J J of an inch long, white, very numerous. 

 An alpine plant in dry ground at the higher 

 elevations, among stones and on the moraines, 

 flowering in July. 



Soft hairy above, 12-20 inches 

 Leaves smoo th, thick, 

 reen > spatulate or 

 nearly ovate, acute or con- 

 spicuously bristle-tipped, the up- 

 permost small and bract-like. 



. . 



Heads over ij inches in di- 

 ameter; rays 50-70, purple or violet, J-f of 



Erigeron 

 salsuginosus 



(Richards) 

 A. Gray. 

 Large 

 Purple 



Fleabane. 



