Papilionaceae 171 



situations throughout the Rockies at the 

 lower altitudes; flowering during June and 



July. 



Sterns slender, ascending and 

 Astragalus 



convallarius ri g id > Io ~ l8 incheS hi S h ' branch - 

 Greene. ing from the base ; hairy through- 



Slender QU ^ Leaves 3-6 inches long 



Milk-vetch. , v M1 



with 9-17 narrowly linear, silky 



leaflets J-i inch long, remote. Flowers pale 

 violet or mauve, half an inch or more long, 

 scattered in a slender raceme 3-5 inches 

 long ; peduncles much longer than the leaves ; 

 calyx about -J- the length of the corolla with 

 scattered white or brownish hairs. 



On the eastern slopes of the Rockies in 

 dry stony ground at the lower altitudes; 

 flowering in early June. 



Stems 18-24 inches high, stout 

 Astragalus 



Macouni and leafy, slightly striate and 

 Rydb. nearly smooth. Leaves 2-4 



Macoun's mc hes long, thin, odd-pinnate 

 Vetch. 



with 4-8 pairs of obtuse, oblong, 



or oval leaflets, J-i inch long. Flowers 



