1 74 Papilionaceae 



peduncles longer than the leaves; calyx 

 nearly half as long as the corolla, with long 

 white and short black hairs. 



Frequent throughout the Rockies in dry 

 stony and alpine meadows and slopes, at 

 varying elevations; flowering from June to 

 early July. 



Tufted, the branches of the 



Aragallus 



L mb rt' caudex short; scapes few or sev- 



(Pursh) eral, erect, rather slender, 4-20 



Greene. inches high. Leaves several, 



Loco Weed. mostly erect> shorter than the 



scapes; leaflets 10-15 pairs, mostly oblong- 

 lanceolate, from sparsely soft- pubescent 

 to lightly canescent, acute, J-i inch long. 

 Flowers pale yellow, J an inch long and twice 

 as long as the calyx, in a loose head, 2-4 

 inches long. 



Abundant in the open ground on the east- 

 ern slopes of the Rockies; a strikingly hand- 

 some vetch frequently found in masses of 

 considerable extent, especially in the region 

 around Banff; flowering in June and early 



July- 



