BURGESS MILKVETCH 



Astragalus bourgovii Gray 



Among the numerous members of the Pea Family this dainty plant 

 is one of the most appealing. A number of stems grow from a central 

 point and, falling carelessly all around, give the impression of a loose 

 bouquet, the flowers, on their delicate stems, projecting beyond the 

 leaves. The ponies like to eat them, and perfect specimens are difficult 

 to obtain where horses have had access to the colonies. 



Burgess milkvetch has a rather restricted range in the northern 

 Rocky Mountains, from South Dakota and Montana to British Co- 

 lumbia. Usually it is found among partially disintegrated rocks. 



This specimen was gathered at Burgess Pass, seven miles by trail 

 from Field, British Columbia, on a northwestern slope, at an eleva- 

 tion of 7,500 feet. 



PLATE 2.1 



