ARROWLEAF GROUNDSEL 



Senecio triangularis Hooker 



Arrowleaf groundsel is a common plant which blooms late in the 

 season in the Canadian Rockies. It likes the rich soil of the borders 

 of alder thickets, where the brittle stems are somewhat protected 

 from the wind, and other moist places. It is a lush, coarse plant whose 

 yellow flowerheads give a gay color note in contrast to the bright 

 green leaves. 



The genus Senecio belongs to the Aster Family, and comprises at 

 least twelve hundred species found in many parts of the world. They 

 are widely distributed over the North American continent. This spe- 

 cies ranges from New Mexico and California north to Saskatchewan 

 and Alaska. 



We gathered the specimen sketched near Evelyn Glacier, twenty- 

 five miles from Castle, Alberta, at an altitude of 6,500 feet. 



PLATE 385 



