Carduaceae 309 



lower altitudes; flowering during June and 

 early July. 



Smooth except for the small 

 Senecio 

 discoideus tufts of wool in the axils of the 



(Hook.) lower leaves; stem rather stout; 



Britton. j- 2 feet tall. Basal leaves oval 



Northern 



QT Qvai ^ thin> sharply dentate, 



Squaw-root 



abruptly narrowed into petioles 

 longer than the blade ; stem leaves few, small, 

 more or less irregularly cut. Heads few or 

 numerous, corymbose ; bracts of the involucre 

 narrowly linear, nearly J an inch high ; rays 

 very short or wanting; achenes smooth. 



Frequent throughout the Rockies on river 

 shores and borders of woods and thickets; 

 flowering in July. 



Light or yellowish-green, slender, 

 Senecio . 



flavovirens wo Uy m tufts at the base of the 



Rydb. leaves or smooth in age; stem 



Western 12-18 inches high, striate, pale. 



Balsam Leaves 1-3 inches long, at the 



Groundsel. 



base obovate or broadly oval, 

 generally tapering into the petiole but some- 



