250 Scrophulariaceae 



an inch or more long, tubular funnel-form, 

 2-lipped, the upper deeply 2-, the lower 

 3-cleft. 



Throughout the region in exposed stony 

 places and on slides up to an elevation of 

 10,000 feet, frequently growing in patches 

 of considerable size; flowering in June and 

 early July. 



Smooth throughout or the in- 

 Pentstemon _ 



. . florescence and calyx sometimes 



confertus 



Dougl. with viscid hairs ; stem a foot or 



Yellow two high. Leaves from oblong 



or oblong-lanceolate to some- 

 what linear, usually quilte entire. 

 Flowers in a terminal head of 2-5 dense, 

 many-flowered clusters; corolla with a nar- 

 row tube about ^ an inch long, pale yel- 

 low; the lower lip conspicuously bearded 

 within. 



In moist or dry open ground throughout 

 the Rockies, especially abundant in the 

 valleys of the Bow and Pipestone in the 



