EXPERIMENT STATION BULLETINS. 



419 



Fig. 227 (199). 



Broad-leaved Gum-plant. Tar-weed. 



Grindelia squarrosa (Pursh) Dunal. Perennial 

 or biennial, smooth, erect, 20-60 cm. high; 

 leaves narrow; often spatulate, base more or 

 less clasping; bracts of the involucre strongly 

 spreading, very glutinous, flowers yellow, 

 native in the west, introduced with seeds of 

 clover and grasses. 



Fig. 228 (202). 



Elecampane. Inula Helenium L. A 

 coarse, stout, erect, pubescent perennial, 60-180 

 cm. high; lower leaves ovate, petioled, 2045 

 cm. long, tlie upper partly clasping; ray flowers 

 yellow, numerous. 



