316 



WEED FLORA OP IOWA 



Fig. 1S1-A. Distribution of Smooth Goldenrod. 



Large Yellow- flowered Goldenrod {Solidago rigida L.). 



Description. — A rough and somewhat hoary perennial, minutely 

 pubescent; stems stout, 2-5 ft. high, very leafy; leaves oval or ob- 



Fig. 182. Large-flowered Goldenrod (Solidago rigida). In pastures and road- 

 sides. 

 (Photographed by Colburn.) 



