316 



WEED FLORA OP IOWA 



Fig. 181-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- 



Flg. 182. Large-flowered Goldenrod (.SoUdago rigida). In pastures and road- 

 sides. 

 (Photographed by Colbum.) 



