222 



WEED FLORA OP IOWA 



Fig. 127-D. Bladder Ketmia or Shoo-fly (Hibiscus trionum). Gardens and 

 corn fields. Large white flower with a dark spot at the base of each petal. 

 a and b trichomes or plant hairs. 



(a and b drawn by Charlotte M. King. The general aspect photographed by 



Colburn.) 



Fig. 127-E. Distribution of Shoo-fly. 



