MEDICINAL WEEDS OP IOWA 



775 



Fio. 569. Quack Grass (.Agropyron repens). The root-stock used lor bladder 



trouble, 

 (Drawing by Charlotte M. King.) 



The entire herb of water pepper {Polygonum hydropiper) -when 

 decanted with alcohol forms a valuable diuretic, but is not recog- 

 nized in the Pharmacopoeia. 



The entire leafy part of the American wormseed {Chenopodium 

 ambrosioides} is valued for its anthelmintic properties. Oil from 

 the' fruit is official and sells for $1.50 per pound. 



