122 IOWA ACADEMY OF SCIENCES. 



A. Novce-Anglice L. 



Turin, borders of woods, common; South Dakota, opposite 

 Hawarden, few specimens near spring (L. H. P.); 

 Sioux City (B. W.). 

 A. Si ria us Vent. 



Sioux Rapids, prairies, Turin, Missouri Valley, abundant 

 over loess mounds (L. H. P.); Sioux City (B. W.). 

 Willd. 

 Turin, low grounds (L. H. P.). 

 A. • L. 



Turin, low grounds (L. H. P.). 

 A. multiflorus Ait. 



Missouri Valley, open places, woods (L. H. P.); Sioux 

 City (B. W.). 

 A. paniculatus Ltdi. 



Sioux City, bottoms (L. H. P.); A. ptarmicoides, Torr. & 

 Gray. Little Rock, prairies (Herb. C. R. Ball). 

 L. 

 Sioux City (B. W.); a weed in fields and pastures through- 

 out western Iowa (L. H. P. observations). 

 E. strigosus Muhl. 



Rock Valley (W. Newell, J. F. Jensen); Little Rock, 

 prairies (Herb. C. R. Ball). 

 E. Philadelphia/^ L. 



Hull (W. Newell); Sioux City (B. W.). 



naria plantaginifolia Hook. 

 Sioux City (B. W.). 

 Silpl turn L. 



Couacil Bluffs, common around loess mounds (L. H P.): 

 Sioux City (B. W.). 

 8. perfoliatum L. 



Sioux City (B. W.). 



' i Xatt. 

 Sioux' City (B. W., L. H. P.): Onawa L. H. P.); Smith- 

 land (J. M. Wrapp). An extremely abundant weed 

 everywhere in western Iowa, growing luxuriantly ten 

 to twelve feet high in streets, vacant lots, dooryards, 

 and around neglected buildings, etc. 

 Ambrosia trijtda L. 



Lthland (J. M. Wrapp): Sioux City (B. W.). A common 

 weed aiong creeks and river courses in western Iowa 

 (L. H. P.). 



