Ambrosia psilostachy
Western Ragweed or Perennial Ragweed
Central United States

Rhizomatous perennial of dry prairies, sandy areas and abandoned i.e. non-disturbed farm land.
 
 
 
 
 

 

Less common that the Common or Great Ragweed species and, therefore, not as important as a cause of hay fever.

 

 
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