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WEED FLORA OF IOWA 



Fig. 65. Iowa Tumbleweed or Tumbling Pigweed (Amaranthu3 graecizans). 

 Common in corn fields. Plant grows in circular form, separates from the 

 root in the autumn and rolls over and over, scattering the seeds. 

 (Photographed by Hart.) 



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 Fig. 65-A. Distribution of Tumbleweed. 



