Setaria faberi
Giant Foxtail aka Chinese Foxtail
Eastern Asia

 

Annual grass weed. This species is a tetraploid which resembles green foxtail (Setaria viridis).
 
Distinguished from yellow foxtail (S. glauca) by the larger, strongly nodding seed head and ciliate sheath margins.
 
 
 

 
 

 

 
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