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Weeds. 



closely resemble the seeds of some varieties 

 of rape. 



Wild mustard comes up in spring as soon 

 as the weather gets really warm, but seeds 

 that come sufficiently near the surface will 

 germinate as long as the season of growth 



WILD MUSTARD. 



lasts. It grows very rapidly, and matures 

 an immense number of seeds. It sometimes 

 grows to the height of more than two feet, 

 but when it ripens amid grain crops is about 

 eighteen inches in height. Its seed pods 



