Canadian Thistle
Cdn & Sow thistle   Cdn thistle flower   Cdn thistle heads

Canadian and Sow thistle infestation. Picture taken by M. Ammeter.

   Close up of Canadian thistle flowers . Picture taken by M. Ammeter.   Close up of Canadian thistle flower heads. Picture taken by M. Ammeter.
Cdn thistle infestation   Cdn thistle infestation    

Canadian thistle infestation in farm field. Picture taken by M. Ammeter.

   Close up of Canadian thistle infestion in field. Picture taken by M. Ammeter.    
 
  
 
 
  
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