McHenry County Conservation District / McHenry County College / ThistleCanadian
Fall Wildflower - Pink & Red Gallery
Information: MCCD #(815) 338-6223

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ThistleCanadian Common Name:
Canadian Thistle
 
 
Scientific Name: Cirsium arvense

 

Habitat/Season: Roadsides, Pastures & Waste Places / June-October

 

Comment: Invasive Although originally from Europe, it entered the United States through Canada, hence its name. Classified as a noxious weed in most states.