Plumeless-Thistle (Carduus)
 
    Plumeless-Thistle Genus Details
 
    This thistle is usually a winter annual or biennial herb that rarely flowers its first year. Its stem is erect, usually branched with spiny wings.  It will usually grow to 9-10 feet tall. This thistle is native to Europe but spread rapidly through the U.S. and Canada when introduced. It can be found in waste areas that have chalky or limestone soils. The down of this plant has been used as material in making paper.
        
    
    Plumeless-Thistle Allergy Info
 
    This genus is usually considered only a minor cause of allergic reactions.
    Plumeless-Thistle Pollen Description
 
    No pollen description is currently available.
    
    Species in This Genus
 
    
    Allergenicity Legend: 
         Mild Allergen  |
 Mild Allergen  | 
         Moderate Allergen  |
 Moderate Allergen  | 
         Severe Allergen  |
 Severe Allergen  | 
         Allergy Test Available
 Allergy Test Available
        
    
     Mild Allergen  |
 Mild Allergen  | 
         Moderate Allergen  |
 Moderate Allergen  | 
         Severe Allergen  |
 Severe Allergen  | 
         Allergy Test Available
 Allergy Test Available
        Plumeless-Thistle (Carduus) is a genus of the ASTERACEAE family.
This genus includes the following allergenic species:
    
    
    This genus includes the following allergenic species:
 
                    
                







 
  
                        

