China-Aster (Callistephus)
 
    China-Aster Genus Details
 
    The china-aster is a popular bedding plant that is native to the Orient. The leaves are oval-shaped and coarsely toothed along the edges. Flower colors range from purple and red to pink, white and blue.  They usually reach up to 3 inches in height.
    China-Aster Allergy Info
 
    These are considered allergenic, although few formal reports can be found.
    China-Aster Pollen Description
 
    Callistephus has pollen of the Baccharis-type. Baccharis pollen grains are oblate-spheroidal to prolate-spheroidal; the amb triangular, 3-4 lobate and 3-4 colporate.  The sexine is generally thick, tectate, and has long spines. The intine is thin but slightly thickened below the apertures.
    The grains are typically 20-30 micrometers in diameter.
    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
        China-Aster (Callistephus) is a genus of the ASTERACEAE family.
This genus includes the following allergenic species:
    
    
    This genus includes the following allergenic species:
 
                    
                








 
  
                        

