Dog's-Tail Grass (Cynosurus)
 
    Dog's-Tail Grass Genus Details
 
    Dog's tail grass is generally found in waste areas and pastures. Sheep are the main forage animals that consume this grass. Dog's tail is a perennial which grows on underground upright stems (rhizomes).  Leaves are in two rows on the stem. Dog's tail grass produces abundant pollen in June and July.  In southwestern states it can produce pollen April through July.  Dog's tail grass gets its name from its wiry stalks, which, when dried,  bend to look like a dog's tail waving in the wind.
    Dog's-Tail Grass Allergy Info
 
    This grass genus can become a problem where it is found in volume.
    Dog's-Tail Grass Pollen Description
 
    Grains are spheroidal to ovoidal, sometimes elliptical. The exine is thin and the surface is granular to finely reticuloid. Poaceae apertures are 1-porate, with the pores usually circular to ovoidal.
    Grains are 22-122 micrometers in diameter.
    
This plant belongs to the grass family.  All pollen grains in this family are similar to the Poaceae (grass) grain pictured here.

This plant belongs to the grass family.  All pollen grains in this family are similar to the Poaceae (grass) grains pictured here.
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
        Dog's-Tail Grass (Cynosurus) is a genus of the POACEAE family.
This genus includes the following allergenic species:
    
    
    This genus includes the following allergenic species:
 
                    
                






 
  
                        

