Creosote-Bush Greasewood (Larrea)
 
    Creosote-Bush Greasewood Genus Details
 
    The creosote bush is an evergreen balsam-scented shrub that grows to 10 feet tall in dry soils. Some say this shrub has a creosote odor. The small leaves reach 1/3 inch long, and are opposite, fleshy or leathery, spine-like, and resinous. The yellow flowers usually reach 1/4 inch long. Flowering occurs during February to August in the south central U.S. and from March to May in the southwestern U.S. The creosote bush is insect-pollinated but the pollen may become airborne.
    Creosote-Bush Greasewood Allergy Info
 
    Reports in studies have shown this to be potentially allergenic, specifically in California.
    Creosote-Bush Greasewood Pollen Description
 
    Grains are prolate to prolate-spheroidal. The amb is triangular with convex sides and 3-colporate.
    Pollen grains are generally 28-30 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
        Creosote-Bush Greasewood (Larrea) is a genus of the ZYGOPHYLLACEAE family.
This genus includes the following allergenic species:
    
    
    This genus includes the following allergenic species:
 
                    
                






 
  
                        

