ALLERGY AND ASTHMA IN THE SOUTHWESTERN UNITED STATES 

Arizona Cypress  - Cupressus arizonica 
arizona cypress image  
AHSC logo  Flowering period in Southern Arizona:  October - April.  Allergens similar to those in introduced species  e.g. Italian Cypress
(C. sempervirens).
                                                                          Photo by Michael J Schumacher 1999
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