Siitepölyä sypressipuista, jota esiintyy keväällä ja syksyllä. Aiheuttaa tunnetusti heinänuhaa ja astmaoireita.
Cross-reactivity between cypress pollen and certain foods is not typically prominent. However, some individuals with tree pollen allergies might experience mild reactions to specific foods, though these are more commonly associated with birch or alder pollen rather than cypress.