Ambrosia
A plant genus of the family ASTERACEAE. The POLLEN is one cause of HAYFEVER.
Artemisia
Rhinitis, Allergic, Seasonal
Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS.
Beetles
Meteorological Concepts
Xylariales
Allergens
Pollination
The transfer of POLLEN grains (male gametes) to the plant ovule (female gamete).