Pollen allergy mainly refers to the allergic reaction of the human body to pollen, which usually includes nasal congestion, red and swollen eyes, itchy skin, etc. In severe cases, it can induce respiratory diseases such as asthma.
Wind-pollinated flowers are the culprit of allergies. Juniper pollen is the “number one killer” causing spring pollen allergies. Poplar and willow trees are dioecious, and the main source of pollen for Salicaceae trees is the pollen produced by male plants when they bloom.