Weed pollen refers to the tiny particles released by certain plants, commonly known as weeds, during their reproductive cycle. These pollen grains are carried by the wind and can travel long distances, contributing to seasonal allergies in many people. Common sources of weed pollen include plants like ragweed, sagebrush, and pigweed. When inhaled, weed pollen can trigger allergic reactions in sensitive individuals, leading to symptoms such as sneezing, runny nose, and itchy eyes. The peak pollen season varies by region and is often influenced by climate conditions. Understanding weed pollen can help individuals manage their allergies more effectively.