Cultivated oat grass (Avena sativa) is a common cereal crop extensively grown in temperate regions. Besides its agricultural uses, it is recognized as an airborne allergen. During its pollination period, oat grass releases pollen into the air, which can be inhaled and may trigger allergic reactions in sensitive individuals. Symptoms can include sneezing, nasal congestion, itchy eyes, and respiratory irritation. It is one among many grasses whose pollen contributes to seasonal allergic rhinitis, commonly known as hay fever.
Yes, many grass pollens share similar proteins, and cross-reactivity is common among species like timothy grass, ryegrass, and cultivated oat grass. This can make it difficult to identify the exact source of symptoms without specific testing.
Oat grass generally blooms from late spring to early summer, though this timing may differ based on the climate and region.