Ragweed pollen is a common allergen. A single plant may produce about a billion grains of pollen per season, and the pollen is transported on the wind. It causes about half of all cases of pollen-associated allergic reactions. (Hay fever
Ragweed pollen is a common allergen. A single plant may produce about a billion grains of pollen per season, and the pollen is transported on the wind. It causes about half of all cases of pollen-associated allergic reactions. (Hay fever). Common culprits are common ragweed (Ambrosia. artemisiifolia) and great ragweed (A. trifida). Goldenrod