What Are Ragweed Allergies?
An allergy is the reaction of a person’s immune system to a foreign body, such as ragweed or mold, that triggers a response by the immune system. Foreign bodies that trigger allergic reactions are called “allergens.” Ragweed as an Allergen Ragweed pollen is one of the most common allergens effecting people. Pollen is produced by plants like ragweed in order to reproduce. Pollen consists of microscopic-sized round- or oval-shaped grains containing the plant’s seed.