Ключевые слова: agent, allergen, allergenic, allergic, allergies, allergy, ambrosia, asthma, autumn, background, care, causing, composition, dangerous, disease, fever, flat, flora, genus, green, health, illness, inflorescence, invasive, isolated, lay, medication, natural, nature, noxious, object, pills, plant, pollen, ragweed, reaction, season, seasonal, seed, strong, summer, top, toxin, view, weed, white, wild,