Ключевые слова: abstract, acacia, allergen, allergenic, allergic, allergy, ambrosia, artemisiifolia, autumn, background, bitterweed, bloom, blooming, blossom, botanical, botany, boy, color, dangerous, disease, fever, flora, flower, fresh, green, growth, hay, illness, inflorescence, leaf, light, meadow, nature, nose, object, pest, plant, pollen, quarantine, ragweed, reaction, season, sickness, sneeze, soft, stem, summer, tassel, weed, wormwood,