Ключевые слова: abstract, allergen, allergy, ambrosia, artemisiifolia, asthmatic, background, bitterweed, bloom, blossom, blow, botany, closeup, common, detail, disease, fever, field, flora, flower, grass, green, growth, harmful, herb, illness, inflorescence, leaf, meadow, nature, nose, outdoor, overgrown, pest, plant, pollen, problem, ragweed, season, sensitive, sickness, sneeze, snuffle, stem, stickweed, summer, tassel, weed, wild, wormwood,