an abandoned field overgrown with a wild plant - ragweedambrosia. allergy season.

abandoned allergen allergenic allergic allergies allergy ambrosia artemisiifolia asthma autumn bloom blooming blooms botanical botany bushes choking dangerous disease fever field flora flower flowers garden grass green growth hay hazardous health inflorescence leaf natural nature noncultivated nose overgrown plant plants pollen ragweed ragweedambrosia rash runny season sneezing spring summer weed wild yellow