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Ugly plants worse for allergy patients

As allergy season continues for Middle Tennessee and much of the U.S., a largely unknown adage rings true: the uglier a flower or weed, the more allergy-inducing its pollen tends to be. Ragweed, mugwort, plantain and pigweed have more than just their unappealing appearance in common?they?re some of the worst offenders to allergy sufferers.
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