Fast Facts about fall's nastiest weed.
1. There are dozens of varieties of ragweed, but common and giant ragweed are the biggest culprits.
2. Ragweed pollen can travel; it has been measured in the air 400 miles out to sea and two miles up in the atmosphere.
3. A ragweed plant lives only one season, but produces up to 1 billion pollen grains.
4. People with ragweed allergy may also get symptoms when they eat cantaloupe and banana. That's an allergic cross-reaction.
5. Some people relocate to get away from ragweed, and while that often helps for a few years, it's common to develop allergies to plants in the new location within a few years.
Source: Asthma & Allergy Foundation of America
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