How to Use "ragweed" with Example Sentences

1. Dating sediments using ragweed and nuclear fallout

2. Whether the trigger is pollen or ragweed , suffering during allergy season is no fun .

3. For 75 percent of those 35 million , ragweed is the primary allergen , he added .

4. People with ragweed allergies are more likely to have a reaction to echinacea , and there have been cases of anaphylactic shock .

5. The findings correlate with analysis last year by the national wildlife federation that found ragweed growth rates and pollen counts increased with global warming .