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5 Spring Allergy Offenders

Learn when these plants produce pollen. Plus, tips for an allergy-free backyard

In the spring, trees are the primary source of airborne pollen. During the summer, grasses take the lead role, followed in the late summer and fall by weed pollen, including the dreaded ragweed.

See also: Worst cities for people with spring allergies.

The following five plants are among the worst offenders when it comes to spring allergies. Why? Because they rely on wind, not on insects, to disperse pollen. As a result, they produce a lot of it to increase the chances that grains will reach and fertilize a female flower.

5 Worst Plants for Spring Allergies

Scanning Electron Micrograph of pollen grains. — PSU Entomology/Photo Researchers

Of course, all that airborne pollen also means more of it is likely to reach your nose and eyes. Read "10 Tips to Reduce Your Exposure" for ways to manage spring allergies.

Next: "Cedar Fever" led Texans to campaign against this tree. >>

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