1. Health

Timothy Grass Pollen - Summer Allergy Trigger

Common Asthma Allergens & Allergy Triggers


Timothy grass is one of the many types of grass that produce grass pollen, a common asthma and allergy trigger.
Timothy grass pollenSource: American Academy of Allergy, Asthma and Immunology
Timothy grass pollen is one of the common summer seasonal allergy triggers.
Pollen is an airborne allergen that may set off numerous asthma symptoms in sensitive people at certain times of the year. Pollen are tiny egg-shaped male cells found in flowering plants that they use during the fertilization process. The size of a typical pollen spore is smaller in diameter than a human hair.

There are different types of pollen. Some are large and waxy, while others are light, small and dry. Light, dry pollens, which are found on certain trees, grasses and low weeds such as ragweed, are easily picked up and disseminated by air currents and wind. This is the type of pollen that triggers allergies and allergic asthma.

During the late spring and summer, grass pollens are more likely to trigger your symptoms. Common grass allergens include:

  • Bermuda grass
  • Bluegrass
  • Orchard grass
  • Red top grass
  • Sweet vernal grass
  • Timothy grass (pollen pictured above)

There are some easy steps you can take to avoid Timothy grass pollen.

  1. About.com
  2. Health
  3. Asthma
  4. Triggers
  5. Timothy Grass Pollen - Picture of Timothy Grass Pollen

©2014 About.com. All rights reserved.