In the United States, the following trees, grasses and weeds can cause significant allergic reactions. The intensity of pollens varies within broad geographic areas and by season.
Internet Grateful Med USA
Your comments
Pollens Information and Home Air Purifiers
0%
About 30% of the population is allergic to these tiny packets of concentrated protein.
Home Air Purifier, Inc USA
Your comments
Ragweed
75%
Ragweed and other weeds such as curly dock, lambs quarters, pigweed, plantain, sheep sorrel and sagebrush are some of the most prolific producers of pollen allergens.
A brief overview.
National Institutes of Health (NIH) USA
Your comments
Ragweed
0%
Ragweed, common. Ambrosia artemisiifolia (AMBEL) This is the worst offender for those people allergic to pollen. This plant releases copious amounts of pollen which has a high rating for causing "hayfever". By the time of pollen release, it looks very ratty.
Rutgers Cooperative Extension USA
Your comments
Ragweed Pollen Allergy
50%
Ragweed, the number one cause of fall hay fever symptoms in the United States, is the third and final phase of Mother nature's annual pollination process.
Allergies.About.com USA
Your comments
Regional Tree Pollen Map
0%
Map showing when pollen season begins in your area.
Rhinocort Aqua USA
Your comments
Risk Factors for Childhood Asthma
7%
An article on the risk factors for developing childhood asthma and that may increase or decrease the probability of an individual developing the disease.
Dr Jan Vermeulen
Allergy Society of South Africa (ALLSA) SouthAfrica
Your comments
Seasonal Rhinitis and Asthma
0%
Spore Counts and Peak Flow Rates - Effects of Spore Counts - Seasonal Pollens and Spores
Dr. Harry Morrow-Brown
Allergies Explained UK
Your comments
Something in the Air: Airborne Allergens
0%
This long article covers the following:
What is an allergy?, Why are some people allergic to these substances while others are not?, What is an allergic reaction?, Symptoms of Allergies to Airborne Substances, Pollen Allergy, What is pollen?, When do plants make pollen?, Mold Allergy, What is mold?, What is mold allergy?, Where do molds grow?, Which molds are allergenic?, Are mold counts helpful?, Are there other mold-related disorders?, Dust Mite Allergy, What is house dust?, Animal Allergy, Chemical Sensitivity, Diagnosing Allergic Diseases, Skin Tests, Blood Tests, Treating People with Allergic Diseases, Avoidance, Air conditioners and filters, Medications, Immunotherapy, Allergy Research & Information Resources
This grades the article - click to view the article
This indicates an organization type - click for its details.
Click to vote for this article
NB: Clicking on the icon (or stars) causes a new browser window to open up in front of this window. The new window links to the article referenced to the right of the icon. Do NOT click the icon twice - this may result in the new window opening up behind this one.