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Dr. John M. Young

Pediatrician in Amarillo, Texas

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Alder

Alder • Alnus

Trees & Shrubs

Conditions: Allergic rhinitis; conjunctivitis; allergic asthma4 Symptoms: Itchy, stuffy, or runny nose; post-nasal drip; sneezing; itchy, red or watery eyes; asthmatic symptoms

Physical description: Deciduous, temperate climate tree or shrub; can grow up to 80 feet tall; produces catkins and small, woody cones1, 3

Environmental Factors: Mostly native to areas with cool, moist soil3

Cross-reactivity: Birch trees; several fruits and nuts, including apples, almonds, carrots, oranges, hazelnuts, peaches, pears, and plums2

Included species: Arizona alder, black alder, and white alder3

References

  1. “Alder (Alnus).” Common Trees of the Pacific Northwest. https://oregonstate.edu/trees/broadleaf_genera/alder.htm
  2. “Lists of foods cross-reacting with pollen.” Food Allergy Information. http://www.foodallergens.info/Facts/Pollen&Food/Which_Foods.html
  3. “Alder.”Pollen.com. https://www.pollen.com/research/genus/alnus
  4. “Allergen of the Month—Black Alder.” Annals of Allergy, Asthma & Immunology. http://www.annallergy.org/article/S1081-1206(13)00283-4/fulltext
  5. “Alder.”Merriam-Webster. https://www.merriam-webster.com/dictionary/alder

Did You Know?

Alder wood is used to make clogs. Its charcoal is made into gunpowder, and its leaves and stem bark are used in herbal remedies.

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