Not every kind of tree produces pollen that causes nasal allergies. But enough do to make seasonal allergies from tree pollens a major health issue.

Common Allergy-Producing Trees
  • alder
  • ash
  • beech
  • birch
  • box elder
  • cedar
  • cottonwood
  • cypress
  • elm
  • eucalyptus
  • hickories
  • juniper
  • maples
  • mesquite
  • mulberry (nonfruiting)
  • oak
  • olive
  • orange
  • osage
  • pecan
  • palm
  • poplar
  • sweet gum
  • sycamore
  • walnut
  • willow