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This article appeared in the April 2002 web issue of Horticulture Update,
edited by Douglas F. Welsh, Ph.D., and produced by Extension Horticulture,
Texas Cooperative Extension, The Texas A&M University System, College Station, Texas.
Trees That Cause Allergic Reactions
Allergenic trees:
- Beech family - oaks
- Birch family - ornamental river birch
- Cypress family - arborvitaes, cedars, junipers
- Elm family - elms
- Horsechestnut family - Mexican buckeye
- Maple family - boxelders, maples
- Mulberry family - mulberries, osage oranges
- Olive family - ashes
- Quassia family - tree-of-heaven
- Sycamore family - sycamores
- Tamarisk family - tamarisks
- Taxodium family - bald cypresses
- Walnut family - hickories, pecans, walnuts
- Willow family - cottonwoods, willows
- Witch hazel family - sweetgums
(Only the above trees in each family cause allergenic reactions)
Non-allergenic trees:
- Evergreens
- Carolina cherrylaurels
- loquats
- podocarpus
- southern magnolias
- Deciduous
- callery pears
- catalpas
- Chinese pistaches
- crape myrtles
- figs
- flowering dogwoods
- ginkgos
- goldenraintrees
- honeylocusts
- mimosas
- palms
- purple leaf plums
- saucer magnolias
(Taken from publication # 430-020, Virginia Cooperative Extension Service)
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