Cottonwood/Poplar • Populus
Trees & Shrubs
Conditions: Allergic rhinitis
Symptoms: Itchy, stuffy, or runny nose; post-nasal drip; sneezing; itchy, red or watery eyes.
Physical description: Can grow between 50 -150 feet in height; deciduous leaves are alternate, simple and usually have coarse toothed margins; bark on young trees is smooth, white to greenish or dark gray, and may become rough with fissures as the tree ages; leaves may be spirally arranged, and vary in shape from triangular to circular or lobed.
Cross-reactivity: Cottonwood: aspen and black; poplar: Fremont, balsam, Lombardy, and white.
- “Cottonwood.”Merriam-Webster. https://www.merriam-webster.com/cottonwood
- “Pollen Calendar.” HollisterStier Allergy. http://www.hsallergy.com/patient-education/pollen-calendar/
- “Cottonwood, Poplar.”Pollen.com. https://www.pollen.com/research/genus/populus
- “Poplar.”Wolfram Alpha LLC. https://www.wolframalpha.com/input/?i=poplar
- “Allergic Rhinitis.” ACAAI.org. http://acaai.org/allergies/types/hay-fever-rhinitis
- “Cross-Reactivity.” HollisterStier Allergy. http://www.hsallergy.com/products/cross-reactivity/
- “Populus.” New World Encyclopedia. http://www.newworldencyclopedia.org/entry/Populus
- “Black Cottonwood, Populus balsamifera ssp. trichocarpa.” Native Plants PNW. http://nativeplantspnw.com/black-cottonwood-populus-balsamifera-ssp-trichocarpa/
Did You Know?
Poplar is used for panel paintings in Italy; the Mona Lisa is painted on poplar.