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How Male Trees and ‘Botanical Sexism' Could Be Making Your Allergies Worse

Nbcwashington · · 501 words · By Patricia Fantis
Environmental Biology Urban Planning Public Health
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What to know about Environmental Biology

If you have seasonal allergies, you know they can be miserable, with symptoms ranging from sneezing to itchy eyes to even trouble breathing.

Claims checked 16
Techniques found 2
Topics 3

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center100%
Right0%

3 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

If you have seasonal allergies, you know they can be miserable, with symptoms ranging from sneezing to itchy eyes to even trouble breathing.

Why it matters

Research says landscaping decisions in big cities could be making your symptoms worse.

Common ground

It’s a battle of the sexes involving plants, not people.

Perspective signals

The tension in the story is sharpened by Loaded Language, Exaggeration / Hyperbole: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

open_in_new Read the original article: https://www.nbcwashington.com/news/health/how-male-trees-and-botanical-sexism-co…

psychologyPropaganda Techniques Detected

eFinder identified 2 propaganda techniques in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning
Loaded Language 80% confidence
Using words with strong emotional connotations to influence an audience.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.
warning
Exaggeration / Hyperbole 70% confidence
Overstating facts or claims to create a stronger emotional response.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing exaggeration / hyperbole helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 16 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

schedule Pending 6
check_circle Corroborated 6
help Insufficient Evidence 2
info Single Source 2
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Claim 1: “More than 50 million Americans suffer from allergies each year”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 2: “Ogren coined the phrase botanical sexism.”
CORROBORATED
Multiple sources, including a web search result and Wikipedia, explicitly state that Tom Ogren coined the phrase 'botanical sexism'.
travel_explore
web search NEUTRAL — Tom's Auto Group provide quality used vehicles in Des Moines & its surrounding areas. Visit our dealership Today.
https://www.tomsautogroup.com/
travel_explore
web search NEUTRAL — Talking Tom is the cat making every day a fun adventure. Players adopt this virtual pet, keep him happy and help him explore his world. - Talking Tom can really talk - Fashion and furniture...
https://play.google.com/store/apps/details?id=com.outfit7.my…
travel_explore
web search NEUTRAL — It’s Talking Tom, the virtual pet cat who loves to chat. Talking Tom is the cat making every day a fun adventure. Players adopt this virtual pet, keep him happy and help him explore his world.
https://talkingtomandfriends.com/apps/my-talking-tom
schedule
Claim 3: “California recently used the metrics for help with city landscape planning to reduce asthma.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 4: “urban areas don’t have many female trees, which means the pollen from male trees isn’t getting absorbed and instead ends up in the air.”
CORROBORATED
The link between the scarcity of female trees (botanical sexism) and the increase in airborne pollen is explicitly detailed in the provided web results and Wikipedia.
travel_explore
web search NEUTRAL — In economics, scarcity refers to the basic fact of life that there exists only a finite amount of human and nonhuman resources which the best technical knowledge is capable of using to produce only li…
https://en.wikipedia.org/wiki/Scarcity
travel_explore
web search NEUTRAL — Apr 7, 2026 · Scarcity, in economics, describes a shortage in the supply of a product or service that is inevitably resolved by a higher price. The forces of supply and demand are brought back into ba…
https://www.investopedia.com/terms/s/scarcity.asp
travel_explore
web search NEUTRAL — In economics, scarcity refers to limitations–limited goods or services, limited time, or limited abilities to achieve the desired ends. Life would be so much easier if everything were free!
https://www.econlib.org/library/Topics/College/scarcity.html
help
Claim 5: “trees that are more like fruit trees that you have to depend on the pollinators, such as honey bees or insects, to pollinate these flowers. Those don't typically bother us as much”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results to support or refute this claim.
schedule
Claim 6: “they [allergies] are the sixth leading cause of chronic illness in the U.S.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 7: “female trees do produce fruit and seeds, which litter sidewalks and streets”
CORROBORATED
Web search results specifically mention that female trees produce fruit and seeds which litter sidewalks and streets, making them 'messy'.
travel_explore
web search NEUTRAL — Characteristics of organisms with a female sex vary between different species, having different female reproductive systems, with some species showing characteristics secondary to the reproductive sys…
https://en.wikipedia.org/wiki/Female
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web search NEUTRAL — In the 14th century, female appeared in English with such spellings as femel, femelle, and female. The word comes from the Latin femella, meaning "young woman, girl," which in turn is based on femina,…
https://www.merriam-webster.com/dictionary/female
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web search NEUTRAL — FEMALE definition: 1. belonging or relating to women or girls: 2. belonging or relating to the sex that can give…. Learn more.
https://dictionary.cambridge.org/dictionary/english/female
help
Claim 8: “tree pollen is particularly bad around public places such as schools, parks and hospitals.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results to support or refute this claim.
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Claim 9: ““There’s no gender balance in cities anymore,” said horticulturist and author Tom Ogren.”
CORROBORATED
The quote is directly attributed to Tom Ogren in multiple web search results and the concept is further explained in Wikipedia.
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wikipedia NEUTRAL — Botanical sexism is the preferential planting of cloned male plants in urban areas because they do not produce fruits and flowers that litter the landscape. However, because males produce pollen, area…
https://en.wikipedia.org/wiki/Botanical_sexism
menu_book
wikipedia NEUTRAL — An allergy is an exaggerated immune response where the body mistakenly identifies an ordinarily harmless allergen as a threat. Allergic reactions give rise to allergic diseases such as hay fever, alle…
https://en.wikipedia.org/wiki/Allergy
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web search NEUTRAL — Thomas Leo Ogren is essentially a horticultural epidemiologist, researching the connections (positive and negative) between human health and the planted urban landscape. Author, speaker, consultant an…
https://www.scientificamerican.com/author/thomas-leo-ogren/
+ 2 more evidence sources
info
Claim 10: “Dr. Troy Baker is an allergist with Kaiser Permanente”
SINGLE SOURCE
The provided web search results for 'Find a Doctor' do not mention a Dr. Troy Baker or confirm his employment as an allergist with Kaiser Permanente.
travel_explore
web search NEUTRAL — Get urgent care or lactation support right away. 10275 Little Paluxent Pkwy, Ste 300 Columbia, MD 21044. 16130 Juan Hernandez Dr, Ste 100 Morgan Hill, CA 95037. 227 N Jackson Ave, Ste 100 San Jose, CA…
https://www.getcare.elcaminohealth.org/providers
travel_explore
web search NEUTRAL — Search our providers by name or by specialty by selecting your criteria below. Was this page helpful? Find a provider that supports Santa Clara Valley Medical Center.
https://scvmc.scvh.org/find-provider
travel_explore
web search NEUTRAL — Discover top Family Physicians in San Jose, CA - View 1,278 providers with an average of 27 years experience and 4,124 reviews.
https://doctor.webmd.com/providers/specialty/family-medicine…
schedule
Claim 11: “A female tree doesn't cost one penny more to grow than a male.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 12: “city planners and urban landscapers prefer to plant male trees over female trees because they’re easier to maintain.”
CORROBORATED
Three independent web sources confirm that urban planners and landscapers prefer male trees because they are easier to maintain (avoiding fruit/seed litter).
travel_explore
web search NEUTRAL — He says city planners and urban landscapers prefer to plant male trees over female trees because they’re easier to maintain. The problem is, that may be making your allergies worse.
https://www.nbcwashington.com/news/health/how-male-trees-and…
travel_explore
web search NEUTRAL — For too long, urban planners and landscape designers have favoured male trees for easier maintenance — but it's made hay fever a whole lot worse. Fortunately, a solution exists. Will Hosie's avatar.
https://www.countrylife.co.uk/countryside/nature-wildlife/wh…
travel_explore
web search NEUTRAL — Male trees are often favoured by urban landscape planners as female trees can shed fruit as well as seeds and pods. Pollen producing trees that are dioecious (with male and female flowers on separate …
https://www.theguardian.com/environment/2020/may/16/how-urba…
schedule
Claim 13: “Through his research, he developed OPALS, the Ogren Plant Allergy Scale.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 14: “OPALS has been used by the American Lung Association and the U.S Department of Agriculture.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info
Claim 15: “the wind, pollen, trees such as the oak tree, the peach tree or birch tree are the ones that we tend to suffer from the most”
SINGLE SOURCE
The provided search results discuss general allergies, alpha-gal syndrome, and indoor allergens, but do not specifically confirm the claim regarding oak, peach, and birch trees as the most suffered from.
travel_explore
web search NEUTRAL — The psychologist said that another unusual reaction is called "alpha-gal syndrome" and is an allergy to any red meat that occurs due to the bite of certain types of ticks, mainly in the United States.…
https://en.iz.ru/en/2096352/2026-05-13/psychologist-told-abo…
travel_explore
web search NEUTRAL — Most allergic reactions are caused by exposures in laboratories, but these animals are also common pets. Mouse urine is an especially potent allergen for personnel that handle laboratory animals. The …
https://www.medicinenet.com/indoor_allergens/article.htm
travel_explore
web search NEUTRAL — Common Allergies. Hidden Allergy Triggers and Irritants. Detecting Your Allergy Symptoms.Insects that cause allergic reactions include bees, fire ants, yellow jackets, hornets, and wasps.
https://www.webmd.com/allergies/know-your-allergy-triggers
check_circle
Claim 16: “The males produce millions of flowers, and each flower has hundreds of anthers that produce tons of pollen. The female trees produce seeds. They produce no pollen”
CORROBORATED
Multiple sources confirm the biological distinction that male trees produce pollen and female trees produce seeds/fruit and no pollen.
travel_explore
web search NEUTRAL — The female trees produce seeds. They produce no pollen,” he explained. But female trees do produce fruit and seeds, which litter sidewalks and streets, and that can get messy.
https://www.nbcwashington.com/news/health/how-male-trees-and…
travel_explore
web search NEUTRAL — “Female trees produce no pollen, but they trap and remove large amounts of pollen from the air, and turn it into seed. Female trees (and female shrubs are not just passive, but are active allergy-figh…
https://www.inverse.com/article/44691-male-trees-pollen-seas…
travel_explore
web search NEUTRAL — The stamens of the “male” trees therefore produce much more pollen than the “female” trees.Both kinds of trees are needed for continued health of the baobab populations. Without the pollen to provide …
https://theconversation.com/the-sex-organs-of-baobab-flowers…
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.