Bored Panda works better on our iPhone app

Continue in app Continue in browser

258

Scientist Discovers That “Tree Sexism” Might Be A Major Reason Behind Many Spring Allergies (Updated)

Interview With Author

ADVERTISEMENT

Nobody ever signed up for an allergy, but it creeps in spring after spring after spring. Trapped in a runny nose limbo, you look for a reason, scrolling miles in Google search like it was a long distance marathon. With few results.

Landscaping expert and allergy-friendly tree planning advocate Thomas Ogren has been studying the link between landscape plants and allergies for years. But when he started taking pics of trees to use as slides for talks, he couldn’t find any female ones. Thomas had to dig deeper to find the cause. And it turns out, the whole neighborhood was planted with male trees only as a result of a 1949 USDA Yearbook recommendation. That’s how Thomas’ “sexist trees” theory, which has now resurfaced thanks to the thread below, came about.

Scroll down for our interview with Thomas down below to see what else he had to say about his remarkable theory!

Update: This post incorrectly stated that the said scientist tried combating his wife’s allergies after buying a house together. He didn’t buy a house and it was not his wife’s allergies that was the main reason behind his research

More info: Allergy-FreeGardening.com

Twitter user Antonia recounted Ogren’s theory of allergy in a now-viral thread

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

ADVERTISEMENT

Bored Panda spoke to Thomas about how he found that that male trees cause more allergy. After Thomas started taking close-up photos of flowers of different species of trees, he realized that only the male trees made the pollen. “I wanted to get photos of both male flowers and female flowers to show as slides at these talks.” But he couldn’t find any female trees.

Contrary to what the thread claims, Thomas himself didn’t buy a house for his allergy-prone wife. He was walking down a street with his camera when he came upon a house with a large native coyote bush in bloom.

“As I started taking photos of the flowers, a man came out and asked me ‘What’s so interesting about my yard?’” Thomas told him how his groundcover was all male and producing pollen, which is allergenic. He recounted: “’Hmmm,’ the man said, ‘I wonder if that’s why my wife’s allergies are so bad?'”

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

ADVERTISEMENT

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

Around this time, Thomas read the 1949 USDA Yearbook, called “Trees.” “In the section about red maples, I read this advice: since these trees are all separate-sexed (dioecious), if you take all your scion wood (for grafting) only from male trees, then all the trees you produce to sell will be seedless and litter-free,” he explained.

He soon found the same phenomena in other towns nearby. And eventually, “I found this held true almost everywhere in the world I went: England, Israel, Canada, New Zealand, Australia. All their city landscapes were male-dominant,” said Thomas.

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

ADVERTISEMENT

Image credits: Flaminhaystack

ADVERTISEMENT

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

According to Thomas, the beauty of female plants is that “they never shed any pollen, ever.” Plus, “female plants trap and remove pollen from the air.” But since there are so many pollen-pumping males in cities, “the pollen has nowhere to go… except up our noses.”Thomas summed up that “Botanical sexism is alive and well, alas, and with it, allergy and allergic-asthma continue to get worse and ever more common.”

Thomas wrote about his life-long research on plants and allergies in the book titled “Allergy-Free Gardening.”

Antonia shared some solid facts for people on Twitter who couldn’t believe it’s real

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

ADVERTISEMENT

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

She also posted a recommendation from the European Commission to plant more female trees

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Flaminhaystack

The Centers for Disease Control and Prevention reports that more than 25 million Americans—7.7 percent of adults and 8.4 percent of children—have asthma. According to WHO estimates, approximately 250,000 people die prematurely each year from asthma around the world.

Many were left stunned by this remarkable explanation

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: IncognitoPengy

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

ADVERTISEMENT

Image credits: Flaminhaystack

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: JakxEliades

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: YuehNing3

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: amateuradam

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: JeanetteHall9

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: JeanetteHall9

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: Clo_vdn

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

ADVERTISEMENT

Image credits: thegratefulgran

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: SarahJay55

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: cvhdavidblues

Scientist Discovers That "Tree Sexism" Might Be A Major Reason Behind Many Spring Allergies (Updated)

Image credits: AdriaenMorse

Liucija Adomaite

Liucija Adomaite is a creative mind with years of experience in copywriting. She has a dynamic set of experiences from advertising, academia, and journalism. This time, she has set out on a journey to investigate the ways in which we communicate ideas on a large scale. Her current mission is to find a magic formula for how to make ideas, news, and other such things spread like a virus.

Liucija Adomaite is a creative mind with years of experience in copywriting. She has a dynamic set of experiences from advertising, academia, and journalism. This time, she has set out on a journey to investigate the ways in which we communicate ideas on a large scale. Her current mission is to find a magic formula for how to make ideas, news, and other such things spread like a virus.

Justinas Keturka

I'm the Visual Editor at Bored Panda, responsible for ensuring that everything our audience sees is top-notch and well-researched. What I love most about my job? Discovering new things about the world and immersing myself in exceptional photography and art.

I'm the Visual Editor at Bored Panda, responsible for ensuring that everything our audience sees is top-notch and well-researched. What I love most about my job? Discovering new things about the world and immersing myself in exceptional photography and art.

What do you think ?

Charlotte 4 years ago

I'm surprised how many people don't know about plant gender - we covered it at school, in year 7 or 8. Round about the same time you do sexual vs asexual reproduction and draw diagrams of stamens and anthers and stuff.

17points

Lily Mae Kitty 4 years ago

right?!? What drives me mad is all the people posting those nonsense "pick a male watermelon" posts, as if that's possible. Fruit and veggies don't have gender-just the plants.

7points

Load More Replies...

Monika Soffronow 4 years ago

Funny how most everybody seems to concentrate on the biology of trees in the comments. I find it far more interesting to ponder over the possibility of very large lawsuits with asthmatic and allergic people taking their city governments to court over the health hazards brought solely by a planning decision to plant only male trees. No fruit or seeds on the ground versus people suffering with health problems. Interesting.

8points

Falcon 4 years ago

Yea, I was thinking the same thing. I imagine it would have a pretty high chance of succeeding as well since it was done because of laziness rather than need.

2points

Load More Replies...

DamnBecky 4 years ago

My parents had this issue with our fruit trees. They hired a landscaper when we built our house and we were supposed to have row of apple, peach and lemon trees in the backyard. Apparently the landscaper was an idiot bc they ONLY planted male trees. It took my parents a decade to figure out what was going on and why they NEVER had any fruit.

6points

Sanne H. 4 years ago

My parents had the opposite. They planted a kiwi tree in their garden (a gift from a family member from New Zealand) assuming that it would never grow fruit. But it did! Turned out that one of the neighbours had a plant of the opposite sex.

5points

Load More Replies...

NMN 4 years ago

Sorry, but those plants are monoiceus, they don't have different sexes.

1point

DamnBecky 4 years ago

Thanks to everyone who updated me on how those trees worked. I was a kid and my parents always said it was a gender issue. Eitherway, we never had ANY fruit.

0points

Seabeast 4 years ago

Apple, peach, and lemon trees don't come in separate male and female versions. To get cross-pollination you need two different varieties, but both will get fruit. The flowers have both pistols and stamens. It sounds like the landscaper only planted one of each, or several all the same variety.

0points

Load More Comments

Charlotte 4 years ago

I'm surprised how many people don't know about plant gender - we covered it at school, in year 7 or 8. Round about the same time you do sexual vs asexual reproduction and draw diagrams of stamens and anthers and stuff.

17points

Lily Mae Kitty 4 years ago

right?!? What drives me mad is all the people posting those nonsense "pick a male watermelon" posts, as if that's possible. Fruit and veggies don't have gender-just the plants.

7points

Load More Replies...

Monika Soffronow 4 years ago

Funny how most everybody seems to concentrate on the biology of trees in the comments. I find it far more interesting to ponder over the possibility of very large lawsuits with asthmatic and allergic people taking their city governments to court over the health hazards brought solely by a planning decision to plant only male trees. No fruit or seeds on the ground versus people suffering with health problems. Interesting.

8points

Falcon 4 years ago

Yea, I was thinking the same thing. I imagine it would have a pretty high chance of succeeding as well since it was done because of laziness rather than need.

2points

Load More Replies...

DamnBecky 4 years ago

My parents had this issue with our fruit trees. They hired a landscaper when we built our house and we were supposed to have row of apple, peach and lemon trees in the backyard. Apparently the landscaper was an idiot bc they ONLY planted male trees. It took my parents a decade to figure out what was going on and why they NEVER had any fruit.

6points

Sanne H. 4 years ago

My parents had the opposite. They planted a kiwi tree in their garden (a gift from a family member from New Zealand) assuming that it would never grow fruit. But it did! Turned out that one of the neighbours had a plant of the opposite sex.

5points

Load More Replies...

NMN 4 years ago

Sorry, but those plants are monoiceus, they don't have different sexes.

1point

DamnBecky 4 years ago

Thanks to everyone who updated me on how those trees worked. I was a kid and my parents always said it was a gender issue. Eitherway, we never had ANY fruit.

0points

Seabeast 4 years ago

Apple, peach, and lemon trees don't come in separate male and female versions. To get cross-pollination you need two different varieties, but both will get fruit. The flowers have both pistols and stamens. It sounds like the landscaper only planted one of each, or several all the same variety.

0points

Load More Comments

Related on Bored Panda

Related on Bored Panda

Trending on Bored Panda

Also on Bored Panda