Botanical Sexism Isn't Real, It's Marketing

Every spring people ask me about botanical sexism. I made this video so I can just send them the link

Captions will be posted a day or two after publishing!

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Sources:

Tom Ogren's own study that shows overprinting of male trees is NOT responsible for increasing allergies, and removing male trees will not help allergy sufferers

Grass & ragweed, not trees, are responsible for most people's pollen allergiesand

OPALS allergy rating system (created by the guy behind botanical sexism) is one of the least useful. There are multiple pollen allergen rating systems that work better.

Another review of different pollen allergenicity rating systems, including OPALS, again showing that OPALS performs poorly

Ginkgo fruit poisonous to fish

Ginkgo fruit & seed toxicity for humans

Selfincompatibility genes graphic

Korea ginkgo allergy study

Ginkgo gamete micrographs

Ginkgoes and "ghost mutualism"a living fossil tree whose seed dispersers are mostly extinct

How ginkgo pollen actually works

Testosterone was first discovered in pollen

Non-scientific sources:

Mel Magazine article (source for quotes on ginkgo gametes, testosterone in pollen, "marks," and Dr. Sheila McCormick): melmagazine.com/en-us/story/the-horticulturalist-whose-lifes-work-is-to-end-botanical-sexism

Boxers:

Letter to the editor in Scientific American (nonpeer reviewed)

Chapters

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