As for poisonous mushrooms, even ones that have been included in field guides and already had their safety confirmed can, starting from a certain season, change into poisonous mushrooms, and why th…
Even mushrooms already included in field guides and confirmed to be safe can, from a certain season, change into poisonous mushrooms, and why such a thing happens is said to be a mystery even among researchers.
This case is part of the Mandela Effect case database based on "The Window of Opportunity: A Guidepost to the Mandela Effect — The Ultra-Secret X-Files" by Aoyama Takuto.