
No, fairy magic is not the reason for this stunning phenomenon.
It’s common knowledge that you can tell a tree’s age by its growth rings. Look at a cross section of the trunk, count the rings, and you’ll know how many years old the tree is.
So imagine the shock when a friend of Japanese Twitter user @kinjiro7106’s coworker chopped down a tree and discovered it to be “rose years old.”
https://twitter.com/kinjiro7106/status/1237947768695451654Okay, so maybe its age was peony years old. Either way though, that definitely looks like an illustrated flower concealed at the tree’s core, as though it were a physically manifested metaphor for the artistic spirit, and the amazing sight has prompted reactions such as:
“Amazing. It’s like a miracle.”
“That would make a really awesome desk.”
“It’s like the tree has a tattoo!”
“I think it looks like a turtle.”
“This reminds me of Kintaro Ame [the Japanese candy with illustrated cross sections].”
“I know this…it’s the mark showing the entrance to the fairy realm, which appears only once every 300 years in the forest on the night of the full moon.”
As whimsical as that last theory is, the truth is a lot less ethereal, and quite a bit grosser. As explained in this tweet from botany enthusiast @kusaiyajingoku…
うへぇ~!こりゃおでれぇた!バラそっくりな模様だな!
— 【今いねぇ!】やけに植物に詳しい悟空 (@kusaiyajingoku) March 12, 2020
この線は木を分解するキノコの菌糸がぶつかり合った境目で、帯線っちゅうんだ!
線から内側が1個のコロニーのナワバリって感じで、勢力争いしてる感じだな!
木をメシにしてるキノコたちは、こんなふうに他のキノコと闘ってんだ!すげぇよな! https://t.co/MH1mi8m67u
…what we’re seeing in the cross section of the tree aren’t the petals of a flower, but actually fungus colonies. Basically, there were a bunch of mushrooms growing inside the tree, devouring it from the inside, and the lines are simply the borders between the fighting fungi factions competing for territory.
While it’s a phenomenon most people don’t know about, it’s not entirely without precedent, as shown in these photos from back in December.
https://twitter.com/uekiya_com/status/1208305793432338433So no, there’s no magic at work here, just super-efficient survival science. But on the other hand, who knew fungus could be so beautiful?
Source: Twitter/@kinjiro7106 via Hachima Kiko
Top image: Pakutaso
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!

Sacred 1,200-year-old tree toppled by severe storm at shrine in central Japan【Photos】
Oh shiitake! How to grow your own with Japan’s super-easy mushroom cultivation kit【Photos】
Japan has a “Totoro Tree” that looks just like the Studio Ghibli anime star【Photos】
Cherry blossoms are blooming in Japan in October, but why?
Japan now has a “for foreign tourists only” Mt. Fuji sightseeing train[Video]
Studio Ghibli releases the My Neighbour Totoro tea caddy, with a magical self-closing lid
Fake police phone scam also highlights dumb stereotype about how foreigners speak Japanese[Video]
7-Eleven Japan releases a crazy new viral sandwich: Chocolate Sprinkles and Whipped Cream
Awesome Ghibli Howl’s Moving Castle figure is also a puzzle and an organizer[Photos]
Create a tiny Ghibli anime world on your bookshelf with new miniature papercraft art kits
Nissin Donbei to sell Classic line of instant udon and soba noodles for its 50th anniversary
Should you warm up your convenience store onigiri rice balls in the microwave?【Taste test】
Nissin develops revolution in chewiness with 8-minute instant udon made with “mochi wheat”
Don Quijote now sells a bento of American corn dog ends
Starbucks Japan releases new My Fruit³ Frappuccino at only 34 stores around the country
Japanese onsen egg maker from 100-yen store Daiso needs to be on your shopping list
Cherry blossoms begin blooming in Japan with record-early starts for sakura season
Tokyo government organizes food truck event to clear out delinquent/homeless teen gathering area
Nine amazing off-the-beaten-path cherry blossom spots in Japan for yaezakura and shidarezakura
Stunning central Japan wisteria festival is like a purple fantasy straight out of a Ghibli movie
When will the cherry blossoms reach full bloom in Japan this year?[Forecast]
Studio Ghibli unveils new Rollbahn notebook in honour of Howl’s Moving Castle
Studio Ghibli adds new anime tumblers to its cool streetwear brand in Japan
Universal Studios’ Sailor Moon theme park attraction is finally coming to America
Starbucks Japan unveils new sakura cherry blossom collection for hanami season 2026
Train station platform ramen store closes its doors on half a century of history in Tokyo
Studio Ghibli releases Catbus pullback keychain that runs like the anime character
Nine great places to see spring flowers in Japan, as chosen by travelers (with almost no sakura)
Starbucks Japan releases first-ever Hinamatsuri Girls’ Day Frappuccino
Studio Ghibli adds new Mother’s Day gift sets to its anime collection in Japan
Virtual idol Hatsune Miku redesigned with look that adds new elements and brings back old ones
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says