
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?
A visit to Sri Lanka’s knockoff knockoff Uniqlo (no, we didn’t stutter) to see its rare “Pikachus”
Japan to get new high-speed train connecting Haneda and Narita airports, ease overtourism
7-Eleven Japan releases chocolate cookies that taste like freshly baked melon bread
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Japan moves to enforce language requirements for foreign nationals seeking permanent residency
How to cook shiitake mushrooms like a Japanese manga character
The quest for Dragon Quest Yoshinoya figure sets: Worth taking for fans, tricky for scalpers[Pics]
Japan announces plans for twenty-fold increase in permanent residency fees, alongside higher visa costs
Tokyo’s giant Pokémon Stamp Rally is back for 2026 with exclusive prizes up for grabs
One Piece docking at Round 1 amusement centers in both Japan and the USA
Japan triples departure tax, foreign tourists and locals now must pay more to leave country
Sanrio Character Poll announces winners, Hello Kitty absent from top 10 in many countries
Live-action Spirited Away stage play announces world tour with first-ever U.S. and Canadian dates
Japanese overnight sightseeing train returns for summer with ramen stops and ocean views
Tokyo has only two barley tea makers, and we visited one to see how mugicha is made
Starbucks Japan teams up with Converse Tokyo for a new limited-edition collection in honour of Tanabata
Don’t judge this Kiki’s Delivery Service book by its cover, because it’s not actually a book!
Sleep at Hoshinoya Nara Prison, one of the most unique hotels in Japan
Studio Ghibli combines anime and craftsmanship in new Totoro and Jiji Gobelin tapestry bags
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Studio Ghibli store Donguri Republic announces opening of first-ever store in America
New Japanese overnight train coming to connect Tokyo with Tohoku in sleep-travel style
Japan launches first overnight Shinkansen bullet train between Tokyo and Osaka this summer
Japanese sweets shop sells an ohagi so exquisite it sells out by noon
Forget Tokyo go-karts – there’s a new way to sightsee on four wheels in Japan
Japanese sweets brand creates new drinkable Cigare and we’re totally here for it
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
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa