Unless you’ve spent a lot of time in the woods of Massachusetts after dark, you might not know about the magical glowing fungus that is native to this state. 

The bitter oyster mushroom is truly a marvel of nature. Here’s what to look out for on your next midnight stroll through the forest. 

The bitter oyster mushroom, formally known as panellus stipticus, is a type of fungus that can be found throughout the forests of New England, including in Massachusetts.
Wikimedia Commons/Dan Molter
These mushrooms are pretty enough during daylight hours, but the true magic happens after dark.
Wikimedia Commons/Bjorn S.
They glow! This mesmerizing effect is known as bioluminescence and it can be seen with the naked eye.
Wikimedia Commons/Ylem

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The glow is caused by enzymes that react with a specific pigment – luciferin – to cause the gills to turn a vivid, light-emitting green.
Wikimedia Commons/Ylem
Be aware that capturing bioluminescence on film often involves long camera exposure times. This means that in real life, the glow may be slightly dimmer than what you see in these pictures. But it’s definitely still present!
It’s difficult to pinpoint exactly where you might find these fungi growing, as they can be found throughout the Northeast. Look for them on fallen logs, stumps, and the trunks of trees such as oak, beech, and birch.
Getty/Herbert Schlopp
You’ll also have more luck finding these shrooms in dense forest that is largely undisturbed, as the fungus prefers to develop on rotting wood low to the ground.
Getty/Kevin Trimmer
The next time you’re wandering the woods at dusk, keep your eyes peeled for some of these mystical mushrooms!
Wikimedia Commons/Byrain

Bitter oyster mushrooms are not poisonous, but they’re extremely bitter and can cause uncomfortable dryness of the mouth. 

Please note that you should never eat mushrooms or fungus that you find growing wild, even if you’re convinced that you know the species. Unless the fungus has been identified by a true expert (i.e. not Google), leave it where it’s growing. Many highly poisonous mushrooms look very similar to edible varieties. 

We hope we’ve inspired you to get out there and check out this magical fungus for yourself! Have you ever seen a glowing bitter oyster mushroom? Where did you spot it? Share your experiences in the comments!

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