oyster mushroom

American  

noun

1. oyster cap.

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oyster mushroom British  

noun

1. an edible fungus, Pleurotus ostreatus, having an oyster-shaped cap, commonly found growing in clusters on the trunks of broad-leaved trees

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Etymology

Origin of oyster mushroom

First recorded in 1870–75

Example Sentences

"The golden oyster mushroom may look harmless on a log, but it appears to be a strong competitor in the forest," she said.

From Science Daily • Apr. 24, 2026

The oyster mushroom produces chemicals to paralyze its nematode prey within a few minutes of contact.

From National Geographic • Dec. 12, 2023

Here are Mueller’s recommendations for expanding your oyster mushroom kit into two or three kits to grow at home:

From Los Angeles Times • Feb. 1, 2023

But fungi, too, have an appetite for flesh, and it’s not just the oyster mushroom, although it is the only carnivorous fungus you’ll generally find in your grocery store.

From New York Times • Jan. 18, 2023

Of the two well known types of mushrooms, the button mushroom is more prone to disease whereas the oyster mushroom is hardier.

From Free from School by Alvares, Rahul