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

"We want to remind growers that not all cultivated fungi stay where we put them. Once released outdoors, even accidentally, the golden oyster mushroom can spread quickly and outcompete native species," said Jusino.

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

The pita bread was thick, warm and fluffy, and the fried oyster mushroom had a texture similar to fried onions, topped with sliced cucumbers, pickled onions, shredded lettuce and a generous drizzling of aji amarillo.

From Los Angeles Times • Apr. 18, 2023

When a worm makes the mistake of passing over the fungus, the oyster mushroom paralyzes and kills it, devouring the animal’s nitrogen-rich flesh with root-like tendrils called hyphae.

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