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

These records allowed them to map sightings of the golden oyster mushroom across North America.

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

“Somebody sees this thing and they think it looks wild and extraterrestrial,” she said, “but it’s a pink oyster mushroom that cooks beautifully into something that tastes like barbecue pork.”

From Washington Post • Apr. 13, 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