Oyster
Pearl
Pearl oyster is the most common type of oyster mushroom. It has a creamy white cap and a long, thin stem. Pearl oyster mushrooms have a mild, slightly nutty flavor and are found in forests around the world.
King
King oyster is larger than the pearl oyster mushroom, with a thick, white stem and a light brown cap. King oyster mushrooms have a meaty texture and a slightly sweet flavor. They are found in forests in North America and Europe.
Elm
Elm oyster is similar to the pearl oyster mushroom, but it has a gray or brown cap. Elm oyster mushrooms have a mild, slightly woodsy flavor and are found in forests around the world.