oyster mushroomoyster mushroom
any of various fan-shaped mushrooms having gills, esp. an edible one (Pleurotus ostreatus) with a short, pale-colored stem, that grows on tree trunks
Origin of oyster mushroomfrom resemblance of its cap to an oyster shell
Any of several edible mushrooms of the genus Pleurotus, having a soft, flavorful, grayish cap.