oyster mushroom
noun
1- a widely distributed edible fungus which has a greyish-brown oyster-shaped cap and a very short or absent stem, growing on the wood of broadleaved trees and causing rot糙皮侧耳。
1.1
- Pleurotus ostreatus, family Pleurotaceae, class Hymenomycetes.拉丁名Pleurotus ostreatus,侧耳科, 层菌纲。