noun
oyster mushroom
Refers specifically to Pleurotus ostreatus, a common edible mushroom.
ヒラタケは炒め物にすると美味しい。
Oyster mushrooms are delicious when stir-fried.
この辺りの山では秋にヒラタケが採れる。
In the mountains around here, you can pick oyster mushrooms in autumn.
The name ヒラタケ (平茸) literally means 'flat mushroom', from its broad, flat cap shape. The exact historical derivation is uncertain.