贝形圆孢侧耳分布于北半球，属口蘑科一种，色通常为白色。另外，该种野菇也是木栖腐生的中小型菇类。此物种曾经认为可食用，但后来发现有毒。

• 周文能、张东柱，《野菇图鉴》，2005年，**，**馆出版社

Pleurocybella porrigens is a species of fungus in the Marasmiaceae family. The species is widespread in temperate forests of the Northern Hemisphere. P. porrigens, known as the angel wing, is a white-rot wood-decay fungus on conifer wood, particularly hemlock (genus Tsuga). The flesh is thin and fragile compared to the oyster mushrooms (Pleurotus ssp.).