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.). Pleurocybella porrigens has historically been generally regarded as edible but this has been brought into question by recent deaths apparently associated with P. porrigens consumption.