[1] This fungus only grows on limestone in northern Sicily in association with the common basilisk, Cachrys ferulacea (family Apiaceae).

[1] The characteristics of the mushroom are its creamy white to yellow colour, its diameter of between 5 and 20 centimeters (2 and 8 in), its extremely angled gills, and the breaking apart of the cap surface at maturity.

In 1886, French mycologist Lucien Quélet transferred the species to the genus Pleurotus.

Recent research has shown that P. nebrodensis is closely related to, but unique from, Pleurotus eryngii, which also occurs in the Mediterranean Basin and is also associated with plants in the family Apiaceae.

[3] Pleurotus nebrodensis was classified as critically endangered because it is found in an area of less than 100 square kilometers (39 sq mi), and the population has become fractured.