Pleurotus ostreatus vs oyster fungus

Pleurotus ostreatus and oyster fungus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pleurotus ostreatus	Yes	No	No	No
oyster fungus	Yes	No	No	No

As nouns, Pleurotus ostreatus and oyster fungus are synonyms defined as:

Pleurotus ostreatus and oyster fungus: edible agaric with a soft greyish cap growing in shelving masses on dead wood

Other synonyms of Pleurotus ostreatus include oyster agaric, oyster mushroom.

Pleurotus ostreatus (noun)	oyster fungus (noun)
edible agaric with a soft greyish cap growing in shelving masses on dead wood	edible agaric with a soft greyish cap growing in shelving masses on dead wood