oyster agaric vs Pleurotus ostreatus

oyster agaric and Pleurotus ostreatus both are nouns.

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

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

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

Other synonyms of oyster agaric include oyster fungus, oyster mushroom.

oyster agaric (noun)	Pleurotus ostreatus (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