Oriental black mushroom vs shiitake mushroom

Oriental black mushroom and shiitake mushroom both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oriental black mushroom	Yes	No	No	No
shiitake mushroom	Yes	No	No	No

As nouns, Oriental black mushroom and shiitake mushroom are synonyms defined as:

Oriental black mushroom and shiitake mushroom: edible east Asian mushroom having a golden or dark brown to blackish cap and an inedible stipe

Other synonyms of Oriental black mushroom include Chinese black mushroom, golden oak mushroom, Lentinus edodes, shiitake.

Oriental black mushroom (noun)	shiitake mushroom (noun)
edible east Asian mushroom having a golden or dark brown to blackish cap and an inedible stipe	edible east Asian mushroom having a golden or dark brown to blackish cap and an inedible stipe