Japanese bittersweet vs oriental bittersweet

Japanese bittersweet and oriental bittersweet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japanese bittersweet	Yes	No	No	No
oriental bittersweet	Yes	No	No	No

As nouns, Japanese bittersweet and oriental bittersweet are synonyms defined as:

Japanese bittersweet and oriental bittersweet: ornamental Asiatic vine with showy orange-yellow fruit with a scarlet aril; naturalized in North America

Other synonyms of Japanese bittersweet include Celastric articulatus, Celastrus orbiculatus, Japan bittersweet.

Japanese bittersweet (noun)	oriental bittersweet (noun)
ornamental Asiatic vine with showy orange-yellow fruit with a scarlet aril; naturalized in North America	ornamental Asiatic vine with showy orange-yellow fruit with a scarlet aril; naturalized in North America