Japanese ivy vs Boston ivy

Japanese ivy and Boston ivy both are nouns.

Word	Noun	Adjective	Verb	Adverb
Japanese ivy	Yes	No	No	No
Boston ivy	Yes	No	No	No

As nouns, Japanese ivy and Boston ivy are synonyms defined as:

Japanese ivy and Boston ivy: Asiatic vine with three-lobed leaves and purple berries

Other synonyms of Japanese ivy include Parthenocissus tricuspidata.

Japanese ivy (noun)	Boston ivy (noun)
Asiatic vine with three-lobed leaves and purple berries	Asiatic vine with three-lobed leaves and purple berries