English ivy vs Hedera helix

English ivy and Hedera helix both are nouns.

Word	Noun	Adjective	Verb	Adverb
English ivy	Yes	No	No	No
Hedera helix	Yes	No	No	No

As nouns, English ivy and Hedera helix are synonyms defined as:

English ivy and Hedera helix: Old World vine with lobed evergreen leaves and black berrylike fruits

Other synonyms of English ivy include common ivy, ivy.

English ivy (noun)	Hedera helix (noun)
Old World vine with lobed evergreen leaves and black berrylike fruits	Old World vine with lobed evergreen leaves and black berrylike fruits