Hedera helix vs English ivy

Hedera helix and English ivy both are nouns.

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

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

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

Other synonyms of Hedera helix include common ivy, ivy.

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