common ivy vs Hedera helix

common ivy and Hedera helix both are nouns.

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

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

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

Other synonyms of common ivy include English ivy, ivy.

common 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