Irish gorse vs Ulex europaeus

Irish gorse and Ulex europaeus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Irish gorse	Yes	No	No	No
Ulex europaeus	Yes	No	No	No

As nouns, Irish gorse and Ulex europaeus are synonyms defined as:

Irish gorse and Ulex europaeus: very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe

Other synonyms of Irish gorse include furze, gorse, whin.

Irish gorse (noun)	Ulex europaeus (noun)
very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe	very spiny and dense evergreen shrub with fragrant golden-yellow flowers; common throughout western Europe