furze vs Irish gorse

furze and Irish gorse both are nouns.

Word	Noun	Adjective	Verb	Adverb
furze	Yes	No	No	No
Irish gorse	Yes	No	No	No

As nouns, furze and Irish gorse are synonyms defined as:

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

Other synonyms of furze include gorse, Ulex europaeus, whin.

furze (noun)	Irish gorse (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