Spanish heath vs Portuguese heath

Spanish heath and Portuguese heath both are nouns.

Word	Noun	Adjective	Verb	Adverb
Spanish heath	Yes	No	No	No
Portuguese heath	Yes	No	No	No

As nouns, Spanish heath and Portuguese heath are synonyms defined as:

Spanish heath and Portuguese heath: erect dense shrub native to western Iberian peninsula having profuse white or pink flowers; naturalized in southwestern England

Other synonyms of Spanish heath include Erica lusitanica.

Spanish heath (noun)	Portuguese heath (noun)
erect dense shrub native to western Iberian peninsula having profuse white or pink flowers; naturalized in southwestern England	erect dense shrub native to western Iberian peninsula having profuse white or pink flowers; naturalized in southwestern England