cross-leaved heath vs Erica tetralix

cross-leaved heath and Erica tetralix both are nouns.

Word	Noun	Adjective	Verb	Adverb
cross-leaved heath	Yes	No	No	No
Erica tetralix	Yes	No	No	No

As nouns, cross-leaved heath and Erica tetralix are synonyms defined as:

cross-leaved heath and Erica tetralix: dwarf European shrub with rose-colored flowers

Other synonyms of cross-leaved heath include bell heather.

cross-leaved heath (noun)	Erica tetralix (noun)
dwarf European shrub with rose-colored flowers	dwarf European shrub with rose-colored flowers