Aster ericoides vs heath aster

Aster ericoides and heath aster both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aster ericoides	Yes	No	No	No
heath aster	Yes	No	No	No

As nouns, Aster ericoides and heath aster are synonyms defined as:

Aster ericoides and heath aster: common much-branched North American perennial with heathlike foliage and small starry white flowers

Aster ericoides (noun)	heath aster (noun)
common much-branched North American perennial with heathlike foliage and small starry white flowers	common much-branched North American perennial with heathlike foliage and small starry white flowers
	common North American perennial with heathlike foliage and small white flower heads