sweet gale vs Myrica gale

sweet gale and Myrica gale both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet gale	Yes	No	No	No
Myrica gale	Yes	No	No	No

As nouns, sweet gale and Myrica gale are synonyms defined as:

sweet gale and Myrica gale: bog shrub of north temperate zone having bitter-tasting fragrant leaves

Other synonyms of sweet gale include Scotch gale.

sweet gale (noun)	Myrica gale (noun)
bog shrub of north temperate zone having bitter-tasting fragrant leaves	bog shrub of north temperate zone having bitter-tasting fragrant leaves