swamp bay vs swamp laurel

swamp bay and swamp laurel both are nouns.

Word	Noun	Adjective	Verb	Adverb
swamp bay	Yes	No	No	No
swamp laurel	Yes	No	No	No

As nouns, swamp bay and swamp laurel are synonyms defined as:

swamp bay and swamp laurel: shrub or small tree having rather small fragrant white flowers; abundant in southeastern United States

Other synonyms of swamp bay include Magnolia virginiana, sweet bay.

swamp bay (noun)	swamp laurel (noun)
shrub or small tree having rather small fragrant white flowers; abundant in southeastern United States	laurel of bogs of northwestern United States having small purple flowers and pale leaves that are glaucous beneath
	shrub or small tree having rather small fragrant white flowers; abundant in southeastern United States