swamp azalea vs Rhododendron viscosum

swamp azalea and Rhododendron viscosum both are nouns.

Word	Noun	Adjective	Verb	Adverb
swamp azalea	Yes	No	No	No
Rhododendron viscosum	Yes	No	No	No

As nouns, swamp azalea and Rhododendron viscosum are synonyms defined as:

swamp azalea and Rhododendron viscosum: shrub growing in swamps throughout the eastern United States and having small white to pinkish flowers resembling honeysuckle

Other synonyms of swamp azalea include swamp honeysuckle, white honeysuckle.

swamp azalea (noun)	Rhododendron viscosum (noun)
shrub growing in swamps throughout the eastern United States and having small white to pinkish flowers resembling honeysuckle	shrub growing in swamps throughout the eastern United States and having small white to pinkish flowers resembling honeysuckle