swamp cottonwood vs Populus heterophylla

swamp cottonwood and Populus heterophylla both are nouns.

Word	Noun	Adjective	Verb	Adverb
swamp cottonwood	Yes	No	No	No
Populus heterophylla	Yes	No	No	No

As nouns, swamp cottonwood and Populus heterophylla are synonyms defined as:

swamp cottonwood and Populus heterophylla: North American poplar with large rounded scalloped leaves and brownish bark and wood

Other synonyms of swamp cottonwood include black cottonwood, downy poplar, swamp poplar.

swamp cottonwood (noun)	Populus heterophylla (noun)
North American poplar with large rounded scalloped leaves and brownish bark and wood	North American poplar with large rounded scalloped leaves and brownish bark and wood