Chinese elm vs Ulmus parvifolia

Chinese elm and Ulmus parvifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chinese elm	Yes	No	No	No
Ulmus parvifolia	Yes	No	No	No

As nouns, Chinese elm and Ulmus parvifolia are synonyms defined as:

Chinese elm and Ulmus parvifolia: small fast-growing tree native to Asia; widely grown as shelterbelts and hedges

Chinese elm (noun)	Ulmus parvifolia (noun)
small fast-growing tree native to Asia; widely grown as shelterbelts and hedges	small fast-growing tree native to Asia; widely grown as shelterbelts and hedges
fast-growing shrubby Asian tree naturalized in United States for shelter or ornament