Siberian elm vs dwarf elm

Siberian elm and dwarf elm both are nouns.

Word	Noun	Adjective	Verb	Adverb
Siberian elm	Yes	No	No	No
dwarf elm	Yes	No	No	No

As nouns, Siberian elm and dwarf elm are synonyms defined as:

Siberian elm and dwarf elm: fast-growing shrubby Asian tree naturalized in United States for shelter or ornament

Other synonyms of Siberian elm include Chinese elm, Ulmus pumila.

Siberian elm (noun)	dwarf elm (noun)
fast-growing shrubby Asian tree naturalized in United States for shelter or ornament	fast-growing shrubby Asian tree naturalized in United States for shelter or ornament