Ulmus glabra vs witch elm

Ulmus glabra and witch elm both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ulmus glabra	Yes	No	No	No
witch elm	Yes	No	No	No

As nouns, Ulmus glabra and witch elm are synonyms defined as:

Other synonyms of Ulmus glabra include wych elm.

Ulmus glabra (noun)	witch elm (noun)
Eurasian elm often planted as a shade tree	Eurasian elm often planted as a shade tree