Ilex glabra vs gallberry

Ilex glabra and gallberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ilex glabra	Yes	No	No	No
gallberry	Yes	No	No	No

As nouns, Ilex glabra and gallberry are synonyms defined as:

Ilex glabra and gallberry: evergreen holly of eastern North America with oblong leathery leaves and small black berries

Other synonyms of Ilex glabra include evergreen winterberry, gall-berry, inkberry.

Ilex glabra (noun)	gallberry (noun)
evergreen holly of eastern North America with oblong leathery leaves and small black berries	evergreen holly of eastern North America with oblong leathery leaves and small black berries