gallberry vs Ilex glabra

gallberry and Ilex glabra both are nouns.

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

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

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

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

gallberry (noun)	Ilex glabra (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