Acer campestre vs field maple

Acer campestre and field maple both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acer campestre	Yes	No	No	No
field maple	Yes	No	No	No

As nouns, Acer campestre and field maple are synonyms defined as:

Acer campestre and field maple: shrubby Eurasian maple often used as a hedge

Other synonyms of Acer campestre include hedge maple.

Acer campestre (noun)	field maple (noun)
shrubby Eurasian maple often used as a hedge	shrubby Eurasian maple often used as a hedge