Acer campestre vs hedge maple

Acer campestre and hedge maple both are nouns.

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

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

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

Other synonyms of Acer campestre include field maple.

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