garland crab vs Malus coronaria

garland crab and Malus coronaria both are nouns.

Word	Noun	Adjective	Verb	Adverb
garland crab	Yes	No	No	No
Malus coronaria	Yes	No	No	No

As nouns, garland crab and Malus coronaria are synonyms defined as:

garland crab and Malus coronaria: medium-sized tree of the eastern United States having pink blossoms and small yellow fruit

Other synonyms of garland crab include American crab apple.

garland crab (noun)	Malus coronaria (noun)
medium-sized tree of the eastern United States having pink blossoms and small yellow fruit	medium-sized tree of the eastern United States having pink blossoms and small yellow fruit