Malus ioensis vs prairie crab

Malus ioensis and prairie crab both are nouns.

Word	Noun	Adjective	Verb	Adverb
Malus ioensis	Yes	No	No	No
prairie crab	Yes	No	No	No

As nouns, Malus ioensis and prairie crab are synonyms defined as:

Malus ioensis and prairie crab: wild crab apple of western United States with fragrant pink flowers

Other synonyms of Malus ioensis include Iowa crab, Iowa crab apple, western crab apple.

Malus ioensis (noun)	prairie crab (noun)
wild crab apple of western United States with fragrant pink flowers	wild crab apple of western United States with fragrant pink flowers