Iowa crab vs Malus ioensis

Iowa crab and Malus ioensis both are nouns.

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

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

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

Other synonyms of Iowa crab include Iowa crab apple, prairie crab, western crab apple.

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