shadbush vs serviceberry

shadbush and serviceberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
shadbush	Yes	No	No	No
serviceberry	Yes	No	No	No

As nouns, shadbush and serviceberry are synonyms defined as:

shadbush and serviceberry: any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit

Other synonyms of shadbush include Juneberry, service tree, shadblow.

shadbush (noun)	serviceberry (noun)
any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit	edible purple or red berries
	any of various North American trees or shrubs having showy white flowers and edible blue-black or purplish fruit