black raspberry vs blackcap

black raspberry and blackcap both are nouns.

Word	Noun	Adjective	Verb	Adverb
black raspberry	Yes	No	No	No
blackcap	Yes	No	No	No

As nouns, black raspberry and blackcap are synonyms defined as:

black raspberry and blackcap: raspberry native to eastern North America having black thimble-shaped fruit

Other synonyms of black raspberry include blackcap raspberry, Rubus occidentalis, thimbleberry.

black raspberry (noun)	blackcap (noun)
raspberry native to eastern North America having black thimble-shaped fruit	small brownish-grey warbler with a black crown
	chickadee having a dark crown
	small black-headed European gull
	raspberry native to eastern North America having black thimble-shaped fruit