blackcap raspberry vs black raspberry

blackcap raspberry and black raspberry both are nouns.

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

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

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

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

blackcap raspberry (noun)	black raspberry (noun)
raspberry native to eastern North America having black thimble-shaped fruit	raspberry native to eastern North America having black thimble-shaped fruit