blackheart vs blackheart cherry

blackheart and blackheart cherry both are nouns.

Word	Noun	Adjective	Verb	Adverb
blackheart	Yes	No	No	No
blackheart cherry	Yes	No	No	No

As nouns, blackheart and blackheart cherry are synonyms defined as:

blackheart (noun)	blackheart cherry (noun)
heart cherry with dark flesh and skin	heart cherry with dark flesh and skin
any of various diseases in which the central tissues blacken