Pacific plum vs Prunus subcordata

Pacific plum and Prunus subcordata both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pacific plum	Yes	No	No	No
Prunus subcordata	Yes	No	No	No

As nouns, Pacific plum and Prunus subcordata are synonyms defined as:

Pacific plum and Prunus subcordata: shrub of the Pacific coast of the United States bearing small red insipid fruit

Other synonyms of Pacific plum include Sierra plum.

Pacific plum (noun)	Prunus subcordata (noun)
shrub of the Pacific coast of the United States bearing small red insipid fruit	shrub of the Pacific coast of the United States bearing small red insipid fruit