Prunus subcordata vs Pacific plum

Prunus subcordata and Pacific plum both are nouns.

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

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

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

Other synonyms of Prunus subcordata include Sierra plum.

Prunus subcordata (noun)	Pacific plum (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