California olive vs Umbellularia californica

California olive and Umbellularia californica both are nouns.

Word	Noun	Adjective	Verb	Adverb
California olive	Yes	No	No	No
Umbellularia californica	Yes	No	No	No

As nouns, California olive and Umbellularia californica are synonyms defined as:

California olive and Umbellularia californica: Pacific coast tree having aromatic foliage and small umbellate flowers followed by olivelike fruit; yields a hard tough wood

California olive (noun)	Umbellularia californica (noun)
Pacific coast tree having aromatic foliage and small umbellate flowers followed by olivelike fruit; yields a hard tough wood	Pacific coast tree having aromatic foliage and small umbellate flowers followed by olivelike fruit; yields a hard tough wood