Oregon myrtle vs California olive

Oregon myrtle and California olive both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oregon myrtle	Yes	No	No	No
California olive	Yes	No	No	No

As nouns, Oregon myrtle and California olive are synonyms defined as:

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

Oregon myrtle (noun)	California olive (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