California coffee vs coffeeberry

California coffee and coffeeberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
California coffee	Yes	No	No	No
coffeeberry	Yes	No	No	No

As nouns, California coffee and coffeeberry are synonyms defined as:

California coffee and coffeeberry: evergreen shrub of western United States bearing small red or black fruits

Other synonyms of California coffee include California buckthorn, Rhamnus californicus.

California coffee (noun)	coffeeberry (noun)
evergreen shrub of western United States bearing small red or black fruits	evergreen shrub of western United States bearing small red or black fruits