coffeeberry vs Rhamnus californicus

coffeeberry and Rhamnus californicus both are nouns.

Word	Noun	Adjective	Verb	Adverb
coffeeberry	Yes	No	No	No
Rhamnus californicus	Yes	No	No	No

As nouns, coffeeberry and Rhamnus californicus are synonyms defined as:

coffeeberry and Rhamnus californicus: evergreen shrub of western United States bearing small red or black fruits

Other synonyms of coffeeberry include California buckthorn, California coffee.

coffeeberry (noun)	Rhamnus californicus (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