bearberry vs chittimwood

bearberry and chittimwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
bearberry	Yes	No	No	No
chittimwood	Yes	No	No	No

As nouns, bearberry and chittimwood are synonyms defined as:

bearberry and chittimwood: shrubby tree of the Pacific coast of the United States; yields cascara sagrada

Other synonyms of bearberry include bearwood, cascara buckthorn, chittamwood, Rhamnus purshianus.

bearberry (noun)	chittimwood (noun)
chiefly evergreen subshrubs of northern to Arctic areas	deciduous tree of southeastern United States and Mexico
deciduous shrub of southeastern and central United States	shrubby tree of the Pacific coast of the United States; yields cascara sagrada
shrubby tree of the Pacific coast of the United States; yields cascara sagrada