Brewer's spruce vs weeping spruce

Brewer's spruce and weeping spruce both are nouns.

Word	Noun	Adjective	Verb	Adverb
Brewer's spruce	Yes	No	No	No
weeping spruce	Yes	No	No	No

As nouns, Brewer's spruce and weeping spruce are synonyms defined as:

Brewer's spruce and weeping spruce: medium-sized spruce of California and Oregon having pendulous branches

Other synonyms of Brewer's spruce include Picea breweriana.

Brewer's spruce (noun)	weeping spruce (noun)
medium-sized spruce of California and Oregon having pendulous branches	medium-sized spruce of California and Oregon having pendulous branches