Pacific silver fir vs red silver fir

Pacific silver fir and red silver fir both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pacific silver fir	Yes	No	No	No
red silver fir	Yes	No	No	No

As nouns, Pacific silver fir and red silver fir are synonyms defined as:

Pacific silver fir and red silver fir: medium to tall fir of western North America having a conic crown and branches in tiers; leaves smell of orange when crushed

Other synonyms of Pacific silver fir include Abies amabilis, amabilis fir, Christmas tree, white fir.

Pacific silver fir (noun)	red silver fir (noun)
medium to tall fir of western North America having a conic crown and branches in tiers; leaves smell of orange when crushed	medium to tall fir of western North America having a conic crown and branches in tiers; leaves smell of orange when crushed