California white fir vs Colorado fir

California white fir and Colorado fir both are nouns.

Word	Noun	Adjective	Verb	Adverb
California white fir	Yes	No	No	No
Colorado fir	Yes	No	No	No

As nouns, California white fir and Colorado fir are synonyms defined as:

California white fir and Colorado fir: medium to tall fir of central to western United States having a narrow erect crown and soft wood

Other synonyms of California white fir include Abies concolor, Abies lowiana, white fir.

California white fir (noun)	Colorado fir (noun)
medium to tall fir of central to western United States having a narrow erect crown and soft wood	medium to tall fir of central to western United States having a narrow erect crown and soft wood