Abies concolor vs Colorado fir

Abies concolor and Colorado fir both are nouns.

Word	Noun	Adjective	Verb	Adverb
Abies concolor	Yes	No	No	No
Colorado fir	Yes	No	No	No

As nouns, Abies concolor and Colorado fir are synonyms defined as:

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

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

Abies concolor (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