fir vs Abies bracteata

fir and Abies bracteata both are nouns.

Word	Noun	Adjective	Verb	Adverb
fir	Yes	No	No	No
Abies bracteata	Yes	No	No	No

As nouns, Abies bracteata is a hyponym of fir; that is, Abies bracteata is a word with a more specific, narrower meaning than fir:

fir: any of various evergreen trees of the genus Abies; chiefly of upland areas
Abies bracteata: a pyramidal fir of southwestern California having spiny pointed leaves and cone scales with long spines

Other hyponyms of fir include silver fir, Abies venusta, bristlecone fir, Santa Lucia fir.

fir (noun)	Abies bracteata (noun)
any of various evergreen trees of the genus Abies; chiefly of upland areas	a pyramidal fir of southwestern California having spiny pointed leaves and cone scales with long spines
nonresinous wood of a fir tree