blue ash vs Fraxinus quadrangulata

blue ash and Fraxinus quadrangulata both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue ash	Yes	No	No	No
Fraxinus quadrangulata	Yes	No	No	No

As nouns, blue ash and Fraxinus quadrangulata are synonyms defined as:

blue ash and Fraxinus quadrangulata: ash of central and southern United States with bluish-green foliage and hard brown wood

blue ash (noun)	Fraxinus quadrangulata (noun)
ash of central and southern United States with bluish-green foliage and hard brown wood	ash of central and southern United States with bluish-green foliage and hard brown wood