flowering ash vs Fraxinus cuspidata

flowering ash and Fraxinus cuspidata both are nouns.

Word	Noun	Adjective	Verb	Adverb
flowering ash	Yes	No	No	No
Fraxinus cuspidata	Yes	No	No	No

As nouns, flowering ash and Fraxinus cuspidata are synonyms defined as:

flowering ash and Fraxinus cuspidata: shrubby ash of southwestern United States having fragrant white flowers

flowering ash (noun)	Fraxinus cuspidata (noun)
southern Mediterranean ash having fragrant white flowers in dense panicles and yielding manna	shrubby ash of southwestern United States having fragrant white flowers
shrubby ash of southwestern United States having fragrant white flowers
shrubby California ash with showy off-white flowers