Quercus texana vs Spanish oak

Quercus texana and Spanish oak both are nouns.

Word	Noun	Adjective	Verb	Adverb
Quercus texana	Yes	No	No	No
Spanish oak	Yes	No	No	No

As nouns, Quercus texana and Spanish oak are synonyms defined as:

Quercus texana and Spanish oak: small deciduous tree having the trunk branched almost from the base with spreading branches; Texas and southern Oklahoma

Quercus texana (noun)	Spanish oak (noun)
small deciduous tree having the trunk branched almost from the base with spreading branches; Texas and southern Oklahoma	small deciduous tree having the trunk branched almost from the base with spreading branches; Texas and southern Oklahoma