Quercus lobata vs valley oak

Quercus lobata and valley oak both are nouns.

Word	Noun	Adjective	Verb	Adverb
Quercus lobata	Yes	No	No	No
valley oak	Yes	No	No	No

As nouns, Quercus lobata and valley oak are synonyms defined as:

Quercus lobata and valley oak: tall graceful deciduous California oak having leathery leaves and slender pointed acorns

Other synonyms of Quercus lobata include California white oak, roble, valley white oak.

Quercus lobata (noun)	valley oak (noun)
tall graceful deciduous California oak having leathery leaves and slender pointed acorns	tall graceful deciduous California oak having leathery leaves and slender pointed acorns