California white oak vs valley white oak

California white oak and valley white oak both are nouns.

Word	Noun	Adjective	Verb	Adverb
California white oak	Yes	No	No	No
valley white oak	Yes	No	No	No

As nouns, California white oak and valley white oak are synonyms defined as:

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

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

California white oak (noun)	valley white 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