northern pin oak vs Quercus ellipsoidalis

northern pin oak and Quercus ellipsoidalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
northern pin oak	Yes	No	No	No
Quercus ellipsoidalis	Yes	No	No	No

As nouns, northern pin oak and Quercus ellipsoidalis are synonyms defined as:

northern pin oak and Quercus ellipsoidalis: small to medium deciduous oak of east central North America; leaves have sharply pointed lobes

Other synonyms of northern pin oak include jack oak.

northern pin oak (noun)	Quercus ellipsoidalis (noun)
small to medium deciduous oak of east central North America; leaves have sharply pointed lobes	small to medium deciduous oak of east central North America; leaves have sharply pointed lobes