oval kumquat vs nagami kumquat

oval kumquat and nagami kumquat both are nouns.

Word	Noun	Adjective	Verb	Adverb
oval kumquat	Yes	No	No	No
nagami kumquat	Yes	No	No	No

As nouns, oval kumquat and nagami kumquat are synonyms defined as:

Other synonyms of oval kumquat include Fortunella margarita, nagami.

oval kumquat (noun)	nagami kumquat (noun)
shrub bearing oval-fruited kumquats	shrub bearing oval-fruited kumquats