Fortunella margarita vs oval kumquat

Fortunella margarita and oval kumquat both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fortunella margarita	Yes	No	No	No
oval kumquat	Yes	No	No	No

As nouns, Fortunella margarita and oval kumquat are synonyms defined as:

Fortunella margarita and oval kumquat: shrub bearing oval-fruited kumquats

Other synonyms of Fortunella margarita include nagami, nagami kumquat.

Fortunella margarita (noun)	oval kumquat (noun)
shrub bearing oval-fruited kumquats	shrub bearing oval-fruited kumquats