citron tree vs Citrus medica

citron tree and Citrus medica both are nouns.

Word	Noun	Adjective	Verb	Adverb
citron tree	Yes	No	No	No
Citrus medica	Yes	No	No	No

As nouns, citron tree and Citrus medica are synonyms defined as:

citron tree and Citrus medica: thorny evergreen small tree or shrub of India widely cultivated for its large lemonlike fruits that have thick warty rind

Other synonyms of citron tree include citron.

citron tree (noun)	Citrus medica (noun)
thorny evergreen small tree or shrub of India widely cultivated for its large lemonlike fruits that have thick warty rind	thorny evergreen small tree or shrub of India widely cultivated for its large lemonlike fruits that have thick warty rind