guava vs Psidium littorale

guava and Psidium littorale both are nouns.

Word	Noun	Adjective	Verb	Adverb
guava	Yes	No	No	No
Psidium littorale	Yes	No	No	No

As nouns, guava and Psidium littorale are synonyms defined as:

guava and Psidium littorale: small tropical shrubby tree bearing small yellowish fruit

Other synonyms of guava include strawberry guava, yellow cattley guava.

guava (noun)	Psidium littorale (noun)
tropical fruit having yellow skin and pink pulp; eaten fresh or used for e.g. jellies	small tropical shrubby tree bearing small yellowish fruit
small tropical American shrubby tree; widely cultivated in warm regions for its sweet globular yellow fruit
small tropical shrubby tree bearing small yellowish fruit