Java pepper vs Piper cubeba

Java pepper and Piper cubeba both are nouns.

Word	Noun	Adjective	Verb	Adverb
Java pepper	Yes	No	No	No
Piper cubeba	Yes	No	No	No

As nouns, Java pepper and Piper cubeba are synonyms defined as:

Java pepper and Piper cubeba: tropical southeast Asian shrubby vine bearing spicy berrylike fruits

Other synonyms of Java pepper include cubeb, cubeb vine.

Java pepper (noun)	Piper cubeba (noun)
tropical southeast Asian shrubby vine bearing spicy berrylike fruits	tropical southeast Asian shrubby vine bearing spicy berrylike fruits