cubeb vs Piper cubeba

cubeb and Piper cubeba both are nouns.

Word	Noun	Adjective	Verb	Adverb
cubeb	Yes	No	No	No
Piper cubeba	Yes	No	No	No

As nouns, cubeb and Piper cubeba are synonyms defined as:

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

Other synonyms of cubeb include cubeb vine, Java pepper.

cubeb (noun)	Piper cubeba (noun)
a cigarette containing cubeb	tropical southeast Asian shrubby vine bearing spicy berrylike fruits
tropical southeast Asian shrubby vine bearing spicy berrylike fruits
spicy fruit of the cubeb vine; when dried and crushed is used medicinally or in perfumery and sometimes smoked in cigarettes