rubber tree vs Hevea

rubber tree and Hevea both are nouns.

Word	Noun	Adjective	Verb	Adverb
rubber tree	Yes	No	No	No
Hevea	Yes	No	No	No

As nouns, rubber tree and Hevea are synonyms defined as:

rubber tree and Hevea: small genus of South American trees yielding latex

Other synonyms of rubber tree include genus Hevea.

rubber tree (noun)	Hevea (noun)
small genus of South American trees yielding latex	small genus of South American trees yielding latex