jaboncillo vs soapberry tree

jaboncillo and soapberry tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
jaboncillo	Yes	No	No	No
soapberry tree	Yes	No	No	No

As nouns, soapberry tree is a hypernym of jaboncillo; that is, soapberry tree is a word with a broader meaning than jaboncillo:

jaboncillo: evergreen of tropical America having pulpy fruit containing saponin which was used as soap by Native Americans
soapberry tree: a tree of the genus Sapindus whose fruit is rich in saponin

Other hypernyms of jaboncillo include soapberry.

jaboncillo (noun)	soapberry tree (noun)
evergreen of tropical America having pulpy fruit containing saponin which was used as soap by Native Americans	a tree of the genus Sapindus whose fruit is rich in saponin