Sapindus saponaria vs soapberry

Sapindus saponaria and soapberry both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sapindus saponaria	Yes	No	No	No
soapberry	Yes	No	No	No

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

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

Other hypernyms of Sapindus saponaria include soapberry tree.

Sapindus saponaria (noun)	soapberry (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