soapberry

Any of various chiefly tropical trees of the genus Sapindus, having pulpy saponin-containing fruit that lathers like soap.

The fruit of any of these trees.

A buffaloberry.

The fruit of one of several species of Sapindus; also, any of the trees producing it, and, by extension, any member of the genus.

Any woody plant of the genus Sapindus, which is eponymous of the Sapindaceae family

The fruit of such a plant, especially of the tree Sapindus saponaria.

a tree of the genus Sapindus whose fruit is rich in saponin