any member of the genus Sapindus, of the soapberry family (Sapindaceae), comprising about 12 species of shrubs and trees native to tropical and ... Found on http://www.britannica.com/eb/a-z/s/116
Soapberry (Sapindus saponaria) is a tropical American tree of the natural order Sapindaceae. The soapberry has alternate leaves and small greenish-white flowers. The fruit is fleshy and contains hard, black, round seeds that have been used as beads and buttons. The outer covering of the seeds when soaked in water produce a lather, and have been use... Found on http://www.probertencyclopaedia.com/browse/BSB.HTM