What is "sapindus saponaria"

Soapberry tree \Soap"ber`ry tree`\ (Bot.) Any tree of the genus Sapindus, esp. Sapindus saponaria, the fleshy part of whose fruit is used instead of soap in washing linen; -- also called soap tree.

Sapindus saponaria is a small to medium-sized deciduous tree native to the Americas. Common names include wingleaf soapberry, western soapberry, jaboncillo, sulluku and mānele ( Hawaiian). Its genus name, "Sapindus", comes from the Latin, meaning Indian soap, and its specific epithet means "soapy."