Soapberry

Soapberry is a common name for several plants and may refer to:

Plants in the genus Sapindus, native to warm temperate to tropical regions in both the Old World and the New World. The berries of these plants contain a natural, low-sudsing detergent called saponin.
Canada Buffaloberry (Shepherdia canadensis) is also known as "soapberry" and is native to North America. This shrub bears bitter yet edible red berries.

See also