<unk>  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 Berry (botany)|berries of these plants contain a natural, low-sudsing detergent called saponin.
Canada buffaloberry (Shepherdia canadensis) is also known as<unk> " and is native to North America.  This shrub bears bitter yet edible red berries.
Soapberry
Velvet grass
Milk
Dried fruit
Betel nut
Canary grass
Kidney bean
Oily fish