The bead tree or azedarac, Melia azedarach, a deciduous tree in the mahogany family Meliaceae, native to India, southern China and Australia, or its fruit.
Actaea rubra, a poisonous herbaceous flowering plant in the family Ranunculaceae, native to North America.
The soapberry (genus Sapindus, especially Sapindus saponaria), native to the Americas.
Azadirachta indica, a large, mostly evergreen tree from India, whose seeds yield the insecticide azadirachtin.