Syringa × persica, a shrub in the olive family (Oleaceae)
Melia azedarach, a tree in the mahogany family (Meliaceae)
The bark of the roots of the azedarach, used as a cathartic and emetic
An Asiatic tree (Melia azedarach), common in the southern United States, commonly called bead tree, chinaberry, etc.