An Asiatic tree (Melia azedarach), common in the southern United States, commonly called bead tree, chinaberry, etc.
The bark of the roots of the azedarach, used as a cathartic and emetic
Any of several flowering plants, of the genus Syringa, such as the lilacs.
Hence any of several flowering plants of the genus Philadelphus, such as now in the Western United States Philadelphus lewisii.