Clausena wallichii is a small tree, leaves with the rachis narrowly winged; leaflets rhomboid-lanceolate, or oblong, acuminate, glabrous, margins crenulate. Inflorescences paniculate, many-flowered, branches close together, flowers few. Calyx 5-merous, lobes ovate. Petals 5, margins slightly imbricate in the bud, thin. Stamens 10, free, filaments thickened at the middle, at first slightly arched below.
at first slightly arched below.