Clausena lansium
 Clausena lansium also known as a wampee (Clausena wampi) is a species of strongly scented evergreen trees 3–8 m tall in the family Rutaceae native to southeast Asia. The leaves are smooth and dark green in color. The flowers appearing in late March are white with 4-5 petals about 3–4 mm diameter. The fruit is oval about 3 cm long and 2 cm in diameter containing 2 to 5 seeds that occupy ~ 40-50% of the fruit volume. The tree reaches a maximum height of 20 meters.