Clausena lansium is native to Southern China, Fujian, South East Yunnan and North or Central Vietnam.
The fruit was, introduced to Southeast Asia in Cambodia, Laos, Indonesia, Philippines, Malaysia.
It possesses various antioxidants, minerals and vitamins, anti-inflammatory, anthelmintic and anticancer properties.
Some health benefits are Reduce hypertension, treats cataracts, Balance cholesterol level, treat diabetes; Vitamin B2 has a vital role in the formation of energy as it assists in the metabolism of carbohydrates, fats and proteins in the body.
There are various traditional use for Wampee and countries such as China and Malaysia, where the leaves are used to treat asthma, coughs, dermatological diseases and hepatitis.
Dried unripe fruits and sliced roots are, used as an aid for bronchitis.
Ripen fruits possess stomachic and cooling effects.
The leaves, seeds and fruits are used to treat gastrointestinal ailments such as ulcers and chronic inflammation.
In Taiwan, the roots are used to cure malaria and bronchitis.
The leaves are used in Vietnam to cure dandruff and protect hair colour.
In the Philippines, the fruit is, used for indigestion, stomach upsets, coughs, colds, influenza and abdominal colic pains.
The seed extracts possess antifungal and human immunodeficiency virus reverse transcriptase inhibitory properties.
About 15-30 grams of dried leaves should be, used in broth for the treatment of cold, influenza and malaria.