Botanical Overview
Streblus asper is a flowering plant in the Moraceae family. Traditional medicine systems have documented several valuable applications for this species, supported by its observed therapeutic effects. The fig family (Moraceae) includes trees, shrubs, and climbers with milky sap and alternate leaves. The flowers are small and clustered inside a fleshy receptacle (the fig). Many species produce latex containing proteolytic enzymes and have traditional uses for skin conditions and parasitic infections.
General Description
This tree is sometimes referred to by the common names Siamese rough bush, khoi, serut, and toothbrush tree. It is a medium-sized tree native to dry regions in the Andaman Islands, Assam, Bangladesh, Cambodia, South-Central and Southeast China, East and West Himalaya, Hainan, India, Indonesia, Java, Laos, the Lesser Sunda Islands, Malaysia, Myanmar, Nepal, the Nicobar Islands, Pakistan, the Philippines, Sri Lanka, Sumatra, Thailand, and Vietnam. In the Philippines, it is commonly known as “bogta-e”,“bogtalay”, and “Kalyos”. In Cambodia, it is known as Snay. Several rural communes in Cambodia were named after the tree such as Snay Pol village (Poisonous Snay) of Prey Veng and Krang Snay (Hill of Snay) of Kampot Province. In Malaysia, it is known as “kesinai”.
Family Context
The Moraceae family is widely distributed. Notable medicinal members include:
- Sang-Pai-Pi — 77 documented uses
- Fig — 30 documented uses
- Paper Mulberry — 22 documented uses
- Jackfruit — 15 documented uses
Traditional Uses
Streblus asper has been traditionally used for digestive health, skin and wound care, and urinary tract health, among other applications.
Digestive health.
- Diarrhea
- Dysentery
- Ache(Stomach)
For digestive complaints, the herb is typically prepared as a tea or decoction taken before meals. The bitter compounds stimulate digestive secretions and improve nutrient absorption. Some traditions use the powdered root or leaves in small doses as a stomachic tonic.
Skin and wound care.
- Boil
- Wound
For skin conditions, the fresh or dried plant is applied topically as a poultice, wash, or compress. A strong decoction can be used to clean wounds and sores. The antimicrobial properties help prevent infection while promoting tissue repair.
Urinary tract health.
- Gravel
Urinary tract applications typically involve drinking the herb as a mild tea, which increases urine production and helps flush the urinary system. It may be combined with other demulcent herbs to soothe irritated tissues.
Active Compounds
Phytochemical research has identified 1 compound in this species: betulin.