#Mallotusrepandus

For generations, the vine known across Thailand as โคคลาน or “Koh Khlan” has been a wellspring of traditional healing. Behind this name are other local monikers—มะกายเครือ, มะปอบเครือ, กระเปี้ยะ, โพคาน, แนวน้ำ, เยี่ยวแมว, เยี่ยวแมวเถา—reflecting its widespread recognition in rural and forested communities from the northern hills to the heart of Isan. Scientifically catalogued as Mallotus repandus (Willd.) Müll. Arg., this robust member of the Euphorbiaceae family is best known in Thai traditional medicine for alleviating muscle, bone, and joint pains, often earning its place in time-honoured herbal mixtures for ailments that sap vitality and disrupt daily life.

Koh Khlan, known across Thailand by several local names such as makay kreua and yeo maeo, has long been a source of traditional healing. In rural communities from the northern hills to Isan, families rely on its bark, leaves, and stems to ease muscle, bone, and joint pains. Scientifically, the plant is Mallotus repandus, a member of the Euphorbiaceae family, widely used in Thai herbal blends that aim to restore vitality in daily life.

Deep within the forests, along waterways, and atop rural fences across Thailand, a twisting green vine known as โคคลาน (kok lan), or Mallotus repandus, quietly weaves itself into the cultural and medical heritage of the nation. Revered by traditional healers and often passed down in recipes from older generations, this little-known botanical—alternately called มะกายเครือ, มะปอบเครือ, กระเปี้ยะ, among numerous other names—occupies a unique intersection of folk wisdom and contemporary science. Once sought to quiet burning aches, sooth itching skin, and fortify the liver, Mallotus repandus now finds itself the focus of global biomedical inquiry, testing the boundaries between enduring Thai tradition and modern clinical scrutiny.

In Thai villages by forest streams, a resilient vine known as kok lan (Mallotus repandus) sits at the heart of local healing traditions. Various regional names—makay krew, makay krew, and kobieya—reflect its wide cultural footprint. Traditionally used for muscle and joint pain, skin irritations, and liver support, kok lan is now the subject of scientific inquiry exploring its therapeutic potential.

Mallotus repandus is a climbing plant in the Euphorbiaceae family. It has a broad native range from the Indian subcontinent through Southeast Asia to New Guinea and northern Australia. In Thailand, communities use its heartwood, leaves, or whole vine in topical applications, infusions, and multi-herb recipes. Northeastern villagers, including those in Kut Chum District, historically valued kok lan as an antibiotic and as a remedy for bone pain. Other communities linked it to venom neutralization and fever recovery, illustrating a healing philosophy that emphasizes balance between body and environment.