Macaranga triloba (Thuns).Mull.Arg

Mahang damar (Macaranga triloba) is a tree up to 35 meters tall from the Euphorbiaceae family spread from Kalimantan to Myanmar and the Philippines. The Talang Mamak people in Jambi traditionally use this plant to treat diarrhea and canker sores, while its young leaves are eaten and its root produces a yellow dye. Research shows mahang damar has potential as a cancer-preventive material.

Mahang damar is classified as a pioneer plant that makes up secondary forests, found from lowlands up to an elevation of about 1,400 m asl. Mahang damar grows in various habitat conditions, including dry dipterocarp forests, swamp forest edges, and it is also one of the few mahang species able to live in forests that experience periodic dry seasons.

• Roots a strong taproot.
• Stem branch-free portion can reach 25 m, round, smooth, somewhat grayish-green, sometimes with small buttress roots. The outer bark is somewhat thick, thinly fleshy and yellowish-white, and somewhat sticky.
• Leaves arranged singly, three-lobed, limp, upper and lower leaf surfaces green, but the underside is rougher and slightly hairy.
• Flowers male and female separate, the male relatively smaller than the female flower. Small yellow flowers, arranged in panicles.
• Fruit a box divided into three chambers, small and hard.

Cultivation of mahang damar is usually done by propagating from seeds; other methods have never been used.

Compounds in the leaves: 4,5-dihydro-5'α-hydroxy-4'α-methoxy-6a,12a-dehydro-α-toxicarol, clovan-2β,9α-diol, ferulic acid; 3,7,3',4'-tetramethylquercetin, 3,7,3'-trimethylquercetin, 3,7-dimethylquercetin, abscisic acid, 1β,6α-dihydroxy-4(15)-eudesmene, 3β-hydroxy-24-ethylcholest-5-en-7-one, loliolide, scopoletin, taraxerol, 3-epi-taraxerol. Compounds in flowering blooms: malaysianone A, 6-prenyl-3'-methoxyeriodictyol, nymphaeol B, nymphaeol C, 6-farnesyl-3',4',5,7-tetrahydroxyflavanone, 5,7-dihydroxycoumarin, scopoletin.

Treats stomach ache and diarrhea, wounds, canker sores, and has potential as an anticancer agent.

• Take fresh mahang damar leaves and wash until clean.
• Dry the leaves under direct sunlight or using an oven.
• Once the leaves are completely dry, blend finely and sieve to obtain a powder.
• Store in a well-closed container protected from light to maintain the quality of the preparation.

Nancakng, Lekeran, Menuang poti, Menuang pute, Lekeran serau, Daun sedaman, Purang, Pedek, Purang, Binasing, Don binasing (Kalimantan), Sape (Minangkabau), Mara, Mara beureum, Mara bodas, Mara leutik (Sunda) Tutup ancur, Tutup ijo, Tutup sruwa (Java).