Abstract

• Polygonum chinense L. is a medicinal plant which was collected from Yangon area (Botanical garden, Yangon University, Kamayut Township and Yankin Township).The plant verification was carried out. The morphological characteristics such as Inverted v shaped deep purple spot present on the surface of the leaf, ochreate stipule, inflorescence of terminal paniculate corymbose cymes, elliptic bract, apetalous flower, eight fertile stamens, tri-fid style, tri-gonous ovary were apparently observed in the species. Microscopic characteristics of the leaves and powdered drug were examined. Microscopic study showed that stomata were anomocytic type which was abundant in lower surface of the leaf, calcium oxalate crystals and tannin occurred here and there in the leaf. Nutritional values of the leaves showed that carbohydrate was the main component followed by vitamin C while fat and vitamin B1, were also found. The leaf parts are used for boiling leaves to eat with Ngapi and put that leaves in fish curry. This plant can be used for the disease of rheumatism. It also be used for future research investigation of a such kind of disease.