THE MORPHOLOGICAL, ANATOMICAL CHARACTERISTICS AND MICROSCOPIC EXAMINATION OF MEDICINAL POWDERS OF POLYGALA TENUIFOLIA WILLD.

Abstract

Polygala is the most representative genus of the Polygalaceae family. The Polygala tenuifolia species is one of eight species in the genus whose chemical composition and active ingredients have been studied for use in traditional medicine. The roots of Polygala tenuifolia have the ability to fight nerve death, inflammation and cognitive decline in Alzheimer's disease. Within the scope of this article, the research team described the morphological characteristics, microanatomy, and powder examination of Polygala tenuifolia species collected in Thanh Hoa province. Polygala tenuifolia is herbaceous, round, about 20-30 cm tall, with short hairs on the stem surface. Single leaves grow alternately and spirally; Flowers are clustered, in bunches, growing at the ends of branches; Sepal 5, corolla 3, stamen 8, fruit heart-shaped, each fruit bears 2 ovoid seeds, dark brown in color. Root microanatomy has a circular cross-section, composed from outside to inside of layers of cork, thick tissue, soft tissue, secondary phloem, secondary xylem vessels and wood fibers. The root powder is light brown and fragrant. The morphological and anatomical characteristics of Polygala tenuifolia help to identify the species accurately.