THE BIOLOGICAL CHARACTERISTICS AND PHARMACOLOGICAL VALUES OF SPECIES SEVEN LEAVES A FLOWER OF GENUS PARIS

Abstract

Seven leaves a flower plants of genus Paris are found in many high mountainous of countries in the world. In Vietnam, Paris genus found 8 species: P. caobangensis, P. cronquistii, P. delavayi, P. dunniana H., P. fargesii Franch., P. polyphylla Sm., P. xichouensis., và P. polyphylla var. Yunnanensis, P. polyphylla var. chinensis, they are distributed in Lao Cai, Ha Giang, Vinh Phuc, Cao Bang, Phu Tho, Ninh Binh, Thanh Hoa provinces. Seven leaves a flower is a precious medicinal plants, has effects to cure many various diseases, including incurable diseases. Species of Seven leaves a flower in the world and in Vietnam are very diverse in in morphology, leaf number and leaf shape. The regeneration ibility  of the Seven leaves a flower in nature is relatively low for many reasons, such as seed dormancy period long, difficult germination. Reviews the research on biological characteristics and pharmacological values to create database on genetic resources of Seven leaves a flower plants and  to set up research plans, conservation and development of this precious medicinal plant species in Vietnam