Comparative Anatomy of Leaf Development in Polygonatum cyrtonema and P.anhuiense Effects of Slope on Population Growth and Biomass Allocation of Polygonatum cyrtonema in Phyllostachys edulis Forest Advances in studies on chemical constituents of three medicinal plants from Polygonatum Mill. and their pharmacological activities The impact of understory vegetation structure on growth of Polygonatum cyrtonema in extensively managed Phyllostachys edulis plantation Effect of Light Intensity on Growth, Photosynthetic and Fluorescence Characteristics of Polygonatum cyrtonema Hua Leaf comparative anatomy of Polygonatum cyrtonema from five populations Leaf Epidermis Development of Polygonatum cyrtonema Effect of plant growth regulators on several characteristics during in vitro bud regeneration of Polygonatum cyrtonema