ABSTRACT
Objective:To explore the correlation of the botanical characteristics， biological characteristics， habitat， and medicinal property and efficacy of parasitic Chinese medicines， underpin quality evaluation based on property differentiation， and provide references for the development and utilization of parasitic medicinal plant resources. Method:The origin， property and meridian tropism， parasitic type， and the efficacy of the common of parasitic Chinese medicines were summarized. The frequencies of parasitic Chinese medicines in Qingfei Paidu decoction，<italic> Medicine Food Homology</italic>， <italic>Catalogue of Ancient Classical Formulas （the first batch）</italic>， and the 2020 edition of <italic>Chinese Pharmacopoeia</italic> were statistically analyzed. Excel 2013 and SPSS Statistics 23.0 were employed for statistical research. Result:The ranking results of parasitic Chinese medicines are listed below： root parasitism>stem parasitism>root hemiparasitism>symbiosis=saprophytism according to the parasitic type， plain>warm>cool>cold， no heat involved according to nature， sweet>bitter>pungent>sour=salt， with one sweet-pungent， one sweet-bitter， one sweet-salt， and one bitter-salt Chinese medicine according to flavor， kidney>liver>large intestine>spleen>lung>heart=bladder， no small intestine meridian involved according to meridian tropism. Conclusion:Parasitic Chinese medicines were mostly root-parasitic， plain in nature， sweet in flavor， and entered kidney meridian， with main effects of dispelling wind-dampness， nourishing liver and kidney， clearing heat， and removing toxin. The morphology， habit， and habitat of parasitic Chinese medicine were correlated with the property and efficacy. This study is expected to provide comprehensive references and a theoretical basis for in-depth research， clinical application， and resource development.
ABSTRACT
This paper explored the ecologically suitable areas for growing Scutellaria baicalensis using Geographic Information System for Global Medicinal Plants(GMPGIS), to figure out the resource distribution of S. baicalensis worldwide and provide a scientific basis for its scientific introduction. A total of 349 S. baicalensis sampling sites were selected all over the world for GMPGIS-based analy-sis of the ecologically suitable areas with six ecological factors including annual average temperature, average temperature during the coldest season, average temperature during the warmest season, average annual precipitation, average annual relative humidity, and annual average illumination and soil type as the ecological indexes. The results demonstrated that the ecologically suitable areas for growing S. baicalensis were mostly located in the Northern hemisphere, and the suitable areas in the United States, China, and Russia accounted for 19.25%, 18.66%, and 13.15% of the total area worldwide, respectively. In China, the Inner Mongolia, Heilongjiang province, and Yunnan province occupied the largest proportions of the total area, namely 14.28%, 8.72%, and 6.18%, respectively. As revealed by ecological factors of each sampling site, S. baicalensis was resistant to low temperature but not to high temperature. The adaptive range of average annual precipitation is narrower than that of average annual air humidity. The suitable soils were mainly inceptisol, alfisol, and fluvisol. High temperature and rainy climate or excessively high soil bulk density was not conducive to the growth of S. baicalensis. The adoption of GMPGIS enabled to obtain areas with the greatest ecological similarity for S. baicalensis, which were reliable data supporting the exploration of resource distribution and reasonable introduction of S. baicalensis.