AFLP Analysis of genetic diversity of Leonurus japonicus germplasm resources Aliphatic compounds from Leonurus japonicus Advance in studies on chemical components, pharmacological effect and clinical application of Leonurus japonicus Study on Q-Marker of Leonurus japonicus and Penthorum chinense based on basic conditions of Q-Marker Effects of nitrogen,phosphorus,and potassium on seedling growth and stachydrine and total alkaloid from Leonurus japonicus