A Preliminary Study on Phytochemical Screening of Boerhaavia Diffusa, Euphorbia Hirta and Amaranthus Polygonoides Journal title: International Journal of Trend in Scientific Research and Development Authors: R. Ezhilarasi | Dr. B. Senthilkumar | Dr. K. Devi Subject(s): Biological Sciences, Computer and Information Science, Engineering, Mathematics, Agricultural Engineering, Management, Engineering, Multidisciplinary