Siam wead (Chromolaena odorata) is used traditionally for treatment lesoin, amenorrhea, antidiabetic and antimicrobial. Based on previous research, there is no reference about the standardization Siam Weed leaves dried powder. This study aims to determine macroscopic and microscopic of siam weed leaves fresh plant obtained from, Surabaya, to determine the spesific and non spesific quality profile of dried powder of siam weed leaves dried powder obtained from different areas (Bogor, Malang and Surabaya). The spesific parameter that used were identity, organoleptic, microscopic, determination of soluble extract, phytochemical screening, determination chromatogram profile using Thin Layer Chromatography, determination spectrum profile using sp...