Desa Petani Kab.Bengkalis, Riau is a developing area, occupied by three major ethnics i.e. of Javanese, Malay and Sakai. The countinous development may reduce the medicinal plant diversity. This study aimed to record and identify the medicinal plants used by Javanese, Malay and Sakai people and to test the phytochemical content of those plants. The study was conducted from July 2013 to February…