Macaranga tanarius distribution has been identified in a study conducted by almost all states in Peninsular Malaysia. Assessment on the distribution of M. tanarius was based on the records available and type specimens housed in three different herbarium namely the Kepong Herbarium (KEP) in Forest Research Institute Malaysia, the herbarium in the Faculty of Forestry in Universiti Putra Malaysia and the Herbarium Universiti Kebangsaan Malaysia. While field surveys were carried out from July 2012 until October 2013. There are 128 specimens were assessed from the three herbaria which made in the year of 1925 to 2005. Field surveys showed that M. tanarius can be found from the state of Perlis in the north, to the state of Johor in the south. From the observation, M. tanarius is a commonly found species along the highways and the road sides, whether as single individuals or as mono-stands. It can be seen growing together with other pioneer species of shrubs or trees. The study also shows the growing pioneer species in disturbed habitats and the creation of new space to meet before the displacement process other quality species grows in the forest opening. This study is first surveys involving M.tanarius species including the entire state in peninsular Malaysia. It is intended for the collection and distribution -related service information management for the study of phenology of collecting seeds to be planting material.