This study was conducted in Guassa Community Conservation Area, in North ShewarnZone, Amhara regional state, Ethiopia. The Guassa Community Conservation area isrnvery important for the livelihoods of the local communities and the area is managedrnthrough local participation. The objectives of the study was to determine the rate ofrnLULCC in the study area, to identify the causes of LULCC in the study area, to documentrnthe plant species of GCCA and to identify the species composition differences betweenrnplantation and natural vegetation. The LULCC data was gathered by using threernLANDSAT satellite images starting from period of 1986, 2003 and 2015. All the availablernimages were classified into different land cover types by applying a maximum likelihoodrnalgorithm under supervised classification method and with the support of ArcGIS v.10.1rnsoftware. The vegetation data was collected from 70 sample plots (35 from naturalrnvegetation and 35 from plantation site). Each sample had quadrat size of 10m x 10m forrntrees and shrubs, five quadrats (2m x 2m), one at each corners and one at center forrnherbaceous species was laid out along a transect at an interval of 200 m between eachrnlarge quadrat. The LULC maps of the GCCA for three referenced years and statisticalrnsummaries of the different LULC types were mapped. The study identified a total of 88rnplant species which belongs to 64 genera and 33 plant families. Of the 33 plant families,rnAsteraceae had the highest number of species (31), the second was Poaceae with ninernspecies. The study was concluded by mapping the LULC changes and documenting arntotal of 88 plant species with 18 endemic plants to Ethiopia. Finally, developing goodrnmechanism to remove invasive species (Helichrysum species) and farther study onrnmarket value chain of Festuca species (economically valuable grass) are recommended.rnKeywords: Guassa Conserved Area; Land Use and Land Cover; natural vegetation;rnplantation forest; vegetation composition