Land of Turkey is divided into three distinctive floristic regions (namely Euro – Siberian, Mediterranean and Irano- Turanian) due to the differences in its topographic structure and climatic features. Therefore, diversity of grassy and woody plant species is higher in the country than that of the countries in its surrounding and Europe. Even though biodiversity of Turkey has been determined in an overall sense, the number and the quality of studies carried out with this aim should be increased. It is of vitally importance to determine existent plant species and take the endangered species under conservation. As the consequence of the present study, it was found that twenty two grassy and fifteen woody plant species in Sarıkamıs with functional and aesthetic characteristics could be used in landscape architecture planning. An additional finding was that Cephaloria sparsipilosa Matthews, Verbascum oreophylum C Koch, Alchemilla sintenisii Rothm, Papaver fugax Poiret were among endemic species while Trifolium trichocephalum Panc. was among rare species. It was also focused in the study that determination and use of native species not requiring extra maintenance needs should be considered in landscape works since the study area has harsh and extreme climatic features.