The green areas of the Historic Center of Cusco, present a high diversity of flora species. Due to the aforementioned, the objective of the study is to determine the composition of the arboreal and shrub flora in five green areas of the Historic Center. To this end, the evaluation was carried out in five places, Plazoleta de Santa Ana, Plaza San Francisco, Plaza Regocijo, Plaza de Armas, and Parque de la Madre, through direct observation, determination of the species through the help of flora guides, and the experience of the authors. A total of 170 individuals were recorded, belonging to 49 species of which 26 are trees and 23 shrubs. As for the place where there was more diversity, the Plaza San Francisco presented 42 species and 95 individuals. Regarding the trees, 88 individuals were registered, representing 51.76% of the total registered. There are 82 shrub species registered, representing 48.24%. Regarding the origin of the species, 37 are native, which represents 75.51%, and the introduced ones are 12 represents 24.49%, this difference is notorious because due to the climatic conditions of Cusco, the growth of arboreal and shrub species introduced in little successful . This work is the first to be done comparing various green areas. Likewise, the use of native tree and shrub species is more prevalent as ornamental plants.