Floristic composition of the gardens with reference to economic value and species status according to iucn.

This work amid to estimate the garden flora's composition and richness, and to determine to what extent they provide habitat for alien species, in addition to focusing on threatened species. For this evaluation, life forms, duration, geographical distribution, medicinal, economic, and environmental uses, and conservation categories are given, using literatures. Field trips during 2018-2019 were conducted to cover seven gardens in the studied area. 57 species were recorded belonging to 51 genera and 20 families, where the richest garden was S7 (29 species). Poaceae and Asteraceae had almost half the number of the recorded species (19 and 9 species respectively), and Euphorbia (four species) was the most represented genus. 43 species were native to Egypt, while 14 species were alien. The life form spectrum showed that the majority of species were therophytes (40 species), moreover, based on the duration and phytogeographical categories, annual species (41) and monoregional species (22 species) and Mediterranean one (34 species) were the most represented species in the study area. Medicinal plants had the most uses, while phytoremediation had the most represented environmental benefits. Furthermore, 22 species were categorized as IUCN threatened species. Our study revealed the unlimited role of the public garden in the Nile region.