International Journal of Botany Studies

Authors
Noura D Aldawsari, Mona S Alwahibi, Mohammed A Alshaikh

Abstract
Majameà Al-Hadb Reserve is a natural reserve in the Kingdom of Saudi Arabia under the supervision of the National Center for the Development of Wildlife. It is an area fed by many valleys and home to many perennial and annual plant communities. This study presents the determination of the fluorescent composition of plants and the knowledge of their areas of existence, their quantity, their life forms, and their geographical distribution in three of the most important valleys within the reserve. 27 different sites were selected within the reserve. Each site had an area of 50m2. The plant species present there were recorded, and their floristic category and global geographical distribution were determined. The total number of plant species reached 57 species, belonging to 45 genera and 23 families. The most abundant family was Fabaceae, followed by Zygophyllaceae, poeaece, as for the species represented by one species, it reached 12 families. Annual and perennial herbs were prevailing. In addition that the monoregional regions are the most highly representative, with a percentage of 49.12% and the Sudanese desert region was the highest among the monoregions of geographical distribution. Majameà Al-Hadb Reserve can be considered a reservoir of local seed species, as no invasive species were recorded, and this makes us call for attention to the management of the reserve and the prevention of overgrazing during the flowering days of the plants.