Our work is closed to the framework of the good management for the Afenourir’s lake (Morocco), and its biodiversity, for its restoration and maintenance of all kinds of anthropic activities (overgrazing, pumping, etc.). It consists of the analysis and identification of the floristic biodiversity of lake during the period April-June 2015 in order to study its quality. Indeed, floristic species play a major role in the production and protection of soils against erosion, as well as maintaining substrate and the balance of the aquatic ecosystem, and can also be bioindicators of pollution. The flora of this wetland shows a lower floristic richness in terms of aquatic flora, which represents only 5 species including Ranunculus aquatilis, Zannichellia palustris, Myriophyllum Spicatum, Chara Globularis, Eleocharis uniglumis and Scirpus Lacustris; On the other hand terrestrial flora shows a diversity of species such as Cedrus atlantica, Quercus rotundifolia, Crataegus laciniata Ucr, Eryngium Bourgatii, Thymelaea virgata, Euphorbia nicaensis, Anacyclus pyrethrum L, Plantago coronopus L, Ilex aquifolium and Acer monspessulanum L.
