An inventory of the flora in the marshes of the Macta is supported by this proposal. It comes to producing qualitative and quantitative data that will assess the current situation of the vegetation cover and their degrees of threat. This inventory will allow making a map of species and habitats, highlighting the areas with species of heritage and vulnerable areas This step will allow to identify threats on species and habitats. The data will be considered by project partners when preparing the action plan for Macta marches. Result will be valued by a guide gathering medicinal and aromatic plant to help in communicating resources around this key biodiversity areas.