The wetland forest is found especially in the north-eastern area of the Reserve, beneath the monastery and at the end of the Central Route near the nursery. There are no extensive forests in the Reserve, but rather small residual portions near the water or in perimeter areas. The forested areas of the Reserve consist of species such as black alder (Alnus glutinosa) (clickable), white willow (Salix alba), black poplar (Populus nigra), and some large plane trees (Platanus hispanica) planted in the past. Their survival is tied to the presence of water, and the species are able to live with their roots partially submerged. If the soil is dry for too long, they are invaded by brambles (Rubus sp.) and then by plants typical of dry soil.

The undergrowth instead consists of shrubs such as common dogwood (Cornus sanguinea), alder buckthorn (Frangula alnus), the exotic false indigo (Amorpha fruticosa), and the invasive wild blackberry (Rubus ulmifolius).

Grasses found in the Reserve include the lesser pond sedge (Carex acutiformis) and marsh fern (Thelypteris palustris). There are also large isolated trees or trees in rows that host various bird species. Looking northwards from the Central Route, a colony of herons and cormorants can be seen, while the black kite (Milvus migrans) nests in other more hidden areas.