Near the river a large number of tree species coincide. The most common include the alder, the poplar, willows and tamarisks.
Alders and black poplars run all along the riverside areas. Below and closer to the river, often on areas of pebbles, we can find a variety of willows.
The black poplar (Populus nigra), together with other trees of the same genus such as the aspen (Populus tremula), are relatively tall, slender trees, and characteristic elements of the landscape.
Black poplar catkins.
Black poplar fruit.
Leaves of alder (Alnus glutinosa), a tree that comes to form small forests (groves) along river borders.
Alder catkins.
Willows, the rosemary willow, goat willow or common osier and other bushes or trees from the salicaceae family are not only common along river banks, but can also be found in clearings or along the edges of forests.
Purple willow.
Purple willow (Salix purpurea) flowers. The catkins of willow trees usually appear before the leaves start to open.
Goat willow (Salix caprea) flowers.
Rosemary willow (Salix elaeagnos) flowers.
The French tamarix (Tamarix gallica) also known as tamarisk, may colonise riverbank areas where there are saline deposits or gypsum sediments, conditions which are quite common in Gerri de la Sal.