Saline marshland forms a boundary between the marine, freshwater and terrestrial environment. During the wet season rainwater mixes with salt water to form brackish water. This environment is home to many specialised flora, which include rushes, reeds and golden samphire. Freshwater is normally found in valleys and watercourses. Valleys are important water catchment areas, but very few watercourses hold water throughout the year.
Valleys support a maquis type of vegetation.
Typical trees include white poplar, willow and grey elm. Typical plants include great reed and Sicilian squill. Rock Pools form in winter on small depressions found on karstland. Water-crowfoot is atypical plant found in rock pools. Such land has been degraded by human activities.