Humid heather-gorse areas are dominated by cross-leaved heath (Erica tetralix) and dwarf gorse (Ulex minor), with or without associated heather (E. ciliaris), being also frequent the common heather (Calluna vulgaris) and species of the genus Genista (habitat 4020). This habitat is important in controlling the balance of the water cycle, being also a refuge for biodiversity (rare vascular plants as Gentiana pneumonanthe and rare lepidopterous, such as the Maculinea alcon). Also to be seen are insectivore plant species, such as the common sundew (Drosera rotundifolia) and the pale butterwort (Pinguicula lusitanica). Amongst fauna one can see several bird species and amphibia, such as the Iberian newt (Triturus boscai), the marbled newt (Triturus marmoratus), the Iberian frog (Rana iberica) and the European tree frog (Hyla arborea).
Turfaceous heather areas (habitat 4010) are constituted mainly by cross-leaved heath (Erica tetralix) and common heather, but are different from humid heather areas, as they do not have dwarf gorse (Ulex minor) or heather (E. ciliaris), but have abundant moss instead, of the genus Sphagnum. This habitat is a higher evolutionary stage of the peat moss areas found in the mountains of Northern Portugal.
In the meadow one can see, again, the domain of herbaceous vegetation, mostly of grasses or shrubs, that provide pasture for the cattle (bovine, equine and ruminants). Abandonment of pasture may lead to the replacement of this natural or semi-natural meadow by dry scrub.