These vegetal formations fulfill an important role during the summer because they conserve the humidity, being used by the cattle during the summer.

The mesophilic pastures occupy the lowest areas of the slopes, being developed on old crop fields, today dedicated to the extensive equine and bovine cattle shepherding. They colonize, preferredly, solarium slopes on more or less stony deposits.

The fenced fields (cross-linkings pastures) are around the village centres (Horcajuelo de la Sierra, Prádena del Rincón, Montejo de la Sierra, La Hiruela and Puebla de la Sierra) and in humid stream bed scopes in which meadows with longitudinal form are developed. This formation type is linked to the hay exploitation (Anthoxanthum odoratum) and rye grass (Agrostis castellana) in spaces watered by channels and small streams. They are characterized for being particular properties of small size surrounded by a wooded boundary (pyrenaican oak, ash tree, etc.). A great part of these meadows has been left, being at the present time colonized by the thorny border (Prunus spinosa, Rubus, Rosa…) of brambles, rose shrubs, etc.

The xerophytic pastures are developed on medium and low slopes, with little superficial humidity and, in general, on poor nutrients grounds and with certain erosion by surface run-off.
The psicroxerophytic pastures (Festuca indigesta) are developed over the 2000 m of altitude, on winding summits and with nival cover during the winter months. In Sierra del Rincón, they are located in summits of Cerro Montejo bulk and, locally, in the edges of Sierra de La Puebla. These pastures have traditionally been used by migrating ovine cattle during the summer. At the present time, only a reduced number of bovine and equine cattle individuals use these pastures.

These ecosystems value is important due, mainly, to the relevance of the uses associated to the pastures, in special, the bovine cattle shepherding, and to the environmental value that summit pastures have in the top of the mountain.

Source: National inventory of Habitats (Environment Ministry)