Anthyllis cytisoides No English name
Growing out of a hillside by the access road, clumps of this plant were each about 1 m tall and waving in the wind. Together with the various Cistus sp flowers they provided a delightful backdrop to the famous view of El Camino del Rey a path, now in disrepair, built for King Alfonso XIII of Spain for the 1921 opening of the El Chorro dam.
The flowers themselves do look a bit like the pea flowers of Anthyllis (vulneraria) in the UK with many hairs around the inflorescence.