This plant (presumably ornamental) is dispersed by songbirds when they make their nests in urban areas in southern Spain. It is interesting to identify it as there are few documented cases of this kind of dispersal.
Definetely Sedum. If you encounter problems in identifying this species, I advise you to contact Dr. Johannes Klein at Johannes Gutenberg-University in Mainz, Germany. He has been working on phylogenetics and species circumscription of Crassulaceae and especially of Sedum, so he will be able to help you to identify this species.
I am trying to identity of the species it's goes to key......Genus : Sedum .......closely Species mucizonia......Family: Crassulaceae. Plz check Local Floras.....