This plant is not Erodium chrysanthum and should be regarded as a hybrid, perhaps somewhere in the E.x lindavicum group.
This plant has come to represent E.chrysanthum in nurseries in Europe and N.America. It is easy to propagate and is long lived, two factors which have no doubt helped it become firmly established in horticulture.
The true plant is smaller growing, can have very silvery leaves and the flowers are like the name suggests, yellow. Also, the true plant does not have coloured anthers and pollen, they are white to a degree. True E. chrysanthum can be found on a handful of mountains in Central Greece and the Peloponnese.
Thank you for your comment. In reality the flowers are more yellow than on this picture and the leaves are very silvery, but you are probably right about the colour of the anthers