A few more steps today to fix my beady lens on these yellow flowers. I was going to say that yet again I don't know what they are but then I googled "yellow papery petals" and I reckon this is a rock rose. And in fact looking at other images of rock roses, I think I've stumbled upon and photographed them quite often. The shrubs themselves seem to make hardy, dark and dense hedges and then suddenly a delicate crepey tissue paper flower emerges as if from nowhere. I'm rather partial to the pink ones too! The family name of these blossoming shrubs is Cistaceae.