I thought this was some weird kind of moss on this Dog-rose (Rosa canina), but it turns out to be a gall caused by the Bedeguar Gall Wasp (Diplolepis rosae). The gall (also known as Robin's Pincushion) is the product of a group of larvae, each residing in their own chamber within the gall. Photo taken yesterday near the village of Erbistock, near Wrexham in North Wales. #photography #PhotoMonday #plants #plantgalls #galls #Diplolepis #Erbistock