This is one from the second time I did this cross. First time I used plain old Rosa spinosissima. Second time I thought I'd try for double flowers, so I used 'Double White Scotch'. Didn't get any doubles, but they were a little better colored and more compact. The second image shows the mature bush which is about waist high and very dense. Just as infertile as the first time. I'm assuming they're triploids. They never have set even one single hip. But who knows, maybe the pollen at least might have a little fertility.