How thorny is Ballerina. I have a plant here that I am trying to ID and, because it is young and been in the ground only 1 year, I can't decide whether it's Ballerina or a deep pink and white centered version of multiflora. Mine is thornless and cutting grown. It's not throwing lots of suckers (yet) and has fringed stipules. I'm keen to try and ID it though as I would like to use it to breed from.