If you call Arrowhead Alpine Nursery and speak with Bob the owner he will tell you the exact differences.He is available in the evening as days he is busy running his nursery,a wonderful knowledgable person.I bought several vines from him this year.He has no time for email ,his phone is 517-223-3581

I'm no expert, but I live in Southern California, and those vines crave heat and sunshine. They will NOT bloom well in the shade. They also have killer thorns (like 1" long), and they need pruning often. There are the climbers, and the bush type.

I have about 8 of them in my yard, and I've always had them in the past in other yards. They are gorgeous! Beautiful color! But they are aggressive, and the thorns make it hard to prune them.

I think you should call that number gamekeeper provided. I just walked out and checked, and the bush type have no thorns, at least the species I have in my yard.

I know this is zero help, but it's the best I can do.