Oh thank you Lynn!
It is one of my very favorites
It had a proper cultivar name when I bought it, but, at the time, I didn't know that it mattered so much--I just knew that it was special and beautiful and cost too much, and the tag was ugly so I threw it away
It is a great semp though--quite big, kind of a chocolate-purple-red in the spring, then goes purple and green and turquoise, then just kind of a muddy green with brownish red until it cools off again; and it does very well in my sunny rock pile and makes many babies.