The names are a trick when I'm selling them and there's only so many words that will print on a label. I had to decide between labeling the rollers as Sempervivum or Jovibarba. I'm moving to Semp. as it's easier to have them all in one group. I like the looks of your pressiana Kate. I have one labeled pressiana Belair Tatra. I doesn't look similar to yours though.