I'm a little bit confused....
Red Cobweb isn't a name of a cultivar....it's only a discription of a red cobweb sempervivum;
who might be the breeder and who distribute semps with a name like that?!? but a lot of nurseries distribute No-Name-Semps and write a discription on the label;
so nobody can say if all that "red cobweb" plants are the same......