Lori thanks for your explanation of the "problem";
sempervivum are a very variable species and for example the Sempervivum arachnoideum picked up in "Abruzzi" is different to another one picked up in "Cascade de la Pisse";
sempervivum-collecters really need this seperated entries so they can see where this plant has been picked up; the differences are changeless if you cultivate it at home and take offsets of them;
there are some "older" subspecies and varieties which have been consolidated by the botanists - but they have differences too; so we show the old classification in brackets;
Sempervivum arachnoideum subsp. tomentosum (laggeri) is not the same as Sempervivum arachnoideum subsp. tomentosum (moggridgei) or Sempervivum arachnoideum subsp. tomentosum (webbianum); same species and same subspecies - but different....
sometimes the differences are only little details - but the real "semperholic" knows them and want to differentiate;
Peter
