Sempervivum

[Lori S.]

I bought this as Sempervivum thompsonianum, but I now doubt that ID.  It doesn't seem to fit this description:
http://stalikez.info/fsm/semp/site/stogo_gb.php?lg=fr&clc=121&zc=Ae1f1aDg1f1f1i1r1zu1g

Any thoughts as to what it might be, assuming it is at all identifiable (given the vast # of cultivars)?  The hairy tufts at the leaf tips are interesting.

Here are the flowers:
http://nargs.org/nargswiki/tiki-browse_image.php?galleryId=20&sort_mode=name_asc&imageId=2150&scalesize=o

Thanks in advance for any thoughts on it.