⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-2489181, and has not been changed.
This name is a synonym of Sempervivum arachnoideum subsp. tomentosum .
The record derives from WCSP (in review) which reports it as a synonym with original publication details: Syn. Deut. Schweiz. Fl. ed. 3: 944 1892.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:276505-1
.