| Name | Sempervivum arachnoideum subsp. tomentosum (C. B. Lehm. & Schnittsp.) Schinz & Thellung | 
| Authorship | (C. B. Lehm. & Schnittsp.) Schinz & Thellung | 
| Rank | Subspecies | 
| Placed in | Sempervivum arachnoideum Linnaeus | 
| Citation | 1923 Fl. Schweiz (Schinz) 4: 325 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sempervivum arachnoideum subsp. tomentosum (C. B. Lehm. & Schnittsp.) Schinz & Thellung | 
| Identification made in | [no date] (1) | 
