| 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) |
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