| Name | Cladonia arbuscula subsp. squarrosa (Wallroth) Ruoss |
| Authorship | (Wallroth) Ruoss |
| Rank | Subspecies |
| Placed in | Cladonia arbuscula (Wallroth) Flotow |
| GUID | urn:lsid:indexfungorum.org:names:132624 |
| Citation | 1987 Bot. Helvet. 97(2): 260 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Cladonia arbuscula subsp. squarrosa (Wallroth) Ruoss |
| Identification made in | [no date] (6) |