| Name | Petrophytum caespitosum (Nuttall) Rydberg | 
| Authorship | (Nuttall) Rydberg | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Petrophytum | 
| Contains | Petrophytum caespitosum subsp. acuminatum (Rydberg) Munz Petrophytum caespitosum var. elatius (S. Watson) Tidestrom | 
| GUID | urn:lsid:ipni.org:names:727301-1 | 
| Holdings | 68 Specimens held in the Harvard University Herbaria identified as Petrophytum caespitosum (Nuttall) Rydberg | 
| Identification made in | [no date] (66), 2009 (2) | 
