| Name | Cephalocereus tweedyanus Britton & Rose | 
| Authorship | Britton & Rose | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Cephalocereus | 
| GUID | urn:lsid:ipni.org:names:129913-1 | 
| Citation | 1920 Cactaceae (Britton & Rose) 2: 54 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cephalocereus tweedyanus Britton & Rose | 
| Identification made in | [no date] (2) | 
