| Name | Thelocactus rinconensis (Poselger) Britton & Rose |
| Authorship | (Poselger) Britton & Rose |
| Rank | Species |
| Placed in | Thelocactus |
| Citation | 1923. (9 Oct 1923) Cactaceae (Britton & Rose) 4: 7, f. 4 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Thelocactus rinconensis (Poselger) Britton & Rose |
| Identification made in | [no date] (1) |