| Name | Dyckia ragonesei A. Castellanos |
| Authorship | A. Castellanos |
| Rank | Species |
| Placed in | Dyckia Schultes & Schultes f. |
| Citation | 1944 Lilloa 10: 454, f. 2. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Dyckia ragonesei A. Castellanos |
| Identification made in | [no date] (1) |