| Name | Dyckia horridula Mez |
| Authorship | Mez |
| Rank | Species |
| Placed in | Dyckia Schultes & Schultes f. |
| Citation | 1901 Bot. Jahrb. Syst. 30(Beibl. 67): 5. |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Dyckia horridula Mez |
| Identification made in | [no date] (2), 1986 (1) |