| Name | Dyckia duckei L. B. Smith |
| Authorship | L. B. Smith |
| Rank | Species |
| Placed in | Dyckia Schultes & Schultes f. |
| Citation | 1958 Bol. Mus. Paraense Emilio Goeldi 1: 3 f. k–o. |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Dyckia duckei L. B. Smith |
| Identification made in | 1987 (2) |