| Name | Gymnocactus beguinii (F. A. C. Weber ex K. Schumann) Backeberg |
| Authorship | (F. A. C. Weber ex K. Schumann) Backeberg |
| Rank | Species |
| Placed in | Gymnocactus Backeberg |
| Citation | 1951 Cact. Succ. J. (Los Angeles) XXIII 151 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Gymnocactus beguinii (F. A. C. Weber ex K. Schumann) Backeberg |
| Identification made in | 1983 (1) |