| Name | Opuntia keyensis Britton ex Small |
| Authorship | Britton ex Small |
| Rank | Species |
| Placed in | Opuntia |
| Citation | 1919 J. New York Bot. Gard. 20(230): 31–32, pl. 225 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Opuntia keyensis Britton ex Small |
| Identification made in | [no date] (2) |