| Name | Opuntia echios J. T. Howell |
| Authorship | J. T. Howell |
| Rank | Species |
| Placed in | Opuntia |
| Citation | 1933 Proc. Calif. Acad. Sci. 4, 21: 49 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Opuntia echios J. T. Howell |
| Identification made in | [no date] (4) |