| Name | Ferocactus viridescens (Torr. & A. Gray) Britton & Rose |
| Authorship | (Torr. & A. Gray) Britton & Rose |
| Rank | Species |
| Placed in | Ferocactus |
| Citation | 1922 Cactaceae (Britton & Rose) 3: 140 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Ferocactus viridescens (Torr. & A. Gray) Britton & Rose |
| Identification made in | [no date] (3) |