| Name | Datura inoxia subsp. quinquecuspidata (Torrey) A. S. Barclay |
| Authorship | (Torrey) A. S. Barclay |
| Rank | Subspecies |
| Placed in | Datura inoxia Miller |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Datura inoxia subsp. quinquecuspidata (Torrey) A. S. Barclay |
| Identification made in | 1959 (1) |