| Name | Nitrophila occidentalis S. Watson |
| Authorship | S. Watson |
| Rank | Species |
| Placed in | Nitrophila |
| Citation | 1871 Botany [Fortieth Parallel] 297 |
| Holdings | 33 Specimens held in the Harvard University Herbaria identified as Nitrophila occidentalis S. Watson |
| Identification made in | [no date] (33) |