| Name | Piper semiimmersum C. de Candolle |
| Authorship | C. de Candolle |
| Rank | Species |
| Placed in | Piper Linnaeus |
| Citation | 1917 Notizbl. Bot. Gart. Berlin-Dahlem 6[7](62): 479–480 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Piper semiimmersum C. de Candolle |
| Identification made in | [no date] (4) |