| Name | Piper callosum Ruiz & Pavon |
| Authorship | Ruiz & Pavon |
| Rank | Species |
| Placed in | Piper Linnaeus |
| Citation | 1798 Fl. Peruv. [Ruiz & Pavon] 1: 34, pl. 53 |
| Holdings | 23 Specimens held in the Harvard University Herbaria identified as Piper callosum Ruiz & Pavon |
| Identification made in | [no date] (23) |
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