| Name | Piper rotundistipulum Trelease & Yuncker |
| Authorship | Trelease & Yuncker |
| Rank | Species |
| Placed in | Piper Linnaeus |
| Citation | 1950 Piperac. N. South Amer. 1: 408, f. 370 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Piper rotundistipulum Trelease & Yuncker |
| Identification made in | [no date] (3) |