| Name | Piper dilatatifolium Trelease & Yuncker |
| Authorship | Trelease & Yuncker |
| Rank | Species |
| Placed in | Piper Linnaeus |
| Citation | 1950 Piperac. N. South Amer. 1: 267–268, f. 232 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Piper dilatatifolium Trelease & Yuncker |
| Identification made in | [no date] (2) |