| Name | Piper umbriense var. caudatum Trelease & Yuncker |
| Authorship | Trelease & Yuncker |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Piper umbriense Trelease |
| GUID | urn:lsid:ipni.org:names:199481-2 |
| Citation | 1950 Piperac. N. South Amer. 1: 261, fig. 223 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Piper umbriense var. caudatum Trelease & Yuncker |
| Identification made in | [no date] (2) |