| Name | Piper diffusum Vahl |
| Authorship | Vahl |
| Rank | Species |
| Placed in | Piper Linnaeus |
| Citation | 1804 Enum. Pl. [Vahl] 1: 333 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Piper diffusum Vahl |
| Identification made in | [no date] (1) |
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