| Name | Piper wilhelmense Chew ex P. Royen |
| Authorship | Chew ex P. Royen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Piper Linnaeus |
| Citation | 1982 Alpine Fl. New Guinea 3: 1282 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Piper wilhelmense Chew ex P. Royen |
| Identification made in | [no date] (10) |