| Name | Piper triangulare Chew ex P. Royen |
| Authorship | Chew ex P. Royen |
| Rank | Species |
| Placed in | Piper Linnaeus |
| Citation | 1982 Alpine Fl. New Guinea 3: 1284. |
| Holdings | 22 Specimens held in the Harvard University Herbaria identified as Piper triangulare Chew ex P. Royen |
| Identification made in | [no date] (20), 2008 (2) |
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