| Name | Piper lacunosum var. angustifolium Trelease & Yuncker |
| Authorship | Trelease & Yuncker |
| Rank | Variety |
| Placed in | Piper lacunosum Kunth |
| Citation | 1950 Piperac. N. South Amer. 1: 21 |
| Holdings | 21 Specimens held in the Harvard University Herbaria identified as Piper lacunosum var. angustifolium Trelease & Yuncker |
| Identification made in | [no date] (21) |
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