| Name | Piper guayranum var. humilior (C. de Candolle) Trelease & Yuncker |
| Authorship | (C. de Candolle) Trelease & Yuncker |
| Rank | Variety |
| Placed in | Piper guayranum C. de Candolle |
| Citation | 1950 Piperac. N. South Amer. 1: 302–303 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Piper guayranum var. humilior (C. de Candolle) Trelease & Yuncker |
| Identification made in | [no date] (6) |
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