| Piper verbascifolium (Miq.) C. DC., 1869 |
| Piper vergelense Trel. & Standl., 1952 |
| Piper vestitifolium C. DC., 1920 |
| Piper villiramulum C. DC., 1920 |
| Piper virginicum Trel. & Standl., 1952 |
| Piper williamsii Trel., 1927 |
| Piper wydlerianum C. DC., 1869 |
| Piper xanthostachyum C. DC., 1897 |
| Piper yucatanense C. DC., 1872 |
| Piper yunckeri Trel., 1938 |
| Piper yzabalanum C. DC., 1894 |
| Piper zacuapanum C. DC., 1869 |
| Piperaceae Giseke, 1792 |
| Piperoideae Arn., 1832 |
| Pothomorphe Miq., 1839 |
| Pothomorphe dombeyana Miq., 1843 |
| Pothomorphe lessertiana Miq., 1843 |
| Pothomorphe peltata (L.) Miq., 1840 |
| Pothomorphe umbellata (L.) Miq., 1840 |
| Rhynchophorum (Miq.) Small, 1933 |