| Piper glabellum Sw., 1788 |
| Piper glabrescens (Miq.) C. DC., 1869 |
| Piper glaucescens Jacq., 1815 |
| Piper grandilimbum C. DC., 1920 |
| Piper guazacapanense Trel. & Standl., 1952 |
| Piper heydei C. DC., 1894 |
| Piper hirsutum Sw., 1797 |
| Piper hispidulum Sw., 1788 |
| Piper hispidum Sw., 1788 |
| Piper holdridgeanum W.C. Burger, 1971 |
| Piper humile Vahl, 1805 |
| Piper indignum Trel., 1929 |
| Piper instabilipes Trel., 1937 |
| Piper ixocubvainense Standl. & Steyerm., 1952 |
| Piper ixtlanense Callejas, 2020 |
| Piper jacquemontianum Kunth, 1839 |
| Piper jalapense M. Martens & Galeotti, 1843 |
| Piper jalapense (Miq.) C. DC., 1869 |
| Piper jaliscanum S. Watson, 1891 |
| Piper karwinskianum (Kunth) Kunth ex C. DC., 1869 |