Piperales
Family: Aristolochiaceae
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
| Thottea dalzellii | Access |
Family: Piperaceae (Peppers)
| Scientific Name | Author/s | Common Name | Last Record | Distribution | Status | Taxon Profile |
Peperomia aphanoneura | Access | |||||
| Peperomia buxifolia | Access | |||||
| Peperomia cordilimba | Access | |||||
| Peperomia crypticola | C. DC. | - | Minas Gerais (eastern) & Rio de Janeiro (western), Brazil | Rediscovered | Access | |
Peperomia dauleana | Access | |||||
| Peperomia degeneri | Yunck. | 1928 | Molokai, Hawaiian Islands, USA | Missing | Access | |
| Peperomia discifolia | Access | |||||
| Peperomia glandulosa | Access | |||||
| Peperomia guayaquilensis | Access | |||||
| Peperomia hirta | Access | |||||
| Peperomia involucrata | Access | |||||
| Peperomia leucorrhachis | Access | |||||
| Peperomia litana | Access | |||||
| Peperomia micromerioides | Access | |||||
| Peperomia mitchelioides | Access | |||||
| Peperomia parvilimba | Access | |||||
| Peperomia peploides | Access | |||||
| Peperomia petraea | Access | |||||
| Peperomia pichinchae | Access | |||||
| Peperomia pululaguana | Access | |||||
| Peperomia rodriguezi | Access | |||||
| Peperomia rossii | Access | |||||
| Peperomia stenostachya | Access | |||||
| Peperomia subpetiolata | Yunck. | c.2000 | Maui, Hawaiian Islands, USA | Missing | Access | |
| Peperomia tablahuasiana | Access | |||||
Piper collinum | Access | |||||
| Piper molliusculum | Access |