Piper
Piper longum
Piper nigrum
Piper retrofractum (Cultivated)
Piper species
Piper umbellatum (Introduced)
Piper galeatum
Piper trichostachyon
Piper arboreum (Cultivated)
Piper betle (Introduced)
Piper aduncum (Indonesia) ?
Piper acutistigmum
Piper mullesua
Piper divaricatum (Cultivated)
Piper attenuatum
Piper betleoides
Piper sylvaticum
Piper lonchites
Piper ornatum (Cultivated- USA)
Piper suipigua