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138 pepper plants, birthworts, and allies species
Piper nigrum
Aristolochia foetida
Aristolochia trilobata
Aristolochia gibertii
Peperomia trichopus
Aristolochia littoralis
Aristolochia californica
Peperomia prostrata
Asarum chueyi
Asarum harperi
Asarum virginicum
Asarum lewisii
Asarum contractum
Asarum heterophyllum
Asarum minus
Asarum naniflorum
Asarum rhombiformis
Peperomia pallida
Peperomia urocarpa
Piper unguiculatum
Piper cubeba
Piper betle
Peperomia bicolor
Peperomia incana
Peperomia griseoargentea
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