Pentactina rupicola Nakai

Family : Rosaceae

Pentarhizidium orientale (Hook.) Hayata (Synonym : Onoclea orientalis (Hook.) Hook.)

Family : Onocleaceae

Penthorum chinense Pursh (Synonym : Penthorum sedoides L. subsp. chinense (Pursh) S.Y.Li & Adair)

Family : Penthoraceae

Peracarpa carnosa (Wall.) Hook.f. & Thomson (Synonym : Peracarpa carnosa Hook.f. & Thomson var. circaeoides (F.Schmidt ex Miq.) Makino)

Family : Campanulaceae

Perilla frutescens (L.) Britton (Synonym : Perilla ocimoides L.)

Family : Lamiaceae

Perilla frutescens (L.) Britton var. crispa (Benth.) W.Deane (Synonym : Dentidia nankinensis Lour.)

Family : Lamiaceae

Peristylus densus (Lindl.) Santapau & Kapadia (Synonym : Coeloglossum flagelliferum (Makino) Maxim. ex Makino)

Family : Orchidaceae

Persicaria amphibia (L.) Delarbre (Synonym : Chulusium fluitans Raf.)

Family : Polygonaceae

Persicaria breviochreata (Makino) Ohki (Synonym : Polygonum breviochreatum Makino)

Family : Polygonaceae

Persicaria bungeana (Turcz.) Nakai (Synonym : Polygonum bungeanum Turcz.)

Family : Polygonaceae