Persicaria trigonocarpa (Makino) Nakai (Synonym : Persicaria erecto-minor (Makino) Nakai var. trigonocarpa (Makino) H.Hara ex I.Ito)

Family : Polygonaceae

Persicaria viscofera (Makino) H.Gross (Synonym : Polygonum makinoi Nakai)

Family : Polygonaceae

Persicaria viscofera (Makino) H.Gross var. robusta (Makino) Hiyama (Synonym : Polygonum viscoferum Makino subsp. robustum (Makino) Kitam.)

Family : Polygonaceae

Persicaria viscosa (Buch.-Ham. ex D.Don) H.Gross ex T.Mori (Synonym : Polygonum viscosum Buch.-Ham. ex D.Don)

Family : Polygonaceae

Petasites japonicus (Siebold & Zucc.) Maxim. (Synonym : Nardosmia japonica Siebold & Zucc.)

Family : Asteraceae

Petasites rubellus (J.F.Gmel.) M.Toman (Synonym : Tussilago rubella J.F.Gmel.)

Family : Asteraceae

Petrorhagia nanteuilii (Burnat) P.W.Ball & Heywood (Synonym : Dianthus nanteuilii Burnat)

Family : Caryophyllaceae [Naturalized plant]

Petunia × hybrida E.Vilm. (Synonym : Petunia violacea Lindl. var. hybrida Hook.)

Family : Solanaceae

Peucedanum coreanum Nakai (Synonym : Ligusticum coreanum (Nakai) M.Hiroe)

Family : Apiaceae

Peucedanum hakuunense Nakai (Synonym : Peucedanum terebinthaceum (Fisch. ex Trevir.) Fisch. ex Turcz. var. hakuunense (Nakai) M.Kim)

Family : Apiaceae