Filters
Polemonium chartaceum H. Mason
Polemonium flavum E. Greene.
Polemonium foliosissimum A.Gray var. flavum (Greene) Anway
Polemonium pauciflorum S. Wats.
Polemonium pulcherrimum Hook. var. delicatum (Rydb.) Cronquist
Polemonium pulcherrinum Hook.
Polemonium reptans L.
Polemonium viscosum Nutt.
Polemonium yezoense (Miyabe & Kudo) Kitam.
Poliomintha incana (Torr.) A.Gray
Pollia japonica Thunb.
Polygala calcarea F.W. Schultz 'Lillet'
Polygala calcarea F.W. Schultz.
Polygaloides chamaebuxus (L.) O.Schwarz
Polygaloides chamaebuxus (L.) O.Schwarz 'Grandiflora'
Polygaloides chamaebuxus (L.) O.Schwarz 'Kamniski'
Polygaloides chamaebuxus (L.) O.Schwarz 'Rhodoptera'
Polygonatum falcatum Gray.
Polygonatum hookeri Bak.
Polygonatum humile Fisch. & Maxim.
Polygonatum kingianum Collett & Hemsley
Polygonatum multiflorum (L.) All.
Polygonatum odoratum (Mill.) Druce
Polygonatum prattii Baker
Polypodium vulgare L.
Polystichum aculeatum (L.) Roth
Polystichum polyblepharum (Roem. ex Kunze) C. Presl
Polystichum setiferum (Forssk.) Moore ex Woyn. 'Densum'
Polystichum setiferum (Forssk.) Moore ex Woyn. 'Herrenhausen'
Polytrichum commune Hedw.