Platanus orientalis
Oriental Plane
Platanus x hispanica
London Plane
Platycerium bifurcatum
Elkhorn Fern
Platycerium coronarium
Elkhorn fern
Plumeria obtusa
Frangipani
Poa annua
Annual Meadow-grass
Polemonium pauciflorum
Fewflower Jacob's-ladder
Polygala calcarea
Chalk Milkwort
Polygala fruticosa
Feather Dusters
Polygala serpyllifolia
Heath Milkwort
Polygala vulgaris
Common Milkwort
Polygonatum multiflorum
Solomon's-seal
Polygonatum odoratum
Angular Solomon's-seal
Polygonatum verticillatum
Whorled Solomon's-seal
Polygonatum x hybridum
Garden Solomon's-seal
Polygonum arenastrum
Equal-leaved Knotgrass
Polygonum oxyspermum
Ray's Knotgrass
Polypodium cambricum
Southern Polypody
Polypodium interjectum
Intermediate Polypody
Polypodium vulgare
Polypody
Polypogon viridis
Water Bent
Polyscias fruticosa
Ming Aralia
Polystichum aculeatum
Hard Shield-fern
Polystichum setiferum
Soft Shield-fern