| Paeonia |
Peony |
 |
| Paeonia delavayi angustiloba |
Chinese Tree Peony |
 |
| Paeonia veitchii woodwardii |
Chinese Peony |
|
| Pancratium maritimum |
Sea Daffodil |
 |
| Pandanus utilis |
Screw Pine |
|
| Pandorea jasminoides |
Bower Plant, Bower Vine |
|
| Pandorea pandorana |
Wonga Wonga Vine |
|
| Papaver (many) |
Poppy |
 |
| Papaver orientale |
Oriental Poppy |
 |
| Papaver rhoeas |
Field Poppy, Flanders Poppy |
|
| Papaver somniferum |
Opium Poppy |
|
| Paradisia lusitanica |
St Bruno's Lily |
|
| Parahebe perfoliata |
Digger's Speedwell |
|
| Parkinsonia aculeata |
Jerusalem Thorn |
|
| Parochetus communis |
Shamrock Pea, Blue Oxalis |
|
| Pasithea caerulea |
Blue Pasithea |
|
| Passiflora (many) |
Passionflower |
|
| Passiflora antioquiensis |
Passionflower |
|
| Passiflora caerulea |
Blue Passionflower |
|
| Passiflora cincinnata |
Crato Passion Flower |
|
| Passiflora edulis |
Passionfruit |
|
| Passiflora ligularis |
Passionflower |
|
| Passiflora mollissima |
Passionflower |
|
| Passiflora morifolia |
Passionflower |
|
| Passiflora racemosa |
Red Passion Flower |
|
| Passiflora subpeltata |
Passionflower |
|
| Passiflora x exoniensis |
Passionflower |
|
| Paulownia tomentosa |
Empress Tree, Foxglove Tree |
|
| Pavonia brasiliensis |
Pavonia |
|
| Pavonia rosea |
Pavonia |
|
| Pelargonium hortorum |
Geranium |
|
| Peltophorum ferrugineum |
Copperpod, Golden Flamboyant |
|
| Penstemon (many) |
Beard Tongue |
|
| Penstemon cardwellii |
Cardwell's Beard Tongue |
|
| Penstemon fruticosus |
Shrubby Penstemon, Bush Penstemon |
|
| Penstemon humilis |
Low Beard Tongue |
|
| Penstemon pinifolius |
Pine-leaf Penstemon |
|
| Penstemon pumilus |
Salmon River Beard Tongue |
|
| Penstemon serrulatus |
Cascade Penstemon |
|
| Penstemon whippleanus |
Whipple's Penstemon, Dark Beardtongue |
|
| Pentas lanceolata |
Egyptian Star Cluster |
|
| Pereskia aculeata |
Barbados Gooseberry |
|
| Pereskia grandiflora |
Rose Cactus |
|
| Pericallis 'Erfurt Dwarf' |
Cineraria |
|
| Pernettya mucronata |
Brickly Heath |
|
| Persicaria superba (orientale) |
Bistort |
|
| Petrea subserrata |
Queen's Wreath |
|
| Petrea volubilis |
Purple Wreath Vine |
|
| Petrocallis pyrenaica |
Pyrenean Whitlow Grass |
|
| Petrocoptis pyrenaica ssp glaucifolia |
Petrocoptis |
|
| Petunia grandiflora |
Petunia |
|
| Phacelia dubia |
Small-flowered Phacelia |
|
| Phacelia tanacetifolia |
Scorpion Weed |
|
| Phlomis (many) |
Jerusalem Sage |
|
| Phlomis italica |
Narrow-leaved Jerusalem Sage |
|
| Phlomis russeliana |
Jerusalem Sage |
|
| Phlomis tuberosa |
Jerusalem Sage |
|
| Phlox (many) |
Phlox |
|
| Phlox drummondii |
Annual Phlox |
|
| Phlox paniculata |
Perennial Phlox |
|
| Phoenix canariensis |
Canary Date Palm |
|
| Phoenix dactylifera |
Date Palm |
|
| Phoenix loureirii (humilis) |
Mountain Date Palm |
|
| Phoenix roebellii |
Pygmy Date Palm |
|
