This is a list of plant Genera, Species & Cultivars ... - PlantFile USA

Pomaderris ( Rhamnaceae )
* Pomaderris apetala
* Pomaderris elliptica
Pongamia ( Fabaceae )
* Pongamia pinnata
Populus ( Salicaceae )
* Populus alba
Populus alba 'Pyramidalis'
Populus alba 'Richardii'
* Populus deltoides
* Populus nigra var. Italica
Portulaca ( Portulacaceae )
* Portulaca grandiflora
Portulaca grandiflora 'Cloudbeater'
Portulaca grandiflora 'Sunnybank'
* Portulaca oleracea
Portulacaria ( Portulacaceae )
* Portulacaria afra
Portulacaria afra 'Foliisvariegatus'
Portulacaria afra 'Tricolor'
Portulacaria afra 'Variegata'
Potentilla ( Rosaceae )
* Potentilla aurea
* Potentilla fruiticosa
Potentilla fruiticosa 'Abbotswood'
Potentilla fruiticosa 'Beauty'
Potentilla fruiticosa 'Beesii'
Potentilla fruiticosa 'Coronation Triumph'
Potentilla fruiticosa 'Daydawn'
Potentilla fruiticosa 'Elizabeth'
Potentilla fruiticosa 'Farr'
Potentilla fruiticosa 'Friedrichsenii'
Potentilla fruiticosa 'Gold Drop'
Potentilla fruiticosa 'Goldfinger'
Potentilla fruiticosa 'Jackman'
Potentilla fruiticosa 'Katherine Dykes'
Potentilla fruiticosa 'Klondike'
Potentilla fruiticosa 'Longacre'
Potentilla fruiticosa 'Maanelys'
Potentilla fruiticosa 'Princess'
Potentilla fruiticosa 'Red Ace'
Potentilla fruiticosa 'Royal Flush'
Potentilla fruiticosa 'Snow Bird'
Potentilla fruiticosa 'Sunset'
Potentilla fruiticosa 'Tangerine'
Potentilla fruiticosa 'Tilford Cream'
Potentilla fruiticosa 'Yellow Gem'
Pratia ( Lobeliaceae )
* Pratia pedunculata
Preiphys ( Lilaceae )
* Preiphys ambeinensis
Primula ( Primulaceae )
* Primula auricula
Primula auricula 'Astolat'
Primula auricula 'C W Needham'
Primula auricula 'Helen Ruane'
Primula auricula 'Karen Cordrey'
* Primula bulleyana
* Primula denticulata
* Primula japonica
Primula japonica 'Apple Blossom'
Primula japonica 'Carminea'
Primula japonica 'Glowing Embers'