Potato Bean Potato Bush, Blue (spp.)
Potato 'Norland' Potato Vine (spp.)
Potato Vine Variegated Potato Vine, Wild
Potato Vine: wendlandii Potato, African
Potato, Irish 'Norland' Potato, White 'Norland'
Potentilla (spp.) Potentilla 'Abbottswood'
Potentilla 'Apricot Whisper' Potentilla 'Arbuscula'
Potentilla 'Beanii' Potentilla 'Coronation Triumph'
Potentilla 'Dakota Goldspot®' Potentilla 'Dakota Sunrise'
Potentilla 'Dakota Sunspot™' Potentilla 'Dart's Golddigger'
Potentilla 'Floppy Disc' Potentilla 'Gold Drop'
Potentilla 'Gold Gem' Potentilla 'Goldfinger'
Potentilla 'Happy Face® Pink Paradise' Potentilla 'Happy Face® White'
Potentilla 'Happy Face® Yellow' Potentilla 'Jackmanii'
Potentilla 'Katherine Dykes' Potentilla 'Lady Daresbury'
Potentilla 'Longacre' Potentilla 'Manelys'
Potentilla 'McKay's White' Potentilla 'Mount Townsend'
Potentilla 'Parvifolia' Potentilla 'Pink Beauty'
Potentilla 'Pink Whisper' Potentilla 'Primrose Beauty'
Potentilla 'Princess' Potentilla 'Snowbird'
Potentilla 'Sundance' Potentilla 'Sunset'
Potentilla 'Sutter's Gold' Potentilla 'Vilmoriniana'
Pothos Ivy (spp.) Pothos Ivy 'Tropic Green'
'Pottenii' Lawson's Cypress 'Potter's Purple' Butterflybush
Pouch Flower Powder Puff Tree
Powder-Puff Cactus Powderpuff (spp.)
Powderpuff Dwarf Powderpuff, American
'Powis Castle' Large Wormwood 'Praecox' Panicle Hydrangea
Prague Viburnum (spp.) Prague Viburnum 'Decker'
Praire Coneflower Praire Flax
Prairie Blazing Star 'Prairie Blue Eyes' Daylily
Prairie Cord Grass 'Aureo-marginata' Prairie Crabapple
Prairie Double-flowered Buttercup (spp.) Prairie Double-flowered Buttercup 'Buttered Popcorn'
Prairie Double-flowered Buttercup 'Pleniflorus' Prairie Dropseed Grass
Prairie Gentian (spp.) Prairie Gentian 'Blue Lisa'
Prairie Gentian 'Forever Blue' Prairie Gentian 'Yodel Blue'
Prairie Grass (spp.) Prairie Grass 'The Blues'
'Prairie Joy' Rose Prairie Mallow 'Elsie Heugh'
'Prairie Moonlight' Daylily Prairie Onion
'Prairie Petite' Lilac 'Prairie Pride' Common Hackberry
Prairie Sage (spp.) Prairie Sage 'Silver Queen'
'Prairie Sentinel' Pond Cypress Prairie Smoke
Prairie Spiderwort 'Prairie Sun' Black-eyed Susan
Prairie Zinnia 'Prairifire' Flowering Crabapple
Pratia Prayer Plant (spp.)
Prayer Plant 'Herringbone Plant' Prayer Plant: leuconeura kerchoviana
'Precious Platinum' Rose