'Pluto' Philodendron PMC Manzanita
'Pocahontas' Lilac: hyacinthiflorahybrid 'Pocohantas' Possum Haw Holly
Podocarp, Chilean Podocarp, Rockingham
Podocarp, Tasmanian Podocarp, Willow
Podocarp, Willowleaf Podocarpus
Podocarpus, Broadleaf Podocarpus, Chinese (spp.)
Podocarpus, Chinese 'Maki' Podocarpus, Fern
Podocarpus, Long Leafed Yellowwood Podocarpus, Nagi
Podocarpus, Weeping Podocarpus: gracilior
Podocarpus: latifolius Podocarpus: usambarensis
Poet's Jasmine 'Fiona Sunrise' Pohinahina (spp.)
Pohinahina 'Wild Korea' Poinciana
Poinciana, Dwarf Poinciana, Mexican
Poinciana, Royal Poinciana, Yellow
Poinciana: dubium 'Poinsett' Flowering Dogwood
Poinsettia (spp.) Poinsettia 'Peterstar Silver Bells'
Poinsettia 'V-14 Pink' Poinsettia 'V-17 Angelika White'
Poinsettia 'Winter Rose' 'Point Reyes' Manzanita
Point Reyes Ceanothus Point Reyes Ceanothus: gloriosus
Point Reyes Creeper Point Reyes Creeper: gloriosus
Poison Ivy Poison Mercury
Poison Oak, Western Poison Sumac
Poisontree, Florida Poisonwood
Poisonwood, Black 'Polka' Old Fashioned Weigela
Pomaderris Pomaderris, Golden
Pomegranate (spp.) Pomegranate Dwarf
Pond Apple Pond Cypress (spp.)
Pond Cypress 'Morris (Debonair)' Pond Cypress 'Prairie Sentinel'
Pond Pine Pondcypress (spp.)
Pondcypress 'Morris (Debonair)' Pondcypress 'Prairie Sentinel'
Ponderosa Pine Pondoland Palm
Pongam Ponil
Pontic Azalea Poonga Oil Tree
'Poorinda Golden Lyre' Spider Flower Pop Ash
'Popcorn' Doublefile Viburnum: plicatum Poplar
Poplar Eucalyptus Poplar, Black 'Italica'
Poplar, Canadian (spp.) Poplar, Canadian 'Siouxland'
Poplar, Carolina (spp.) Poplar, Carolina 'Siouxland'
Poplar, Chinese Poplar, Chinese Necklace
Poplar, Fremont Poplar, Grey
Poplar, Lombardy 'Italica' Poplar, Necklace
Poplar, Silver (spp.) Poplar, Silver 'Nivea'
Poplar, Silver 'Pyramidalis' Poplar, Silverleaf (spp.)
Poplar, Silverleaf 'Nivea' Poplar, Silverleaf 'Pyramidalis'
Poplar, Tulip (spp.) Poplar, Tulip 'Arnold'
Poplar, Tulip 'Glen Gold' Poplar, White (spp.)
Poplar, White 'Nivea' Poplar, White 'Pyramidalis'
Poplar, Yellow (spp.) Poplar, Yellow 'Arnold'
Poplar, Yellow 'Glen Gold' Poplar: dimorpha
Poplar: monticola Poplar: songarica
Poplar: wilsonii