Possum Haw Holly (spp.) Possum Haw Holly 'Benton'
Possum Haw Holly 'Byers Golden' Possum Haw Holly 'Cascade'
Possum Haw Holly 'Council Fire' Possum Haw Holly 'Hunter'
Possum Haw Holly 'Miller City' Possum Haw Holly 'Pocohantas'
Possum Haw Holly 'Sentry' Possum Haw Holly 'Sundance'
Possum Haw Holly 'Warren's Red' Possumwood
Post Oak 'Postelense' Hedge Maple
'Pottenii' Lawson's Cypress Powderpuff (spp.)
Prairie Crabapple 'Prairie Pride' Common Hackberry
'Prairie Sentinel' Pond Cypress 'Prairifire' Flowering Crabapple
Prickley Ash, Lime Prickly Acacia
Prickly Ash, Chinese Prickly Ash, Common
Prickly Ash, Flatspine Prickly Ash, Northern
Prickly Ash, Southern Prickly Castor Oil Tree
Prickly Cedar Prickly Juniper
Prickly Leaved Paperbark Prickly Leaved Wattle
Prickly Moses Pride of Bolivia
Pride of India (spp.) Pride of India 'Jade Snowflake'
'Princess Diana' Apple Serviceberry Princess Palm
Princess Tree Princess Tree: tomentosa
'Princeton' American Elm 'Prinz Handjeryi' Planetree Maple
'Pristine' Saucer Magnolia: soulangianahybrid Privet, Chinese (spp.)
Privet, Chinese 'Excelsum Superbun' Privet, Chinese 'Tricolor'
Privet, Florida Privet, Glossy (spp.)
Privet, Glossy 'Excelsum Superbun' Privet, Glossy 'Tricolor'
Privet, Japanese (spp.) Privet, Mock
Privet, Texas (spp.) Privet, Waxleaf (spp.)
Privet: sinense, Chinese Variegated 'Professor Sprenger' Flowering Crabapple
'Profusion' Flowering Crabapple 'Prostrata' Coast Redwood
Provision Tree 'Pseudocupressus' Eastern Red Cedar
Puerto Rican Royal Palm Puka
Pukanui 'Pulcherrima' American Arborvitae
'Pulveralenta' Northern Catalpa Puriri
'Purpendens' Yoshino Cherry Purple Coned Spruce
Purple Glory Tree Purple Leaf Mimosa
Purple Orchid Tree 'Purple Prince' Saucer Magnolia: soulangianahybrid
'Purple Robe' Black Locust Purple Trumpet Tree
Purpleblow Maple (spp.) Purpleblow Maple 'Dissectum'
'Purpurea' Bailey Acacia 'Purpureum' Planetree Maple
Pussy Willow (spp.) Pussy Willow Weeping
Pussy Willow: discolor 'Pygmaea' Chinese Elm
'Pygmaea' Flowering Dogwood 'Pygmaea' Norway Spruce
Pygmy Date Palm 'Pyramidale' Silver Maple
'Pyramidalis' American Arborvitae 'Pyramidalis' American Linden
'Pyramidalis' Chinese Juniper 'Pyramidalis' Eastern Red Cedar
'Pyramidalis' European Alder 'Pyramidalis' White Poplar
Quaking Aspen