Painted Nettle

Pale Persicaria

Palmarosa

Palmyra Palm

Panicled Swertia

Pareira

Parsley Piert

Parthenium Weed

Passionflower

Patchouli

Pau d’Arco

Peacock Flower

Peking Spurge

Pelargonium

Pellitory

Pellitory-of-the-Wall

Pennyroyal

Peony Root

Perfoliate Bellwort

Pergularia

Perilla

Periwinkle

Peruvian Balsam

Peruvian Bark

Peyote

Pheasants Eye

Philippine Fig

Pholidota

Phyllanthus

Physic Nut

Picrorrhiza

Pilewort

Pill-bearing Spurge

Pine

Pinellia

Pink Arnebia

Pinkroot

Pipsissewa

Pithraj Tree

Pleurisy Root​

Plumed Cockscomb

Poison Ivy

Pokeweed

Polypody

Ponderosa Pine

Poplar

Prickly Ash

Prickly Fanpetals

Prickly Lettuce

Primula

Pseudoginseng

Pulsatilla

Puncture Vine

Purging Buckthorn

Purple Loosestrife

Purple Sand-Spurrey

Purple Tephrosia

Purslane

Pushkaramula

Pygeum