- passion-fruit
- pastel
- patchouli
- pea
- pear
- pedicellate
- peduncle
- pedunculate
- peepul
- pellitory
- peloria
- pelta
- peltae
- peach
- peach-tree
- pear-tree
- pecan
- pedaliaceae
- pedate
- pedatifid
- pedicel
- pedicle
- pediculate
- peduncular
- pelargonium
- peltate
- peltinervate
- pennyroyal
- pennywort
- pentacapsular
- pentagynous
- pentandrous
- pentaphyllous
- pentstemon
- pepper-grass
- peppermint
- perennial
- perfoliate
- pericambium
- pentamerous
- pentapetalous
- peony
- perfect
- perianth
- periblem
- pericarp
- periclinal
- pericycle
- periderm
- perigynium
- perilla
- peristome
- perithecium
- persimmon
- petaled
- petalled
- petunia
- phalanx
- phanerogam
- phanerogamic
- perisperm
- periwinkle
- perm
- petal
- petiole
- phalange
- phalanges
- phanerogamous
- phelloderm
- phellogen
- phellum
- philodendron
- phloem
- phlox
- phormium
- phragmoplast
- pilewort
- pine
- pinnate
- phycomycete
- phylloclade
- phytocoenoses
- phytography
- phytotoxin
- pinaster
- pinguin
- pinnule
- pissabed
- pistillary
- pistillate
- pistillody
- picayune
- piliferous
- pine-tree
- pink
- pinna
- pinnated
- pistil
- pistilliferous
- pitcher