Penninerved (penninervius). With pinnate nervation.
Perennial (perennis). Not perishing after maturity, the underground part of the stem at least remaining alive.
Perianth (perianthium). Floral envelope, i.e., the aggregate of the modified leaves surrounding the stamens and carpels and forming part of the flower.
Pericarp (pericarpium). The wall of the fruit enclosing the seeds.
Perigynous (perigynus). Inserted upon the margin of a more or less concave receptacle which is free from the ovary, at some distance from and usually higher than the ovary.
Persistent (persistens). Remaining on the plant at the time of maturity.
Petal (petalum). One of the inner perianth-leaves, usually differing from the outer in the larger size, the softer texture, and the bright colour.
Petaloid (petaloideus). Petal-or corolla-like.
Petiole (petiolus). The foot-stalk of a leaf.
Phyllode (phyllodium). A broadened, leaf-like branch.