Petiolate. Having petioles, not sessile.
Petiole. The stalk of a leaf.
Petiolulate. Having petiolules.
Petiolule. The stalk of a leaflet in a compound leaf.
Pinnate. Descriptive of compound leaves with the leaflets arranged on opposite sides along a common rachis. Also used to describe leaf venation.
Pistil. The seed-bearing organ of the flower.
Pistillate. Provided with pistils; usually descriptive of unisexual flowers.
Polygamous. Bearing perfect and unisexual flowers on the same plant.
Polymorphic. Having two or more forms.
Pubescent. Covered with fine, soft, short hairs.