Leaflet (botany)

Palmately compound leaf of hemp

A leaflet in botany is a leaf-like part of a compound leaf. Though it resembles an entire leaf, a leaflet is not borne on a main plant stem or branch, as a leaf is, but rather on a petiole or a branch of the leaf. Compound leaves are common in many plant families and they differ widely in morphology. The two main classes of compound leaf morphology are palmate and pinnate. For example, a hemp plant has palmate compound leaves, whereas some species of Acacia have pinnate leaves.

The ultimate free division (or leaflet) of a compound leaf, or a pinnate subdivision of a multipinnate leaf is called a pinnule or pinnula.

Pinnate leaf of an Acacia with 10 leaflets
Mimosa pudica folding leaflets inward.

Plant cells	Cell wall Phragmoplast Plastid Plasmodesmata Vacuole

Tissues	Meristem Vascular tissue Vascular bundle Ground tissue Mesophyll Cork Wood Storage organs

Vegetative	Root Rhizoid Bulb Rhizome Shoot Stem Leaf Petiole Cataphyll Bud Sessility

Reproductive (Flower)	Flower development Inflorescence Umbel Raceme Bract Pedicellate Flower Whorl Floral symmetry Floral diagram Floral formula Receptacle Hypanthium (Floral cup) Perianth Tepal Petal Sepal Sporophyll Gynoecium Ovary Ovule Stigma Archegonium Androecium Stamen Staminode Pollen Tapetum Gynandrium Gametophyte Sporophyte Plant embryo Fruit Fruit anatomy Berry Capsule Seed Seed dispersal Endosperm

Surface structures	Epicuticular wax Plant cuticle Epidermis Stoma Nectary Trichome Prickle

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This article is issued from Wikipedia - version of the Tuesday, March 15, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.

Leaflet (botany)

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