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BookmarkIn botany, a leaf is an above-ground plant organ specialized for photosynthesis.
A leaf is typically flat and thin, to expose the chloroplast containing cells to light over a broad area, and to allow light to penetrate fully into the tissues.
Leaves are also the sites in most plants where respiration, transpiration, and guttation take place..
For more information about the topic Leaf, read the full article at Wikipedia.org, or see the following related articles:
Deciduous — In botany, deciduous plants, principally trees and shrubs, are those that lose all of their foliage for part of the year. In some cases, the foliage ... > read more
Leaf vegetable — Leaf vegetables, also called potherbs, greens, or leafy greens, are plant leaves eaten as a vegetable, sometimes accompanied by tender petioles and ... > read more
Biological tissue — Biological tissue is a collection of interconnected cells that perform a similar function within an organism. The study of tissue is known as ... > read more
Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Leaf at Wikipedia.org. See the Wikipedia copyright page for more details.
