From Citizendium, the Citizens' Compendium
Leaf (organ) : Any of numerous, typically flat structures protruding from a plant, whose function is to be exposed to sunlight for conducting photosynthesis for the plant.
This article contains just a definition and optionally other subpages (such as a list of related articles), but no metadata. if you want to expand this into a full article.
For other uses of the term, see Leaf (disambiguation)