A leaf is the principal lateral appendage of the stem which is in turn part of a plant. Hence a leave is an organ of a vascular plant. The shoot is formed together by the stem and the leaves. Foliage is a term used for referring leaves collectively. As is one must have often heard, 'autumn foliage'. The characteristic of this plant organ is that it is a dorsoventrally flattened organ, usually borne above the ground, and specialised for its function of photosynthesis. Photosynthesis is the process of converting the intake of carbon dioxide into oxygen. The primary photosynthesis tissue, in most leaves, known as palisade mesophyll, is located on the upper side of the blade or lamina of the leaf. However there are still exceptions, like in some species, including the mature foliage of Eucalypts, palisade mesophyll is present on both sides and these leaves are said to be isobilateral.
Many leaves have a distinct upper surface, also known as adaxial and distinct lower surface called abaxial which differ in colour, the number of stomata ( stomata are the pores present on leaves that intake and output gases), hairiness, the amount and structure of epicuticular wax and other features. When talking about the colour of leaves, they are mostly green, but there are always exceptions.

In this sub category you can download free PNG images: Leaf Miscellaneous. In this category "Leaf" we have 5 free PNG images with transparent background.

  • Art Of Arctic Lone Computer Wolf Prey PNG Image
    Art Of Arctic Lone Computer Wolf Prey
    Format: PNG
    Resolution: 1000x1000
    Size: 39.6KB
    Downloads: 292
  • Art Icons Comics Balloon Computer Speech Leaf PNG Image
    Art Icons Comics Balloon Computer Speech Leaf
    Format: PNG
    Resolution: 744x646
    Size: 27.3KB
    Downloads: 270
  • Steel Leaf Of Photography Fallout Brotherhood Monochrome PNG Image
    Steel Leaf Of Photography Fallout Brotherhood Monochrome
    Format: PNG
    Resolution: 1024x1219
    Size: 70.7KB
    Downloads: 246
  • Plant Mubarak Wish Tree Stem Eid Year PNG Image
    Plant Mubarak Wish Tree Stem Eid Year
    Format: PNG
    Resolution: 527x800
    Size: 342.8KB
    Downloads: 227

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