A leaf is the associate organ of a tracheophyte and is that the principal lateral appendage of the stem. The leaves and stem along with type the shoot. Leaves are together said as foliage, as in 'autumn foliage'. A leaf is the associate organ of a tracheophyte and is that the principal lateral appendage of the stem. The leaves and stem along with type the shoot. Leaves are together said as foliage, as in 'autumn foliage'.
A leaf could be a skinny, dorsiventrally planar organ, sometimes borne on top of the ground and specialised for chemical change. In most leaves, the first chemical process tissue, the palisade mesophyll, is found on the side of the blade or plate of the leaf. However in some species, together with the mature foliage of Eucalyptus, palisade mesophyll is gift on each side and also the leaves are aforementioned to be bilaterally symmetric. Most leaves have a distinct side (ad axial) and lower surface (axial) that take issue in colour, hairiness, the number of stomata (pores that intake and output gases), the quantity and structure of epicuticular wax and different options.
Leaves will have many various shapes, sizes and textures. The broad, flat leaves with complicated venation of flowering plants are called megaphylls and also the species that bear them, the bulk, as broad-leafed or megaphyllous plants. Within the clubmosses, with totally different biological process origins, the leaves are straightforward (with solely one vein) and are called microphylls. Some leaves, like bulb scales, don't seem to be on top of the ground. In several aquatic species, the leaves are submerged in water. Succulent plants typically have thick juicy leaves, however, some leaves ar while not major chemical process operates and will be dead at maturity, as in some cataphylls and spines. What is more, many sorts of leaf-like structures found in tube-shaped structure plants don't seem to be completely homologous with them. Examples embody planar plant stems known as phylloclades and cladodes, and planar leaf stems known as phyllodes that take issue from leaves each in their structure and origin. Some structures of non-vascular plants look and performance very like leaves. Examples embody the phyllids of mosses and liverworts. Midvein (Primary vein) Secondary Leaf.

In this sub category you can download free PNG images: Leaves Nature. In this category "Leaves" we have 123 free PNG images with transparent background.

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  Images Ivy Hanging Download HQ
  Format: PNG
  Resolution: 400x582
  Size: 268.6KB
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  Fresh Leaves Green Free HQ Image
  Format: PNG
  Resolution: 3840x2160
  Size: 3.7MB
  Downloads: 99
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  Fresh Leaves Green Free Transparent Image HQ
  Format: PNG
  Resolution: 512x376
  Size: 81.5KB
  Downloads: 100
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  Fresh Leaves Green Download Free Image
  Format: PNG
  Resolution: 1591x2624
  Size: 2.9MB
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  Leaves Green HD Image Free
  Format: PNG
  Resolution: 900x464
  Size: 152.5KB
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  Leaves Green Free Download Image
  Format: PNG
  Resolution: 3376x3516
  Size: 3.5MB
  Downloads: 66
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  Leaves Green HD Image Free
  Format: PNG
  Resolution: 512x384
  Size: 66.9KB
  Downloads: 58
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  Leaves Green Free HD Image
  Format: PNG
  Resolution: 2000x2021
  Size: 5.3MB
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  Green Leaves Organic Download HD
  Format: PNG
  Resolution: 2565x2574
  Size: 1.9MB
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  Photos Single Green Leaves Free Transparent Image HQ
  Format: PNG
  Resolution: 872x1023
  Size: 52.2KB
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  Leaves Free Download Png
  Format: PNG
  Resolution: 600x321
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  Leaves Png
  Format: PNG
  Resolution: 736x993
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  Leaves Png File
  Format: PNG
  Resolution: 1023x687
  Size: 963.0KB
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  Leaves Png Picture
  Format: PNG
  Resolution: 3376x3516
  Size: 3.5MB
  Downloads: 941
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  Falling Leaves Transparent
  Format: PNG
  Resolution: 3742x1915
  Size: 1.8MB
  Downloads: 413
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  Falling Leaves
  Format: PNG
  Resolution: 1600x1003
  Size: 1.4MB
  Downloads: 383
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  Green Leaves
  Format: PNG
  Resolution: 1024x746
  Size: 381.0KB
  Downloads: 317
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  Green Leaves Clipart
  Format: PNG
  Resolution: 1591x2624
  Size: 1.2MB
  Downloads: 431
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  Water Drop Leaf Dew Free Transparent Image HD
  Format: PNG
  Resolution: 3000x2804
  Size: 5.1MB
  Downloads: 92
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  Water Drop Leaf Dew Free Clipart HQ
  Format: PNG
  Resolution: 1200x630
  Size: 603.5KB
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