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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  Green Leaves Organic Free PNG HQ
  Format: PNG
  Resolution: 2800x2099
  Size: 6.9MB
  Downloads: 57
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  Green Leaves Organic PNG Free Photo
  Format: PNG
  Resolution: 1700x1246
  Size: 2.0MB
  Downloads: 76
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  Green Leaves Organic Free HQ Image
  Format: PNG
  Resolution: 505x512
  Size: 198.6KB
  Downloads: 52
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  Single Green Leaves Free Transparent Image HD
  Format: PNG
  Resolution: 1985x2432
  Size: 2.5MB
  Downloads: 52
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  Single Pic Green Leaves Free Transparent Image HQ
  Format: PNG
  Resolution: 512x512
  Size: 124.1KB
  Downloads: 57
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  Single Green Leaves PNG Free Photo
  Format: PNG
  Resolution: 1024x768
  Size: 426.8KB
  Downloads: 56
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  Single Green Leaves Download HQ
  Format: PNG
  Resolution: 850x763
  Size: 469.3KB
  Downloads: 65
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  Leaves Picture
  Format: PNG
  Resolution: 1024x630
  Size: 635.5KB
  Downloads: 893
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  Green Leaves File
  Format: PNG
  Resolution: 1600x1200
  Size: 593.1KB
  Downloads: 467
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  Green Leaves Transparent
  Format: PNG
  Resolution: 2686x2818
  Size: 1.3MB
  Downloads: 351
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  Leaves Transparent
  Format: PNG
  Resolution: 848x1009
  Size: 593.4KB
  Downloads: 1,450
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  Leaves Download Png
  Format: PNG
  Resolution: 1024x746
  Size: 381.0KB
  Downloads: 745
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  Autumn Leaves File
  Format: PNG
  Resolution: 400x382
  Size: 113.4KB
  Downloads: 678
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  Real Leaves Image
  Format: PNG
  Resolution: 401x301
  Size: 161.7KB
  Downloads: 655
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  Real Leaves Transparent Image
  Format: PNG
  Resolution: 425x404
  Size: 243.8KB
  Downloads: 636
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  Falling Leaves Image
  Format: PNG
  Resolution: 1024x1338
  Size: 314.9KB
  Downloads: 524
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  Real Leaves Transparent Background
  Format: PNG
  Resolution: 1024x746
  Size: 381.0KB
  Downloads: 356
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  Real Leaves File
  Format: PNG
  Resolution: 1024x819
  Size: 625.8KB
  Downloads: 672
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  Autumn Leaves Clipart
  Format: PNG
  Resolution: 1024x928
  Size: 1.0MB
  Downloads: 419
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  Green Leaves Transparent Background
  Format: PNG
  Resolution: 1920x550
  Size: 113.7KB
  Downloads: 470

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