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.

  • Fresh Leaves Green Download Free Image PNG Image
    Fresh Leaves Green Download Free Image
    Format: PNG
    Resolution: 1591x2624
    Size: 2.9MB
    Downloads: 46
  • Leaves Green Free Clipart HD PNG Image
    Leaves Green Free Clipart HD
    Format: PNG
    Resolution: 715x715
    Size: 248.0KB
    Downloads: 46
  • Leaves Green HD Image Free PNG Image
    Leaves Green HD Image Free
    Format: PNG
    Resolution: 900x464
    Size: 152.5KB
    Downloads: 77
  • Leaves Green Free Transparent Image HD PNG Image
    Leaves Green Free Transparent Image HD
    Format: PNG
    Resolution: 1023x687
    Size: 315.8KB
    Downloads: 94
  • Photos Leaves Green Download HQ PNG Image
    Photos Leaves Green Download HQ
    Format: PNG
    Resolution: 1024x829
    Size: 237.6KB
    Downloads: 89
  • Leaves Green Free Download Image PNG Image
    Leaves Green Free Download Image
    Format: PNG
    Resolution: 3376x3516
    Size: 3.5MB
    Downloads: 66
  • Leaves Green HD Image Free PNG Image
    Leaves Green HD Image Free
    Format: PNG
    Resolution: 512x384
    Size: 66.9KB
    Downloads: 58
  • Leaves Green Free HD Image PNG Image
    Leaves Green Free HD Image
    Format: PNG
    Resolution: 2000x2021
    Size: 5.3MB
    Downloads: 86
  • Green Leaves Organic Free Download PNG HD PNG Image
    Green Leaves Organic Free Download PNG HD
    Format: PNG
    Resolution: 1600x1051
    Size: 1.2MB
    Downloads: 47
  • Green Leaves Organic Free PNG HQ PNG Image
    Green Leaves Organic Free PNG HQ
    Format: PNG
    Resolution: 2800x2099
    Size: 6.9MB
    Downloads: 57
  • Green Leaves Organic Download HD PNG Image
    Green Leaves Organic Download HD
    Format: PNG
    Resolution: 2565x2574
    Size: 1.9MB
    Downloads: 54
  • Green Leaves Organic Photos HD Image Free PNG Image
    Green Leaves Organic Photos HD Image Free
    Format: PNG
    Resolution: 848x1009
    Size: 589.6KB
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  • Green Leaves Organic PNG Free Photo PNG Image
    Green Leaves Organic PNG Free Photo
    Format: PNG
    Resolution: 1700x1246
    Size: 2.0MB
    Downloads: 76
  • Green Leaves Organic Free HQ Image PNG Image
    Green Leaves Organic Free HQ Image
    Format: PNG
    Resolution: 505x512
    Size: 198.6KB
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  • Green Leaves Organic PNG File HD PNG Image
    Green Leaves Organic PNG File HD
    Format: PNG
    Resolution: 1084x975
    Size: 817.1KB
    Downloads: 58
  • Single Green Leaves Free Transparent Image HD PNG Image
    Single Green Leaves Free Transparent Image HD
    Format: PNG
    Resolution: 1985x2432
    Size: 2.5MB
    Downloads: 52
  • Single Green Leaves Free PNG HQ PNG Image
    Single Green Leaves Free PNG HQ
    Format: PNG
    Resolution: 1885x2257
    Size: 181.6KB
    Downloads: 77
  • Single Green Leaves PNG Free Photo PNG Image
    Single Green Leaves PNG Free Photo
    Format: PNG
    Resolution: 2016x1929
    Size: 3.1MB
    Downloads: 62
  • Photos Single Green Leaves Free Transparent Image HQ PNG Image
    Photos Single Green Leaves Free Transparent Image HQ
    Format: PNG
    Resolution: 872x1023
    Size: 52.2KB
    Downloads: 50
  • Single Pic Green Leaves Free Transparent Image HQ PNG Image
    Single Pic Green Leaves Free Transparent Image HQ
    Format: PNG
    Resolution: 512x512
    Size: 124.1KB
    Downloads: 57

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