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.

  • Leaves Green HD Image Free PNG Image
    Leaves Green HD Image Free
    Format: PNG
    Resolution: 512x384
    Size: 66.9KB
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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
  • Water Drop Leaf Dew Free PNG HQ PNG Image
    Water Drop Leaf Dew Free PNG HQ
    Format: PNG
    Resolution: 1181x1181
    Size: 289.1KB
    Downloads: 57
  • Green Leaves Organic Free PNG HQ PNG Image
    Green Leaves Organic Free PNG HQ
    Format: PNG
    Resolution: 2800x2099
    Size: 6.9MB
    Downloads: 57
  • 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
  • Single Green Leaves PNG Free Photo PNG Image
    Single Green Leaves PNG Free Photo
    Format: PNG
    Resolution: 1024x768
    Size: 426.8KB
    Downloads: 56
  • Leaves Green Ivy Hanging Free HQ Image PNG Image
    Leaves Green Ivy Hanging Free HQ Image
    Format: PNG
    Resolution: 650x465
    Size: 161.0KB
    Downloads: 55
  • Green Leaves Organic Download HD PNG Image
    Green Leaves Organic Download HD
    Format: PNG
    Resolution: 2565x2574
    Size: 1.9MB
    Downloads: 54
  • Ivy Hanging PNG Image High Quality PNG Image
    Ivy Hanging PNG Image High Quality
    Format: PNG
    Resolution: 1023x600
    Size: 619.1KB
    Downloads: 52
  • Green Leaves Organic Free HQ Image PNG Image
    Green Leaves Organic Free HQ Image
    Format: PNG
    Resolution: 505x512
    Size: 198.6KB
    Downloads: 52
  • 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
  • Leaves Green Ivy Hanging Free Download PNG HD PNG Image
    Leaves Green Ivy Hanging Free Download PNG HD
    Format: PNG
    Resolution: 1024x2455
    Size: 2.8MB
    Downloads: 50
  • Fresh Leaves Green HD Image Free PNG Image
    Fresh Leaves Green HD Image Free
    Format: PNG
    Resolution: 2949x2382
    Size: 4.5MB
    Downloads: 50
  • 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
  • Water Drop Leaf Dew PNG File HD PNG Image
    Water Drop Leaf Dew PNG File HD
    Format: PNG
    Resolution: 900x820
    Size: 271.7KB
    Downloads: 49
  • Water Leaf Tree Free HQ Image PNG Image
    Water Leaf Tree Free HQ Image
    Format: PNG
    Resolution: 1006x950
    Size: 88.5KB
    Downloads: 49
  • Ivy Hanging PNG File HD PNG Image
    Ivy Hanging PNG File HD
    Format: PNG
    Resolution: 1024x981
    Size: 1.6MB
    Downloads: 49
  • 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
  • Water Pic Drop Leaf Dew PNG Image
    Water Pic Drop Leaf Dew
    Format: PNG
    Resolution: 2000x1451
    Size: 1.4MB
    Downloads: 46
  • Water Picture Drop Leaf Dew PNG Image
    Water Picture Drop Leaf Dew
    Format: PNG
    Resolution: 1000x664
    Size: 680.4KB
    Downloads: 46

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