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 Free Transparent Image HQ PNG Image
    Fresh Leaves Green Free Transparent Image HQ
    Format: PNG
    Resolution: 512x376
    Size: 81.5KB
    Downloads: 100
  • Water Drop Leaf Pic Free Download PNG HQ PNG Image
    Water Drop Leaf Pic Free Download PNG HQ
    Format: PNG
    Resolution: 926x880
    Size: 314.2KB
    Downloads: 100
  • Fresh Leaves Green Free HQ Image PNG Image
    Fresh Leaves Green Free HQ Image
    Format: PNG
    Resolution: 3840x2160
    Size: 3.7MB
    Downloads: 99
  • Water Drop Leaf Free Photo PNG Image
    Water Drop Leaf Free Photo
    Format: PNG
    Resolution: 1600x1200
    Size: 876.9KB
    Downloads: 98
  • Water Drop Leaf Dew Download Free Image PNG Image
    Water Drop Leaf Dew Download Free Image
    Format: PNG
    Resolution: 650x555
    Size: 281.3KB
    Downloads: 97
  • Picture Ivy Hanging PNG Free Photo PNG Image
    Picture Ivy Hanging PNG Free Photo
    Format: PNG
    Resolution: 500x329
    Size: 324.4KB
    Downloads: 97
  • Water Images Drop Leaf Dew PNG Image
    Water Images Drop Leaf Dew
    Format: PNG
    Resolution: 650x838
    Size: 401.0KB
    Downloads: 97
  • Picture Ivy Hanging HQ Image Free PNG Image
    Picture Ivy Hanging HQ Image Free
    Format: PNG
    Resolution: 800x600
    Size: 287.4KB
    Downloads: 96
  • Leaves Green Free Transparent Image HD PNG Image
    Leaves Green Free Transparent Image HD
    Format: PNG
    Resolution: 1023x687
    Size: 315.8KB
    Downloads: 94
  • Leaves Green Ivy Hanging Download HD PNG Image
    Leaves Green Ivy Hanging Download HD
    Format: PNG
    Resolution: 800x800
    Size: 349.4KB
    Downloads: 94
  • Single Green Leaves Download Free Image PNG Image
    Single Green Leaves Download Free Image
    Format: PNG
    Resolution: 512x341
    Size: 188.6KB
    Downloads: 93
  • Water Drop Leaf Free Transparent Image HD PNG Image
    Water Drop Leaf Free Transparent Image HD
    Format: PNG
    Resolution: 816x518
    Size: 428.0KB
    Downloads: 93
  • Water Drop Leaf Dew Free Clipart HQ PNG Image
    Water Drop Leaf Dew Free Clipart HQ
    Format: PNG
    Resolution: 1200x630
    Size: 603.5KB
    Downloads: 93
  • Water Drop Leaf Dew Free Transparent Image HD PNG Image
    Water Drop Leaf Dew Free Transparent Image HD
    Format: PNG
    Resolution: 3000x2804
    Size: 5.1MB
    Downloads: 92
  • Images Ivy Hanging Download HQ PNG Image
    Images Ivy Hanging Download HQ
    Format: PNG
    Resolution: 400x582
    Size: 268.6KB
    Downloads: 91
  • Photos Leaves Green Download HQ PNG Image
    Photos Leaves Green Download HQ
    Format: PNG
    Resolution: 1024x829
    Size: 237.6KB
    Downloads: 89
  • Water Drop Leaf Dew Download HD PNG Image
    Water Drop Leaf Dew Download HD
    Format: PNG
    Resolution: 1181x1181
    Size: 387.7KB
    Downloads: 88
  • Ivy Hanging Download Free Image PNG Image
    Ivy Hanging Download Free Image
    Format: PNG
    Resolution: 1679x827
    Size: 1.7MB
    Downloads: 88
  • Water Picture Drop Leaf Dew PNG Image
    Water Picture Drop Leaf Dew
    Format: PNG
    Resolution: 670x600
    Size: 467.5KB
    Downloads: 87
  • Leaves Green Free HD Image PNG Image
    Leaves Green Free HD Image
    Format: PNG
    Resolution: 2000x2021
    Size: 5.3MB
    Downloads: 86

RELATED CATEGORIES

Green Tea PNG Category

Green Tea

Onion PNG Category

Onion

Garland PNG Category

Garland

Garland PNG Category

Garland

Autumn Leaves PNG Category

Autumn Leaves

Fir PNG Category

Fir

Green Leaves PNG Category

Green Leaves