Top Leaf PNG Images
A leaf is the principal lateral appendage of the stem which is in turn part of a plant. Hence a leave is an organ of a vascular plant. The shoot is formed together by the stem and the leaves. Foliage is a term used for referring leaves collectively. As is one must have often heard, 'autumn foliage'. The characteristic of this plant organ is that it is a dorsoventrally flattened organ, usually borne above the ground, and specialised for its function of photosynthesis. Photosynthesis is the process of converting the intake of carbon dioxide into oxygen. The primary photosynthesis tissue, in most leaves, known as palisade mesophyll, is located on the upper side of the blade or lamina of the leaf. However there are still exceptions, like in some species, including the mature foliage of Eucalypts, palisade mesophyll is present on both sides and these leaves are said to be isobilateral.
Many leaves have a distinct upper surface, also known as adaxial and distinct lower surface called abaxial which differ in colour, the number of stomata ( stomata are the pores present on leaves that intake and output gases), hairiness, the amount and structure of epicuticular wax and other features. When talking about the colour of leaves, they are mostly green, but there are always exceptions.
In this sub category you can download free PNG images: Leaf Nature. In this category "Leaf" we have 290 free PNG images with transparent background.
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Yellow Dandelion Download Free Image
Format: PNG
Resolution: 512x512
Size: 219.0KB
Downloads: 194 -
Japanese Flowering Cherry HD Free Photo PNG
Format: PNG
Resolution: 932x720
Size: 218.0KB
Downloads: 194 -
Falling Leaf HQ Image Free PNG
Format: PNG
Resolution: 545x472
Size: 179.7KB
Downloads: 193 -
Green Energy Free Clipart HQ
Format: PNG
Resolution: 512x512
Size: 11.1KB
Downloads: 193 -
Green Energy HD Free Photo PNG
Format: PNG
Resolution: 874x525
Size: 36.3KB
Downloads: 193 -
Jasmine Garland Free Clipart HD
Format: PNG
Resolution: 600x600
Size: 141.9KB
Downloads: 192 -
Gardening Free Transparent Image HQ
Format: PNG
Resolution: 512x512
Size: 17.3KB
Downloads: 192 -
Ground Free Photo PNG
Format: PNG
Resolution: 1164x596
Size: 42.4KB
Downloads: 192 -
Soap Bubbles HD Download HD PNG
Format: PNG
Resolution: 500x500
Size: 78.5KB
Downloads: 191 -
Green Energy HQ Image Free PNG
Format: PNG
Resolution: 3000x3000
Size: 1.1MB
Downloads: 191 -
Dandelion Image Free Download PNG HQ
Format: PNG
Resolution: 500x512
Size: 47.3KB
Downloads: 191 -
Icicles PNG File HD
Format: PNG
Resolution: 900x476
Size: 180.6KB
Downloads: 190 -
Icicles Image Free Download Image
Format: PNG
Resolution: 6126x2538
Size: 2.2MB
Downloads: 190 -
Jasmine Garland Free Download PNG HQ
Format: PNG
Resolution: 480x800
Size: 252.9KB
Downloads: 190 -
Jasmine Garland HD Image Free PNG
Format: PNG
Resolution: 600x800
Size: 241.1KB
Downloads: 190 -
Green Energy Picture HD Image Free PNG
Format: PNG
Resolution: 2400x2400
Size: 58.3KB
Downloads: 189 -
Falling Petals Photos PNG Image High Quality
Format: PNG
Resolution: 852x480
Size: 100.3KB
Downloads: 188 -
Yellow Dandelion Photos Download HD PNG
Format: PNG
Resolution: 650x820
Size: 128.8KB
Downloads: 188 -
Falling Petals HD Download HD PNG
Format: PNG
Resolution: 1920x1080
Size: 523.4KB
Downloads: 187 -
Gardening Image Free HD Image
Format: PNG
Resolution: 432x480
Size: 267.7KB
Downloads: 187
