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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Half Moon Free Clipart HD
Format: PNG
Resolution: 512x512
Size: 19.1KB
Downloads: 261 -
Dandelion HD PNG Free Photo
Format: PNG
Resolution: 800x800
Size: 74.7KB
Downloads: 253 -
Soap Bubbles PNG Image High Quality
Format: PNG
Resolution: 600x600
Size: 205.4KB
Downloads: 253 -
Falling Petals Image Free Download PNG HQ
Format: PNG
Resolution: 1024x576
Size: 299.3KB
Downloads: 250 -
Green Leaf HD Download HQ PNG
Format: PNG
Resolution: 960x403
Size: 387.5KB
Downloads: 250 -
Ground Free HQ Image
Format: PNG
Resolution: 979x816
Size: 666.4KB
Downloads: 249 -
Green Leaf Image Free PNG HQ
Format: PNG
Resolution: 948x624
Size: 351.4KB
Downloads: 248 -
Dandelion Free Download Image
Format: PNG
Resolution: 1955x2000
Size: 444.4KB
Downloads: 247 -
Dandelion Free Clipart HQ
Format: PNG
Resolution: 500x500
Size: 118.4KB
Downloads: 245 -
Green Leaf Download Free Clipart HQ
Format: PNG
Resolution: 640x336
Size: 257.8KB
Downloads: 244 -
Falling Leaf Image Free Clipart HD
Format: PNG
Resolution: 1920x1080
Size: 1.4MB
Downloads: 244 -
Soap Bubbles Download Free Download PNG HD
Format: PNG
Resolution: 1257x641
Size: 282.8KB
Downloads: 243 -
Japanese Flowering Cherry PNG Download Free
Format: PNG
Resolution: 500x469
Size: 214.5KB
Downloads: 243 -
Japanese Flowering Cherry Image Free Clipart HD
Format: PNG
Resolution: 682x700
Size: 674.5KB
Downloads: 242 -
Soap Bubbles PNG Free Photo
Format: PNG
Resolution: 600x332
Size: 42.8KB
Downloads: 241 -
Ice Cube Download Free Image
Format: PNG
Resolution: 1073x360
Size: 618.3KB
Downloads: 241 -
Ice Cube HD Free Download PNG HQ
Format: PNG
Resolution: 749x720
Size: 120.5KB
Downloads: 239 -
Growing Plant Picture Free Clipart HQ
Format: PNG
Resolution: 1146x1675
Size: 793.6KB
Downloads: 239 -
Ground Picture HD Image Free PNG
Format: PNG
Resolution: 1600x1060
Size: 1.4MB
Downloads: 238 -
Icicles Image Free Download PNG HQ
Format: PNG
Resolution: 4055x6000
Size: 2.8MB
Downloads: 238
